Feature: Multi-tenant + Billing + Analytics - 3 new modules with 40+ API endpoints

backend/python/app/api/admin/analytics_admin.py

@@ -0,0 +1,424 @@
+"""
+数据分析管理后端 API
+- 事件采集、聚合统计、仪表盘配置、趋势分析
+- 路由前缀: /app/api/admin/analytics
+"""
+import uuid
+import json
+from datetime import datetime, timedelta, date
+from fastapi import APIRouter, Query, HTTPException, Depends
+from ...database import SessionLocal, get_db
+from ..auth import get_current_user
+from sqlalchemy import text
+from sqlalchemy.orm import Session
+
+router = APIRouter()
+
+CST_TZ = None
+
+def _format_cst_time(dt_val):
+    global CST_TZ
+    if CST_TZ is None:
+        from datetime import timezone
+        CST_TZ = timezone(timedelta(hours=8))
+    if dt_val is None:
+        return None
+    if isinstance(dt_val, str):
+        return dt_val
+    if dt_val.tzinfo is None:
+        dt_val = dt_val.replace(tzinfo=CST_TZ)
+    return dt_val.strftime("%Y-%m-%d %H:%M:%S")
+
+
+# ============================================================
+# 统计概览
+# ============================================================
+
+@router.get("/overview")
+async def analytics_overview(
+    days: int = Query(30, description="统计天数"),
+    db: Session = Depends(get_db),
+    user=Depends(get_current_user)
+):
+    """数据分析总览"""
+    since = datetime.now() - timedelta(days=days)
+
+    # User stats
+    total_users = db.execute(text("SELECT COUNT(*) FROM users")).scalar()
+    active_users = db.execute(text("""
+        SELECT COUNT(DISTINCT user_id) FROM token_usage_logs
+        WHERE created_at >= :since
+    """), {"since": since}).scalar()
+    new_users = db.execute(text("""
+        SELECT COUNT(*) FROM users WHERE created_at >= :since
+    """), {"since": since}).scalar()
+
+    # API stats
+    api_calls = db.execute(text("""
+        SELECT COALESCE(SUM(call_count), 0) FROM api_call_stats
+        WHERE updated_at >= :since
+    """), {"since": since}).scalar()
+    avg_response = db.execute(text("""
+        SELECT COALESCE(AVG(total_response_time/NULLIF(call_count,0)), 0) FROM api_call_stats
+        WHERE updated_at >= :since
+    """), {"since": since}).scalar()
+    error_rate = db.execute(text("""
+        SELECT COALESCE(SUM(error_count)/NULLIF(SUM(call_count),0)*100, 0) FROM api_call_stats
+        WHERE updated_at >= :since
+    """), {"since": since}).scalar()
+
+    # Token stats
+    tokens_used = db.execute(text("""
+        SELECT COALESCE(SUM(total_tokens), 0) FROM token_usage_logs
+        WHERE created_at >= :since
+    """), {"since": since}).scalar()
+    total_cost = db.execute(text("""
+        SELECT COALESCE(SUM(cost), 0) FROM token_usage_logs
+        WHERE created_at >= :since
+    """), {"since": since}).scalar()
+
+    # Chat stats
+    total_chats = db.execute(text("SELECT COUNT(*) FROM conversations")).scalar()
+    total_messages = db.execute(text("SELECT COUNT(*) FROM messages")).scalar()
+
+    # Revenue (from billing_transactions)
+    revenue = db.execute(text("""
+        SELECT COALESCE(SUM(amount), 0) FROM billing_transactions
+        WHERE transaction_type='recharge' AND status='completed' AND created_at >= :since
+    """), {"since": since}).scalar()
+
+    return {"code": 200, "data": {
+        "total_users": total_users,
+        "active_users": active_users,
+        "new_users": new_users,
+        "api_calls": api_calls,
+        "avg_response_time": round(float(avg_response), 2),
+        "error_rate": round(float(error_rate), 2),
+        "tokens_used": tokens_used,
+        "total_cost": float(total_cost),
+        "total_chats": total_chats,
+        "total_messages": total_messages,
+        "revenue": float(revenue),
+        "period_days": days,
+    }}
+
+
+# ============================================================
+# 趋势分析
+# ============================================================
+
+@router.get("/trends/api-calls")
+async def api_call_trends(
+    days: int = Query(7, description="天数"),
+    db: Session = Depends(get_db),
+    user=Depends(get_current_user)
+):
+    """API调用趋势（按天）"""
+    since = (datetime.now() - timedelta(days=days)).strftime('%Y-%m-%d')
+    rows = db.execute(text("""
+        SELECT DATE(created_at) as d, 
+               COUNT(*) as calls,
+               COALESCE(SUM(CASE WHEN status='error' THEN 1 ELSE 0 END), 0) as errors
+        FROM analytics_events
+        WHERE event_type='api_call' AND created_at >= :since
+        GROUP BY DATE(created_at) ORDER BY d
+    """), {"since": since}).fetchall()
+
+    if not rows:
+        # Fallback to api_call_stats
+        rows = db.execute(text("""
+            SELECT DATE(updated_at) as d, SUM(call_count) as calls, SUM(error_count) as errors
+            FROM api_call_stats WHERE updated_at >= :since
+            GROUP BY DATE(updated_at) ORDER BY d
+        """), {"since": since}).fetchall()
+
+    data = [{"date": str(r[0]), "calls": int(r[1] or 0), "errors": int(r[2] or 0)} for r in rows]
+    return {"code": 200, "data": data}
+
+
+@router.get("/trends/tokens")
+async def token_usage_trends(
+    days: int = Query(7, description="天数"),
+    db: Session = Depends(get_db),
+    user=Depends(get_current_user)
+):
+    """Token使用趋势（按天+按模型）"""
+    since = (datetime.now() - timedelta(days=days)).strftime('%Y-%m-%d')
+    rows = db.execute(text("""
+        SELECT DATE(created_at) as d, model_name,
+               SUM(total_tokens) as tokens, SUM(cost) as cost
+        FROM token_usage_logs
+        WHERE created_at >= :since
+        GROUP BY DATE(created_at), model_name
+        ORDER BY d, tokens DESC
+    """), {"since": since}).fetchall()
+
+    # Group by date
+    by_date = {}
+    for r in rows:
+        d = str(r[0])
+        if d not in by_date:
+            by_date[d] = {"date": d, "total_tokens": 0, "models": {}}
+        by_date[d]["total_tokens"] += int(r[2] or 0)
+        model = r[1] or "unknown"
+        by_date[d]["models"][model] = int(r[2] or 0)
+
+    # Model distribution
+    model_dist = {}
+    for r in rows:
+        model = r[1] or "unknown"
+        model_dist[model] = model_dist.get(model, 0) + int(r[2] or 0)
+
+    return {"code": 200, "data": {
+        "daily": list(by_date.values()),
+        "model_distribution": model_dist,
+    }}
+
+
+@router.get("/trends/users")
+async def user_growth_trends(
+    days: int = Query(30, description="天数"),
+    db: Session = Depends(get_db),
+    user=Depends(get_current_user)
+):
+    """用户增长趋势"""
+    since = (datetime.now() - timedelta(days=days)).strftime('%Y-%m-%d')
+    rows = db.execute(text("""
+        SELECT DATE(created_at) as d, COUNT(*) as new_users
+        FROM users WHERE created_at >= :since
+        GROUP BY DATE(created_at) ORDER BY d
+    """), {"since": since}).fetchall()
+
+    data = [{"date": str(r[0]), "new_users": int(r[1])} for r in rows]
+
+    # Cumulative
+    cumulative = 0
+    total_before = db.execute(text("SELECT COUNT(*) FROM users WHERE created_at < :since"),
+                              {"since": since}).scalar()
+    cumulative = total_before
+    for item in data:
+        cumulative += item["new_users"]
+        item["cumulative"] = cumulative
+
+    return {"code": 200, "data": data}
+
+
+@router.get("/trends/revenue")
+async def revenue_trends(
+    days: int = Query(30, description="天数"),
+    db: Session = Depends(get_db),
+    user=Depends(get_current_user)
+):
+    """收入趋势"""
+    since = (datetime.now() - timedelta(days=days)).strftime('%Y-%m-%d')
+    rows = db.execute(text("""
+        SELECT DATE(created_at) as d,
+               COALESCE(SUM(CASE WHEN transaction_type='recharge' THEN amount ELSE 0 END), 0) as revenue,
+               COALESCE(SUM(CASE WHEN transaction_type='consumption' THEN amount ELSE 0 END), 0) as consumption
+        FROM billing_transactions
+        WHERE status='completed' AND created_at >= :since
+        GROUP BY DATE(created_at) ORDER BY d
+    """), {"since": since}).fetchall()
+
+    data = [{"date": str(r[0]), "revenue": float(r[1] or 0), "consumption": float(r[2] or 0)} for r in rows]
+    return {"code": 200, "data": data}
+
+
+# ============================================================
+# 模型使用分析
+# ============================================================
+
+@router.get("/models/usage")
+async def model_usage_analysis(
+    days: int = Query(30, description="天数"),
+    db: Session = Depends(get_db),
+    user=Depends(get_current_user)
+):
+    """模型使用分析"""
+    since = (datetime.now() - timedelta(days=days)).strftime('%Y-%m-%d')
+    rows = db.execute(text("""
+        SELECT model_name,
+               COUNT(*) as call_count,
+               SUM(total_tokens) as total_tokens,
+               SUM(prompt_tokens) as prompt_tokens,
+               SUM(completion_tokens) as completion_tokens,
+               SUM(cost) as total_cost,
+               AVG(total_tokens) as avg_tokens
+        FROM token_usage_logs
+        WHERE created_at >= :since AND model_name IS NOT NULL
+        GROUP BY model_name
+        ORDER BY total_tokens DESC
+    """), {"since": since}).fetchall()
+
+    data = [{
+        "model_name": r[0],
+        "call_count": int(r[1]),
+        "total_tokens": int(r[2] or 0),
+        "prompt_tokens": int(r[3] or 0),
+        "completion_tokens": int(r[4] or 0),
+        "total_cost": float(r[5] or 0),
+        "avg_tokens": round(float(r[6] or 0), 0),
+    } for r in rows]
+    return {"code": 200, "data": data}
+
+
+# ============================================================
+# 仪表盘配置
+# ============================================================
+
+@router.get("/dashboards")
+async def list_dashboards(db: Session = Depends(get_db), user=Depends(get_current_user)):
+    """获取仪表盘配置列表"""
+    rows = db.execute(text("""
+        SELECT ad.*, u.username as created_by_name
+        FROM analytics_dashboards ad
+        LEFT JOIN users u ON ad.created_by = u.id
+        ORDER BY ad.is_default DESC, ad.created_at DESC
+    """)).fetchall()
+    cols = ['id','tenant_id','name','description','config','is_default',
+            'created_by','created_at','updated_at','created_by_name']
+    items = []
+    for r in rows:
+        d = _format_cst_time_dict(r, cols)
+        items.append(d)
+    return {"code": 200, "data": items}
+
+
+def _format_cst_time_dict(row, columns):
+    result = {}
+    for col, val in zip(columns, row):
+        if isinstance(val, datetime):
+            result[col] = _format_cst_time(val)
+        elif isinstance(val, str) and val and val.startswith('[') or (isinstance(val, str) and val and val.startswith('{')):
+            try:
+                result[col] = json.loads(val)
+            except:
+                result[col] = val
+        else:
+            result[col] = val
+    return result
+
+
+@router.post("/dashboards/create")
+async def create_dashboard(
+    name: str = Query(...),
+    description: str = Query(""),
+    config: str = Query(..., description="仪表盘配置JSON"),
+    is_default: int = Query(0),
+    db: Session = Depends(get_db),
+    user=Depends(get_current_user)
+):
+    """创建仪表盘"""
+    did = str(uuid.uuid4())
+    try:
+        config_json = json.loads(config)
+    except:
+        config_json = json.loads('[{"type":"stat","title":"暂无数据","metric":"none","chart_type":"number"}]')
+
+    if is_default:
+        db.execute(text("UPDATE analytics_dashboards SET is_default=0"))
+
+    db.execute(text("""
+        INSERT INTO analytics_dashboards (id, name, description, config, is_default, created_by)
+        VALUES (:id, :name, :desc, :config, :default, :uid)
+    """), {
+        "id": did, "name": name, "desc": description,
+        "config": json.dumps(config_json), "default": is_default, "uid": user.id
+    })
+    db.commit()
+    return {"code": 200, "data": {"id": did, "message": "仪表盘创建成功"}}
+
+
+@router.delete("/dashboards/{dashboard_id}")
+async def delete_dashboard(dashboard_id: str, db: Session = Depends(get_db), user=Depends(get_current_user)):
+    """删除仪表盘"""
+    db.execute(text("DELETE FROM analytics_dashboards WHERE id=:id AND is_default=0"), {"id": dashboard_id})
+    db.commit()
+    return {"code": 200, "data": {"message": "仪表盘已删除"}}
+
+
+# ============================================================
+# 事件记录
+# ============================================================
+
+@router.post("/events/record")
+async def record_event(
+    event_type: str = Query(..., description="事件类型"),
+    event_category: str = Query("general"),
+    event_data: str = Query("", description="事件数据JSON"),
+    duration_ms: int = Query(None),
+    status: str = Query("success"),
+    db: Session = Depends(get_db),
+    user=Depends(get_current_user)
+):
+    """记录分析事件"""
+    data = None
+    if event_data:
+        try:
+            data = json.loads(event_data)
+        except:
+            data = {"raw": event_data}
+
+    db.execute(text("""
+        INSERT INTO analytics_events (tenant_id, user_id, event_type, event_category, event_data, duration_ms, status)
+        VALUES (:tid, :uid, :et, :ec, :data, :dur, :status)
+    """), {
+        "tid": None, "uid": user.id, "et": event_type, "ec": event_category,
+        "data": json.dumps(data) if data else None,
+        "dur": duration_ms, "status": status
+    })
+    db.commit()
+    return {"code": 200, "data": {"message": "事件已记录"}}
+
+
+@router.get("/events")
+async def list_events(
+    page: int = Query(1, ge=1),
+    page_size: int = Query(20, ge=1, le=100),
+    event_type: str = Query(""),
+    event_category: str = Query(""),
+    status: str = Query(""),
+    days: int = Query(7, description="查询天数"),
+    db: Session = Depends(get_db),
+    user=Depends(get_current_user)
+):
+    """获取事件列表"""
+    since = (datetime.now() - timedelta(days=days)).strftime('%Y-%m-%d')
+    where = "ae.created_at >= :since"
+    params = {"since": since}
+    if event_type:
+        where += " AND ae.event_type=:et"
+        params["et"] = event_type
+    if event_category:
+        where += " AND ae.event_category=:ec"
+        params["ec"] = event_category
+    if status:
+        where += " AND ae.status=:st"
+        params["st"] = status
+
+    total = db.execute(text(f"SELECT COUNT(*) FROM analytics_events ae WHERE {where}"), params).scalar()
+    offset = (page - 1) * page_size
+    rows = db.execute(text(f"""
+        SELECT ae.*, u.username
+        FROM analytics_events ae
+        LEFT JOIN users u ON ae.user_id = u.id
+        WHERE {where}
+        ORDER BY ae.created_at DESC LIMIT :limit OFFSET :offset
+    """), {**params, "limit": page_size, "offset": offset}).fetchall()
+    cols = ['id','tenant_id','user_id','event_type','event_category','event_data',
+            'ip_address','user_agent','duration_ms','status','created_at','username']
+    items = []
+    for r in rows:
+        d = {}
+        for col, val in zip(cols, r):
+            if isinstance(val, datetime):
+                d[col] = _format_cst_time(val)
+            elif isinstance(val, str) and val and (val.startswith('{') or val.startswith('[')):
+                try:
+                    d[col] = json.loads(val)
+                except:
+                    d[col] = val
+            else:
+                d[col] = val
+        items.append(d)
+    return {"code": 200, "data": {"items": items, "total": total, "page": page, "page_size": page_size}}

backend/python/app/api/admin/billing_admin.py

@@ -0,0 +1,462 @@
+"""
+计费与支付管理后端 API
+- 计费规则、充值套餐、交易记录、账单管理、支付配置
+- 路由前缀: /app/api/admin/billing
+"""
+import uuid
+import json
+from datetime import datetime, timedelta
+from fastapi import APIRouter, Query, HTTPException, Depends
+from ...database import SessionLocal, get_db
+from ..auth import get_current_user
+from sqlalchemy import text
+from sqlalchemy.orm import Session
+
+router = APIRouter()
+
+CST_TZ = None
+
+def _format_cst_time(dt_val):
+    global CST_TZ
+    if CST_TZ is None:
+        from datetime import timezone
+        CST_TZ = timezone(timedelta(hours=8))
+    if dt_val is None:
+        return None
+    if isinstance(dt_val, str):
+        return dt_val
+    if dt_val.tzinfo is None:
+        dt_val = dt_val.replace(tzinfo=CST_TZ)
+    return dt_val.strftime("%Y-%m-%d %H:%M:%S")
+
+def _row_to_dict(row, columns):
+    return {col: _format_cst_time(val) if isinstance(val, datetime) else val for col, val in zip(columns, row)}
+
+
+# ============================================================
+# 计费规则
+# ============================================================
+
+@router.get("/rules")
+async def list_billing_rules(
+    status: str = Query("", description="状态筛选"),
+    billing_type: str = Query("", description="计费类型筛选"),
+    page: int = Query(1, ge=1),
+    page_size: int = Query(20, ge=1, le=100),
+    db: Session = Depends(get_db),
+    user=Depends(get_current_user)
+):
+    """获取计费规则列表"""
+    where = "1=1"
+    params = {}
+    if status:
+        where += " AND status=:status"
+        params["status"] = status
+    if billing_type:
+        where += " AND billing_type=:bt"
+        params["bt"] = billing_type
+
+    total = db.execute(text(f"SELECT COUNT(*) FROM billing_rules WHERE {where}"), params).scalar()
+    offset = (page - 1) * page_size
+    rows = db.execute(text(f"""
+        SELECT * FROM billing_rules WHERE {where}
+        ORDER BY created_at DESC LIMIT :limit OFFSET :offset
+    """), {**params, "limit": page_size, "offset": offset}).fetchall()
+    cols = ['id','name','description','billing_type','model_id','model_name','rate','currency',
+            'min_charge','free_quota','tiered_pricing','status','created_at','updated_at']
+    items = [_row_to_dict(r, cols) for r in rows]
+    return {"code": 200, "data": {"items": items, "total": total, "page": page, "page_size": page_size}}
+
+
+@router.post("/rules/create")
+async def create_billing_rule(
+    name: str = Query(...),
+    description: str = Query(""),
+    billing_type: str = Query("per_token"),
+    model_id: str = Query(""),
+    model_name: str = Query(""),
+    rate: float = Query(0.0),
+    min_charge: float = Query(0.01),
+    free_quota: int = Query(0),
+    tiered_pricing: str = Query("", description="阶梯定价JSON"),
+    status: str = Query("active"),
+    db: Session = Depends(get_db),
+    user=Depends(get_current_user)
+):
+    """创建计费规则"""
+    rid = str(uuid.uuid4())
+    tp = None
+    if tiered_pricing:
+        try:
+            tp = json.loads(tiered_pricing)
+        except:
+            tp = None
+
+    db.execute(text("""
+        INSERT INTO billing_rules (id, name, description, billing_type, model_id, model_name, rate,
+            min_charge, free_quota, tiered_pricing, status)
+        VALUES (:id, :name, :desc, :bt, :mid, :mname, :rate, :mc, :fq, :tp, :status)
+    """), {
+        "id": rid, "name": name, "desc": description, "bt": billing_type,
+        "mid": model_id or None, "mname": model_name or None, "rate": rate,
+        "mc": min_charge, "fq": free_quota, "tp": json.dumps(tp) if tp else None,
+        "status": status
+    })
+    db.commit()
+    return {"code": 200, "data": {"id": rid, "message": "计费规则创建成功"}}
+
+
+@router.put("/rules/{rule_id}")
+async def update_billing_rule(
+    rule_id: str,
+    name: str = Query(None),
+    description: str = Query(None),
+    rate: float = Query(None),
+    min_charge: float = Query(None),
+    free_quota: int = Query(None),
+    status: str = Query(None),
+    tiered_pricing: str = Query(None),
+    db: Session = Depends(get_db),
+    user=Depends(get_current_user)
+):
+    """更新计费规则"""
+    sets = []
+    params = {"id": rule_id}
+    for field, val in [("name", name), ("description", description), ("rate", rate),
+                       ("min_charge", min_charge), ("free_quota", free_quota), ("status", status)]:
+        if val is not None:
+            sets.append(f"{field}=:{field}")
+            params[field] = val
+    if tiered_pricing is not None:
+        sets.append("tiered_pricing=:tp")
+        try:
+            params["tp"] = json.dumps(json.loads(tiered_pricing))
+        except:
+            params["tp"] = None
+
+    if not sets:
+        return {"code": 200, "data": {"message": "无更新"}}
+    db.execute(text(f"UPDATE billing_rules SET {','.join(sets)} WHERE id=:id"), params)
+    db.commit()
+    return {"code": 200, "data": {"message": "更新成功"}}
+
+
+@router.delete("/rules/{rule_id}")
+async def delete_billing_rule(rule_id: str, db: Session = Depends(get_db), user=Depends(get_current_user)):
+    """删除计费规则"""
+    db.execute(text("UPDATE billing_rules SET status='inactive' WHERE id=:id"), {"id": rule_id})
+    db.commit()
+    return {"code": 200, "data": {"message": "规则已停用"}}
+
+
+# ============================================================
+# 充值套餐
+# ============================================================
+
+@router.get("/packages")
+async def list_packages(
+    status: str = Query(""),
+    db: Session = Depends(get_db),
+    user=Depends(get_current_user)
+):
+    """获取充值套餐列表"""
+    where = "1=1"
+    params = {}
+    if status:
+        where += " AND status=:status"
+        params["status"] = status
+    rows = db.execute(text(f"""
+        SELECT * FROM recharge_packages WHERE {where}
+        ORDER BY sort_order ASC, price ASC
+    """), params).fetchall()
+    cols = ['id','name','description','tokens','bonus_tokens','price','original_price',
+            'currency','valid_days','is_popular','sort_order','status','created_at','updated_at']
+    items = [_row_to_dict(r, cols) for r in rows]
+    return {"code": 200, "data": items}
+
+
+@router.post("/packages/create")
+async def create_package(
+    name: str = Query(...),
+    description: str = Query(""),
+    tokens: int = Query(...),
+    bonus_tokens: int = Query(0),
+    price: float = Query(...),
+    original_price: float = Query(0),
+    valid_days: int = Query(365),
+    is_popular: int = Query(0),
+    sort_order: int = Query(0),
+    status: str = Query("active"),
+    db: Session = Depends(get_db),
+    user=Depends(get_current_user)
+):
+    """创建充值套餐"""
+    pid = str(uuid.uuid4())
+    db.execute(text("""
+        INSERT INTO recharge_packages (id, name, description, tokens, bonus_tokens, price, original_price,
+            valid_days, is_popular, sort_order, status)
+        VALUES (:id, :name, :desc, :tokens, :bonus, :price, :oprice, :vd, :pop, :sort, :status)
+    """), {
+        "id": pid, "name": name, "desc": description, "tokens": tokens, "bonus": bonus_tokens,
+        "price": price, "oprice": original_price or None, "vd": valid_days,
+        "pop": is_popular, "sort": sort_order, "status": status
+    })
+    db.commit()
+    return {"code": 200, "data": {"id": pid, "message": "套餐创建成功"}}
+
+
+@router.put("/packages/{package_id}")
+async def update_package(
+    package_id: str,
+    name: str = Query(None),
+    price: float = Query(None),
+    tokens: int = Query(None),
+    bonus_tokens: int = Query(None),
+    status: str = Query(None),
+    is_popular: int = Query(None),
+    sort_order: int = Query(None),
+    db: Session = Depends(get_db),
+    user=Depends(get_current_user)
+):
+    """更新充值套餐"""
+    sets = []
+    params = {"id": package_id}
+    for field, val in [("name", name), ("price", price), ("tokens", tokens),
+                       ("bonus_tokens", bonus_tokens), ("status", status),
+                       ("is_popular", is_popular), ("sort_order", sort_order)]:
+        if val is not None:
+            sets.append(f"{field}=:{field}")
+            params[field] = val
+    if not sets:
+        return {"code": 200, "data": {"message": "无更新"}}
+    db.execute(text(f"UPDATE recharge_packages SET {','.join(sets)} WHERE id=:id"), params)
+    db.commit()
+    return {"code": 200, "data": {"message": "更新成功"}}
+
+
+@router.delete("/packages/{package_id}")
+async def delete_package(package_id: str, db: Session = Depends(get_db), user=Depends(get_current_user)):
+    """删除充值套餐"""
+    db.execute(text("UPDATE recharge_packages SET status='inactive' WHERE id=:id"), {"id": package_id})
+    db.commit()
+    return {"code": 200, "data": {"message": "套餐已停用"}}
+
+
+# ============================================================
+# 交易记录
+# ============================================================
+
+@router.get("/transactions")
+async def list_transactions(
+    page: int = Query(1, ge=1),
+    page_size: int = Query(20, ge=1, le=100),
+    user_id: str = Query("", description="用户筛选"),
+    transaction_type: str = Query("", description="类型筛选"),
+    start_date: str = Query("", description="开始日期"),
+    end_date: str = Query("", description="结束日期"),
+    db: Session = Depends(get_db),
+    user=Depends(get_current_user)
+):
+    """获取交易记录"""
+    where = "1=1"
+    params = {}
+    if user_id:
+        where += " AND bt.user_id=:uid"
+        params["uid"] = user_id
+    if transaction_type:
+        where += " AND bt.transaction_type=:tt"
+        params["tt"] = transaction_type
+    if start_date:
+        where += " AND bt.created_at>=:sd"
+        params["sd"] = start_date
+    if end_date:
+        where += " AND bt.created_at<=:ed"
+        params["ed"] = end_date + " 23:59:59"
+
+    total = db.execute(text(f"SELECT COUNT(*) FROM billing_transactions bt WHERE {where}"), params).scalar()
+    offset = (page - 1) * page_size
+    rows = db.execute(text(f"""
+        SELECT bt.*, u.username
+        FROM billing_transactions bt
+        LEFT JOIN users u ON bt.user_id = u.id
+        WHERE {where}
+        ORDER BY bt.created_at DESC LIMIT :limit OFFSET :offset
+    """), {**params, "limit": page_size, "offset": offset}).fetchall()
+    cols = ['id','tenant_id','user_id','order_id','transaction_type','amount','tokens',
+            'balance_after','model_id','model_name','description','metadata','status',
+            'created_at','username']
+    items = [_row_to_dict(r, cols) for r in rows]
+    return {"code": 200, "data": {"items": items, "total": total, "page": page, "page_size": page_size}}
+
+
+# ============================================================
+# 账单管理
+# ============================================================
+
+@router.get("/invoices")
+async def list_invoices(
+    page: int = Query(1, ge=1),
+    page_size: int = Query(20, ge=1, le=100),
+    status: str = Query(""),
+    db: Session = Depends(get_db),
+    user=Depends(get_current_user)
+):
+    """获取账单列表"""
+    where = "1=1"
+    params = {}
+    if status:
+        where += " AND status=:status"
+        params["status"] = status
+
+    total = db.execute(text(f"SELECT COUNT(*) FROM invoices WHERE {where}"), params).scalar()
+    offset = (page - 1) * page_size
+    rows = db.execute(text(f"""
+        SELECT i.*, u.username
+        FROM invoices i
+        LEFT JOIN users u ON i.user_id = u.id
+        WHERE {where}
+        ORDER BY i.created_at DESC LIMIT :limit OFFSET :offset
+    """), {**params, "limit": page_size, "offset": offset}).fetchall()
+    cols = ['id','invoice_number','tenant_id','user_id','period_start','period_end',
+            'subtotal','discount','tax','total','items','status','issued_at','paid_at',
+            'due_at','payment_method','created_at','updated_at','username']
+    items = [_row_to_dict(r, cols) for r in rows]
+    return {"code": 200, "data": {"items": items, "total": total, "page": page, "page_size": page_size}}
+
+
+@router.post("/invoices/generate")
+async def generate_invoice(
+    user_id: str = Query(..., description="用户ID"),
+    period_start: str = Query(..., description="周期开始"),
+    period_end: str = Query(..., description="周期结束"),
+    db: Session = Depends(get_db),
+    user=Depends(get_current_user)
+):
+    """生成账单"""
+    # Calculate usage from token_usage_logs
+    usage = db.execute(text("""
+        SELECT model_name, SUM(total_tokens) as tokens, SUM(cost) as total_cost
+        FROM token_usage_logs
+        WHERE user_id=:uid AND created_at>=:ps AND created_at<=:pe
+        GROUP BY model_name
+    """), {"uid": user_id, "ps": period_start, "pe": period_end}).fetchall()
+
+    if not usage:
+        return {"code": 200, "data": {"message": "该周期内无使用记录"}}
+
+    items = []
+    subtotal = 0
+    for row in usage:
+        model_name = row[0] or "未知模型"
+        tokens = row[1] or 0
+        cost = float(row[2] or 0)
+        items.append({"name": model_name, "quantity": tokens, "unit_price": cost / tokens if tokens > 0 else 0, "amount": cost})
+        subtotal += cost
+
+    invoice_number = f"INV-{datetime.now().strftime('%Y%m%d%H%M%S')}-{uuid.uuid4().hex[:6]}"
+    iid = str(uuid.uuid4())
+
+    db.execute(text("""
+        INSERT INTO invoices (id, invoice_number, user_id, period_start, period_end, subtotal, total, items, status)
+        VALUES (:id, :num, :uid, :ps, :pe, :sub, :total, :items, 'issued')
+    """), {
+        "id": iid, "num": invoice_number, "uid": user_id,
+        "ps": period_start, "pe": period_end, "sub": subtotal,
+        "total": subtotal, "items": json.dumps(items)
+    })
+    db.commit()
+    return {"code": 200, "data": {"id": iid, "invoice_number": invoice_number, "total": subtotal, "items": items}}
+
+
+# ============================================================
+# 支付配置 (扩展现有 payment_configs)
+# ============================================================
+
+@router.get("/payment-configs")
+async def list_payment_configs(db: Session = Depends(get_db), user=Depends(get_current_user)):
+    """获取支付配置列表"""
+    rows = db.execute(text("SELECT * FROM payment_configs ORDER BY created_at DESC")).fetchall()
+    cols = ['id','type','app_id','merchant_id','api_key','cert_path','gateway_url','status',
+            'created_at','updated_at','api_v3_key','cert_serial_no','alipay_public_key',
+            'app_private_key','notify_url','return_url']
+    items = []
+    for r in rows:
+        d = _row_to_dict(r, cols)
+        # Mask sensitive fields
+        d['api_key'] = '***' if d.get('api_key') else None
+        d['api_v3_key'] = '***' if d.get('api_v3_key') else None
+        d['app_private_key'] = '***' if d.get('app_private_key') else None
+        items.append(d)
+    return {"code": 200, "data": items}
+
+
+@router.put("/payment-configs/{config_id}")
+async def update_payment_config(
+    config_id: str,
+    status: str = Query(None),
+    app_id: str = Query(None),
+    merchant_id: str = Query(None),
+    gateway_url: str = Query(None),
+    notify_url: str = Query(None),
+    return_url: str = Query(None),
+    db: Session = Depends(get_db),
+    user=Depends(get_current_user)
+):
+    """更新支付配置"""
+    sets = []
+    params = {"id": config_id}
+    for field, val in [("status", status), ("app_id", app_id), ("merchant_id", merchant_id),
+                       ("gateway_url", gateway_url), ("notify_url", notify_url), ("return_url", return_url)]:
+        if val is not None:
+            sets.append(f"{field}=:{field}")
+            params[field] = val
+    if not sets:
+        return {"code": 200, "data": {"message": "无更新"}}
+    db.execute(text(f"UPDATE payment_configs SET {','.join(sets)} WHERE id=:id"), params)
+    db.commit()
+    return {"code": 200, "data": {"message": "支付配置已更新"}}
+
+
+# ============================================================
+# 统计
+# ============================================================
+
+@router.get("/stats/overview")
+async def billing_stats(db: Session = Depends(get_db), user=Depends(get_current_user)):
+    """计费统计概览"""
+    total_revenue = db.execute(text("""
+        SELECT COALESCE(SUM(amount), 0) FROM billing_transactions 
+        WHERE transaction_type='recharge' AND status='completed'
+    """)).scalar() or 0
+
+    total_consumption = db.execute(text("""
+        SELECT COALESCE(SUM(amount), 0) FROM billing_transactions
+        WHERE transaction_type='consumption' AND status='completed'
+    """)).scalar() or 0
+
+    total_transactions = db.execute(text("SELECT COUNT(*) FROM billing_transactions")).scalar()
+    pending_invoices = db.execute(text("SELECT COUNT(*) FROM invoices WHERE status IN ('issued','overdue')")).scalar()
+    paid_invoices = db.execute(text("SELECT COUNT(*) FROM invoices WHERE status='paid'")).scalar()
+    active_rules = db.execute(text("SELECT COUNT(*) FROM billing_rules WHERE status='active'")).scalar()
+    active_packages = db.execute(text("SELECT COUNT(*) FROM recharge_packages WHERE status='active'")).scalar()
+
+    # Revenue by day (last 7 days)
+    revenue_7d = db.execute(text("""
+        SELECT DATE(created_at) as d, COALESCE(SUM(amount), 0) as rev
+        FROM billing_transactions
+        WHERE transaction_type='recharge' AND status='completed'
+          AND created_at >= DATE_SUB(NOW(), INTERVAL 7 DAY)
+        GROUP BY DATE(created_at) ORDER BY d
+    """)).fetchall()
+    daily_revenue = [{"date": str(r[0]), "revenue": float(r[1])} for r in revenue_7d]
+
+    return {"code": 200, "data": {
+        "total_revenue": float(total_revenue),
+        "total_consumption": float(total_consumption),
+        "total_transactions": total_transactions,
+        "pending_invoices": pending_invoices,
+        "paid_invoices": paid_invoices,
+        "active_rules": active_rules,
+        "active_packages": active_packages,
+        "daily_revenue_7d": daily_revenue,
+    }}

backend/python/app/api/admin/tenant_admin.py

@@ -0,0 +1,426 @@
+"""
+多租户管理后端 API
+- 租户 CRUD、成员管理、配额管理、邀请管理
+- 路由前缀: /app/api/admin/tenant
+"""
+import uuid
+import json
+from datetime import datetime, timedelta
+from fastapi import APIRouter, Query, HTTPException, Depends
+from ...database import SessionLocal, get_db
+from ..auth import get_current_user
+from sqlalchemy import text
+from sqlalchemy.orm import Session
+
+router = APIRouter()
+
+CST_TZ = None
+
+def _format_cst_time(dt_val):
+    """Format datetime to CST string."""
+    global CST_TZ
+    if CST_TZ is None:
+        from datetime import timezone
+        CST_TZ = timezone(timedelta(hours=8))
+    if dt_val is None:
+        return None
+    if isinstance(dt_val, str):
+        return dt_val
+    if dt_val.tzinfo is None:
+        dt_val = dt_val.replace(tzinfo=CST_TZ)
+    return dt_val.strftime("%Y-%m-%d %H:%M:%S")
+
+def _row_to_dict(row, columns):
+    """Convert a SQLAlchemy row to dict."""
+    return {col: _format_cst_time(val) if isinstance(val, datetime) else val for col, val in zip(columns, row)}
+
+def _execute_raw(db: Session, sql: str, params: dict = None):
+    """Execute raw SQL and return results."""
+    result = db.execute(text(sql), params or {})
+    if result.returns_rows:
+        cols = list(result.keys())
+        rows = result.fetchall()
+        return [_row_to_dict(row, cols) for row in rows]
+    return []
+
+
+# ============================================================
+# 租户管理
+# ============================================================
+
+@router.get("/list")
+async def list_tenants(
+    page: int = Query(1, ge=1),
+    page_size: int = Query(20, ge=1, le=100),
+    keyword: str = Query("", description="搜索关键词"),
+    status: str = Query("", description="状态筛选"),
+    db: Session = Depends(get_db),
+    user=Depends(get_current_user)
+):
+    """获取租户列表"""
+    where = "1=1"
+    params = {}
+    if keyword:
+        where += " AND (name LIKE :kw OR slug LIKE :kw)"
+        params["kw"] = f"%{keyword}%"
+    if status:
+        where += " AND status = :status"
+        params["status"] = status
+
+    count_sql = f"SELECT COUNT(*) FROM tenants WHERE {where}"
+    total = db.execute(text(count_sql), params).scalar()
+
+    offset = (page - 1) * page_size
+    list_sql = f"""
+        SELECT t.*, 
+               (SELECT COUNT(*) FROM tenant_members WHERE tenant_id=t.id AND status='active') as member_count
+        FROM tenants t WHERE {where}
+        ORDER BY t.created_at DESC LIMIT :limit OFFSET :offset
+    """
+    params["limit"] = page_size
+    params["offset"] = offset
+    rows = db.execute(text(list_sql), params).fetchall()
+    cols = list(db.execute(text(list_sql), params).keys())
+
+    items = []
+    for row in rows:
+        d = _row_to_dict(row, cols)
+        items.append(d)
+
+    return {"code": 200, "data": {"items": items, "total": total, "page": page, "page_size": page_size}}
+
+
+@router.post("/create")
+async def create_tenant(
+    name: str = Query(..., description="租户名称"),
+    slug: str = Query(..., description="租户标识"),
+    description: str = Query("", description="描述"),
+    max_members: int = Query(10, description="最大成员数"),
+    max_storage_mb: int = Query(10240, description="最大存储(MB)"),
+    max_api_calls_per_day: int = Query(10000, description="每日API调用上限"),
+    expire_at: str = Query("", description="到期时间"),
+    db: Session = Depends(get_db),
+    user=Depends(get_current_user)
+):
+    """创建租户"""
+    tid = str(uuid.uuid4())
+    expire = None
+    if expire_at:
+        try:
+            expire = datetime.fromisoformat(expire_at)
+        except:
+            pass
+
+    # Check slug uniqueness
+    existing = db.execute(text("SELECT id FROM tenants WHERE slug=:slug"), {"slug": slug}).fetchone()
+    if existing:
+        raise HTTPException(status_code=400, detail="slug已存在")
+
+    db.execute(text("""
+        INSERT INTO tenants (id, name, slug, description, status, max_members, max_storage_mb, max_api_calls_per_day, expire_at)
+        VALUES (:id, :name, :slug, :desc, 'active', :mm, :ms, :ma, :exp)
+    """), {
+        "id": tid, "name": name, "slug": slug, "desc": description,
+        "mm": max_members, "ms": max_storage_mb, "ma": max_api_calls_per_day,
+        "exp": expire
+    })
+
+    # Add creator as owner
+    db.execute(text("""
+        INSERT INTO tenant_members (id, tenant_id, user_id, role, status)
+        VALUES (:mid, :tid, :uid, 'owner', 'active')
+    """), {"mid": str(uuid.uuid4()), "tid": tid, "uid": user.id})
+
+    db.commit()
+    return {"code": 200, "data": {"id": tid, "message": "租户创建成功"}}
+
+
+@router.get("/{tenant_id}")
+async def get_tenant(tenant_id: str, db: Session = Depends(get_db), user=Depends(get_current_user)):
+    """获取租户详情"""
+    row = db.execute(text("""
+        SELECT t.*, 
+               (SELECT COUNT(*) FROM tenant_members WHERE tenant_id=t.id AND status='active') as member_count,
+               (SELECT COUNT(*) FROM tenant_quotas WHERE tenant_id=t.id) as quota_count
+        FROM tenants t WHERE t.id=:id
+    """), {"id": tenant_id}).fetchone()
+    if not row:
+        raise HTTPException(status_code=404, detail="租户不存在")
+    cols = list(db.execute(text("SELECT t.* FROM tenants t WHERE t.id=:id"), {"id": tenant_id}).keys())
+    # Re-query with proper cols
+    cols = ['id','name','slug','logo','description','status','plan_id','max_members','max_storage_mb',
+            'max_api_calls_per_day','settings','created_at','updated_at','expire_at','member_count','quota_count']
+    return {"code": 200, "data": _row_to_dict(row, cols)}
+
+
+@router.put("/{tenant_id}")
+async def update_tenant(
+    tenant_id: str,
+    name: str = Query(None),
+    description: str = Query(None),
+    status: str = Query(None),
+    max_members: int = Query(None),
+    max_storage_mb: int = Query(None),
+    max_api_calls_per_day: int = Query(None),
+    expire_at: str = Query(None),
+    db: Session = Depends(get_db),
+    user=Depends(get_current_user)
+):
+    """更新租户"""
+    sets = []
+    params = {"id": tenant_id}
+    for field, val in [("name", name), ("description", description), ("status", status),
+                       ("max_members", max_members), ("max_storage_mb", max_storage_mb),
+                       ("max_api_calls_per_day", max_api_calls_per_day)]:
+        if val is not None:
+            sets.append(f"{field}=:{field}")
+            params[field] = val
+    if expire_at is not None:
+        sets.append("expire_at=:expire_at")
+        try:
+            params["expire_at"] = datetime.fromisoformat(expire_at) if expire_at else None
+        except:
+            params["expire_at"] = None
+
+    if not sets:
+        return {"code": 200, "data": {"message": "无更新"}}
+    
+    db.execute(text(f"UPDATE tenants SET {','.join(sets)} WHERE id=:id"), params)
+    db.commit()
+    return {"code": 200, "data": {"message": "更新成功"}}
+
+
+@router.delete("/{tenant_id}")
+async def delete_tenant(tenant_id: str, db: Session = Depends(get_db), user=Depends(get_current_user)):
+    """删除租户（软删除 - 标记为terminated）"""
+    if tenant_id == "default-tenant-0001":
+        raise HTTPException(status_code=400, detail="默认租户不可删除")
+    db.execute(text("UPDATE tenants SET status='terminated' WHERE id=:id"), {"id": tenant_id})
+    db.commit()
+    return {"code": 200, "data": {"message": "租户已终止"}}
+
+
+# ============================================================
+# 成员管理
+# ============================================================
+
+@router.get("/{tenant_id}/members")
+async def list_members(
+    tenant_id: str,
+    page: int = Query(1, ge=1),
+    page_size: int = Query(20, ge=1, le=100),
+    db: Session = Depends(get_db),
+    user=Depends(get_current_user)
+):
+    """获取租户成员列表"""
+    total = db.execute(text("SELECT COUNT(*) FROM tenant_members WHERE tenant_id=:tid AND status!='removed'"),
+                       {"tid": tenant_id}).scalar()
+    offset = (page - 1) * page_size
+    rows = db.execute(text("""
+        SELECT tm.id, tm.tenant_id, tm.user_id, tm.role, tm.status, tm.joined_at,
+               u.username, u.email, u.avatar, u.role as user_role
+        FROM tenant_members tm
+        LEFT JOIN users u ON tm.user_id = u.id
+        WHERE tm.tenant_id=:tid AND tm.status!='removed'
+        ORDER BY tm.joined_at DESC LIMIT :limit OFFSET :offset
+    """), {"tid": tenant_id, "limit": page_size, "offset": offset}).fetchall()
+    cols = ['id','tenant_id','user_id','role','status','joined_at','username','email','avatar','user_role']
+    items = [_row_to_dict(r, cols) for r in rows]
+    return {"code": 200, "data": {"items": items, "total": total, "page": page, "page_size": page_size}}
+
+
+@router.post("/{tenant_id}/members/add")
+async def add_member(
+    tenant_id: str,
+    user_id: str = Query(..., description="用户ID"),
+    role: str = Query("member", description="角色: owner/admin/member/viewer"),
+    db: Session = Depends(get_db),
+    user=Depends(get_current_user)
+):
+    """添加成员到租户"""
+    # Check tenant exists
+    t = db.execute(text("SELECT max_members FROM tenants WHERE id=:id AND status='active'"), {"id": tenant_id}).fetchone()
+    if not t:
+        raise HTTPException(status_code=404, detail="租户不存在或已停用")
+    
+    # Check member limit
+    cnt = db.execute(text("SELECT COUNT(*) FROM tenant_members WHERE tenant_id=:tid AND status='active'"),
+                     {"tid": tenant_id}).scalar()
+    if cnt >= t[0]:
+        raise HTTPException(status_code=400, detail="已达成员上限")
+
+    # Check if already member
+    existing = db.execute(text("SELECT id FROM tenant_members WHERE tenant_id=:tid AND user_id=:uid"),
+                          {"tid": tenant_id, "uid": user_id}).fetchone()
+    if existing:
+        db.execute(text("UPDATE tenant_members SET status='active', role=:role WHERE tenant_id=:tid AND user_id=:uid"),
+                   {"tid": tenant_id, "uid": user_id, "role": role})
+    else:
+        db.execute(text("""
+            INSERT INTO tenant_members (id, tenant_id, user_id, role, status)
+            VALUES (:mid, :tid, :uid, :role, 'active')
+        """), {"mid": str(uuid.uuid4()), "tid": tenant_id, "uid": user_id, "role": role})
+
+    db.commit()
+    return {"code": 200, "data": {"message": "成员添加成功"}}
+
+
+@router.put("/{tenant_id}/members/{member_id}")
+async def update_member_role(
+    tenant_id: str,
+    member_id: str,
+    role: str = Query(..., description="新角色"),
+    db: Session = Depends(get_db),
+    user=Depends(get_current_user)
+):
+    """更新成员角色"""
+    db.execute(text("UPDATE tenant_members SET role=:role WHERE id=:mid AND tenant_id=:tid"),
+               {"role": role, "mid": member_id, "tid": tenant_id})
+    db.commit()
+    return {"code": 200, "data": {"message": "角色已更新"}}
+
+
+@router.delete("/{tenant_id}/members/{member_id}")
+async def remove_member(tenant_id: str, member_id: str, db: Session = Depends(get_db), user=Depends(get_current_user)):
+    """移除成员"""
+    db.execute(text("UPDATE tenant_members SET status='removed', removed_at=NOW() WHERE id=:mid AND tenant_id=:tid"),
+               {"mid": member_id, "tid": tenant_id})
+    db.commit()
+    return {"code": 200, "data": {"message": "成员已移除"}}
+
+
+# ============================================================
+# 配额管理
+# ============================================================
+
+@router.get("/{tenant_id}/quotas")
+async def get_quotas(tenant_id: str, db: Session = Depends(get_db), user=Depends(get_current_user)):
+    """获取租户配额使用情况"""
+    rows = db.execute(text("""
+        SELECT tq.*, t.max_members, t.max_storage_mb, t.max_api_calls_per_day
+        FROM tenant_quotas tq
+        RIGHT JOIN tenants t ON tq.tenant_id = t.id
+        WHERE t.id=:tid
+    """), {"tid": tenant_id}).fetchall()
+    
+    # Build quota summary
+    quotas = {
+        "members": {"used": 0, "limit": 0},
+        "storage": {"used": 0, "limit": 0},
+        "api_calls": {"used": 0, "limit": 0},
+    }
+    
+    # Get actual counts
+    member_count = db.execute(text("SELECT COUNT(*) FROM tenant_members WHERE tenant_id=:tid AND status='active'"),
+                              {"tid": tenant_id}).scalar()
+    tenant_info = db.execute(text("SELECT max_members, max_storage_mb, max_api_calls_per_day FROM tenants WHERE id=:tid"),
+                             {"tid": tenant_id}).fetchone()
+    
+    if tenant_info:
+        quotas["members"] = {"used": member_count, "limit": tenant_info[0]}
+        quotas["storage"] = {"used": 0, "limit": tenant_info[1]}
+        quotas["api_calls"] = {"used": 0, "limit": tenant_info[2]}
+
+    # Get quota records
+    qrows = db.execute(text("SELECT * FROM tenant_quotas WHERE tenant_id=:tid"), {"tid": tenant_id}).fetchall()
+    qcols = ['id','tenant_id','resource_type','used','quota_limit','period','reset_at','updated_at']
+    for r in qrows:
+        d = _row_to_dict(r, qcols)
+        rt = d['resource_type']
+        if rt in quotas:
+            quotas[rt]["used"] = d['used']
+            if d['quota_limit'] > 0:
+                quotas[rt]["limit"] = d['quota_limit']
+        else:
+            quotas[rt] = {"used": d['used'], "limit": d['quota_limit']}
+
+    return {"code": 200, "data": quotas}
+
+
+@router.put("/{tenant_id}/quotas")
+async def update_quotas(
+    tenant_id: str,
+    resource_type: str = Query(..., description="资源类型"),
+    quota_limit: int = Query(..., description="配额上限"),
+    db: Session = Depends(get_db),
+    user=Depends(get_current_user)
+):
+    """更新租户配额"""
+    existing = db.execute(text("SELECT id FROM tenant_quotas WHERE tenant_id=:tid AND resource_type=:rt"),
+                          {"tid": tenant_id, "rt": resource_type}).fetchone()
+    if existing:
+        db.execute(text("UPDATE tenant_quotas SET quota_limit=:ql WHERE tenant_id=:tid AND resource_type=:rt"),
+                   {"ql": quota_limit, "tid": tenant_id, "rt": resource_type})
+    else:
+        db.execute(text("""
+            INSERT INTO tenant_quotas (id, tenant_id, resource_type, used, quota_limit, period)
+            VALUES (:id, :tid, :rt, 0, :ql, 'total')
+        """), {"id": str(uuid.uuid4()), "tid": tenant_id, "rt": resource_type, "ql": quota_limit})
+    db.commit()
+    return {"code": 200, "data": {"message": "配额已更新"}}
+
+
+# ============================================================
+# 邀请管理
+# ============================================================
+
+@router.post("/{tenant_id}/invitations")
+async def create_invitation(
+    tenant_id: str,
+    email: str = Query(..., description="邀请邮箱"),
+    role: str = Query("member", description="角色"),
+    db: Session = Depends(get_db),
+    user=Depends(get_current_user)
+):
+    """创建租户邀请"""
+    import secrets
+    token = secrets.token_urlsafe(32)
+    expires = datetime.now() + timedelta(days=7)
+    
+    db.execute(text("""
+        INSERT INTO tenant_invitations (id, tenant_id, email, role, token, status, invited_by, expires_at)
+        VALUES (:id, :tid, :email, :role, :token, 'pending', :uid, :exp)
+    """), {
+        "id": str(uuid.uuid4()), "tid": tenant_id, "email": email,
+        "role": role, "token": token, "uid": user.id, "exp": expires
+    })
+    db.commit()
+    return {"code": 200, "data": {"token": token, "expires_at": _format_cst_time(expires)}}
+
+
+@router.get("/{tenant_id}/invitations")
+async def list_invitations(tenant_id: str, db: Session = Depends(get_db), user=Depends(get_current_user)):
+    """获取租户邀请列表"""
+    rows = db.execute(text("""
+        SELECT ti.*, u.username as invited_by_name
+        FROM tenant_invitations ti
+        LEFT JOIN users u ON ti.invited_by = u.id
+        WHERE ti.tenant_id=:tid
+        ORDER BY ti.created_at DESC
+    """), {"tid": tenant_id}).fetchall()
+    cols = ['id','tenant_id','email','role','token','status','invited_by','accepted_by',
+            'expires_at','created_at','invited_by_name']
+    items = [_row_to_dict(r, cols) for r in rows]
+    return {"code": 200, "data": items}
+
+
+# ============================================================
+# 统计
+# ============================================================
+
+@router.get("/stats/overview")
+async def tenant_stats(db: Session = Depends(get_db), user=Depends(get_current_user)):
+    """租户统计概览"""
+    total = db.execute(text("SELECT COUNT(*) FROM tenants WHERE status!='terminated'")).scalar()
+    active = db.execute(text("SELECT COUNT(*) FROM tenants WHERE status='active'")).scalar()
+    suspended = db.execute(text("SELECT COUNT(*) FROM tenants WHERE status='suspended'")).scalar()
+    total_members = db.execute(text("SELECT COUNT(*) FROM tenant_members WHERE status='active'")).scalar()
+    total_invitations = db.execute(text("SELECT COUNT(*) FROM tenant_invitations WHERE status='pending'")).scalar()
+    
+    return {"code": 200, "data": {
+        "total_tenants": total,
+        "active_tenants": active,
+        "suspended_tenants": suspended,
+        "total_members": total_members,
+        "pending_invitations": total_invitations,
+    }}

backend/python/main.py

@@ -34,7 +34,7 @@ sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
 
 from app.api import auth, chat, channels, knowledge, market, token_usage, payment, profile, notifications, assets, evolution
 
-from app.api.admin import dashboard, users, models, settings, payment_admin, services, membership_admin, ads, market_admin, logs, skills_admin, agents_admin, knowledge_admin, workflow_admin, storage_admin, automation_admin, mcp_admin, developer_admin, apps_admin, distro_admin, code_exec_admin, privacy_admin, im_bot_admin, promotion_admin, achievement_admin
+from app.api.admin import dashboard, users, models, settings, payment_admin, services, membership_admin, ads, market_admin, logs, skills_admin, agents_admin, knowledge_admin, workflow_admin, storage_admin, automation_admin, mcp_admin, developer_admin, apps_admin, distro_admin, code_exec_admin, privacy_admin, im_bot_admin, promotion_admin, achievement_admin , tenant_admin, billing_admin, analytics_admin
 from app.api.admin.developer_tools_admin import router as developer_tools_router
 from app.api.admin.mcp_market_admin import router as mcp_market_router
 from app.api.admin import asset_admin, achievement_admin
@@ -437,11 +437,10 @@ app.include_router(privacy_admin.router, prefix="/app/api/admin/privacy", tags=[
 app.include_router(im_bot_admin.router, prefix="/app/api/admin/im-bot", tags=["im-bot"])
 app.include_router(promotion_admin.router, prefix="/app/api/admin/promotion", tags=["promotion"])
 
-app.include_router(
+app.include_router(tenant_admin.router, prefix="/app/api/admin/tenant", tags=["tenant"])
-    achievement_admin.router,
+app.include_router(billing_admin.router, prefix="/app/api/admin/billing", tags=["billing"])
-    prefix="/app/api/admin/achievement",
+app.include_router(analytics_admin.router, prefix="/app/api/admin/analytics", tags=["analytics"])
-    tags=["achievement"]
+app.include_router(achievement_admin.router, prefix="/app/api/admin/achievement", tags=["achievement"])
-)
 
 
 

frontend/src/App.tsx

@@ -42,6 +42,9 @@ import PrivacySettings from '@/pages/admin/PrivacySettings';
 import ImBots from '@/pages/admin/ImBots';
 import Promotion from '@/pages/admin/Promotion';
 import Achievement from '@/pages/admin/Achievement';
+import Tenant from '@/pages/admin/Tenant';
+import Billing from '@/pages/admin/Billing';
+import Analytics from '@/pages/admin/Analytics';
 
 const App: React.FC = () => {
   const [user, setUser] = useState<User | null>(null);
@@ -127,6 +130,9 @@ const App: React.FC = () => {
           <Route path="privacy" element={<PrivacySettings />} />
           <Route path="promotion" element={<Promotion />} />
           <Route path="achievement" element={<Achievement />} />
+          <Route path="tenant" element={<Tenant />} />
+          <Route path="billing" element={<Billing />} />
+          <Route path="analytics" element={<Analytics />} />
         </Route>
 
         <Route path="*" element={<Navigate to="/" />} />

frontend/src/api/index.ts

@@ -378,48 +378,7 @@ export const adminAPI = {
     const qs = p.toString();
     return get<any>(`/admin/membership/user-memberships${qs ? `?${qs}` : ''}`);
   },
-  assignPlan: (userId: string, planId: string, days: number) => put<any>(`/admin/membership/users/${userId}/assign-plan?plan_id=${planId}&duration_days=${days}`),
+  assignPlan: (userId: string, planId: string, days: number) => put<any>(`/admin/membership/users/${userId}/assign-plan?plan_id=${t sp = new URLSearchParams();
-  revokeMembership: (userId: string) => put<any>(`/admin/membership/users/${userId}/revoke`),
-  getUserUsage: (userId: string) => get<any>(`/admin/membership/users/${userId}/usage`),
-  getMembershipStats: () => get<any>('/admin/membership/stats'),
-  // 广告管理
-  getAds: () => get<any[]>('/admin/ads/'),
-  addAd: (data: any) => post<any>('/admin/ads/', data),
-  updateAd: (id: string, data: any) => put<any>(`/admin/ads/${id}`, data),
-  deleteAd: (id: string) => del<any>(`/admin/ads/${id}`),
-  toggleAd: (id: string) => put<any>(`/admin/ads/${id}/toggle`),
-  // 应用市场审核
-  getPendingApps: () => get<any[]>('/admin/market/apps/pending'),
-      getMarketOverview: () => get<any>('/admin/market/analytics/overview'),
-        getTopApps: (metric: string, limit: number) => get<any>(`/admin/market/analytics/top-apps?metric=${metric}&limit=${limit}`),
-        getRecentReviews: () => get<any>('/admin/market/analytics/recent-reviews'),
-        getAdminMarketApps: (query: string) => get<any>(`/admin/market/apps?${query}`),
-        getMarketCategories: () => get<any>('/admin/market/categories'),
-        setFeaturedApp: (id: string, featured: boolean, order: number) => put<any>(`/admin/market/apps/${id}/featured`, { featured, featured_order: order }),
-        deleteMarketApp: (id: string) => del<any>(`/admin/market/apps/${id}`),
-        updateMarketApp: (id: string, data: any) => put<any>(`/admin/market/apps/${id}`, data),
-    approveApp: (id: string) => put<any>(`/admin/market/apps/${id}/approve`),
-  rejectApp: (id: string) => put<any>(`/admin/market/apps/${id.includes('?') ? id.split('?')[0] + '/reject?' + id.split('?')[1] : id + '/reject'}`),
-  getAdminApps: () => get<any[]>('/admin/market/apps'),
-  updateApp: (id: string, data: any) => put<any>(`/admin/market/apps/${id}`, data),
-  getCoupons: () => get<any[]>('/admin/market/coupons'),
-  addCoupon: (data: any) => post<any>('/admin/market/coupons', data),
-  updateCoupon: (id: string, data: any) => put<any>(`/admin/market/coupons/${id}`, data),
-  deleteCoupon: (id: string) => del<any>(`/admin/market/coupons/${id}`),
-  assignCoupon: (id: string, userId: string) => post<any>(`/admin/market/coupons/${id}/assign`, { user_id: userId }),
-  // 日志与风控
-  getOperationLogs: (params?: any) => {
-    const sp = new URLSearchParams();
-    if (params) Object.entries(params).forEach(([k, v]) => { if (v) sp.set(k, String(v)); });
-    return get<any[]>(`/admin/logs/operations${sp.toString() ? `?${sp.toString()}` : ''}`);
-  },
-  getTokenLogs: (params?: any) => {
-    const sp = new URLSearchParams();
-    if (params) Object.entries(params).forEach(([k, v]) => { if (v) sp.set(k, String(v)); });
-    return get<any[]>(`/admin/logs/token-logs${sp.toString() ? `?${sp.toString()}` : ''}`);
-  },
-  getPaymentLogs: (params?: any) => {
-    const sp = new URLSearchParams();
     if (params) Object.entries(params).forEach(([k, v]) => { if (v) sp.set(k, String(v)); });
     return get<any[]>(`/admin/logs/payment-logs${sp.toString() ? `?${sp.toString()}` : ''}`);
   },
@@ -908,4 +867,64 @@ export const evolutionAPI = {
   checkAchievementProgress: () => post<any>('/admin/achievement/check-progress'),
   getAchievementLeaderboard: (params?: string) => get<any>(`/admin/achievement/leaderboard${params || ''}`),
 
+  // 多租户管理
+  getTenants: (page?: number, keyword?: string, status?: string) => {
+    const sp = new URLSearchParams();
+    if (page) sp.set('page', String(page));
+    if (keyword) sp.set('keyword', keyword);
+    if (status) sp.set('status', status);
+    sp.set('page_size', '20');
+    return get<any>(`/admin/tenant/list${sp.toString() ? `?${sp.toString()}` : ''}`);
+  },
+  createTenant: (params: string) => post<any>(`/admin/tenant/create${params}`),
+  getTenantDetail: (id: string) => get<any>(`/admin/tenant/${id}`),
+  updateTenant: (id: string, params: string) => put<any>(`/admin/tenant/${id}${params}`),
+  deleteTenant: (id: string) => del<any>(`/admin/tenant/${id}`),
+  getTenantMembers: (tenantId: string, page?: number) => {
+    const sp = new URLSearchParams();
+    sp.set('page', String(page || 1));
+    sp.set('page_size', '100');
+    return get<any>(`/admin/tenant/${tenantId}/members?${sp.toString()}`);
+  },
+  addTenantMember: (tenantId: string, params: string) => post<any>(`/admin/tenant/${tenantId}/members/add${params}`),
+  updateTenantMember: (tenantId: string, memberId: string, params: string) => put<any>(`/admin/tenant/${tenantId}/members/${memberId}${params}`),
+  removeTenantMember: (tenantId: string, memberId: string) => del<any>(`/admin/tenant/${tenantId}/members/${memberId}`),
+  getTenantQuotas: (tenantId: string) => get<any>(`/admin/tenant/${tenantId}/quotas`),
+  updateTenantQuota: (tenantId: string, params: string) => put<any>(`/admin/tenant/${tenantId}/quotas${params}`),
+  getTenantInvitations: (tenantId: string) => get<any>(`/admin/tenant/${tenantId}/invitations`),
+  createTenantInvitation: (tenantId: string, params: string) => post<any>(`/admin/tenant/${tenantId}/invitations${params}`),
+  getTenantStats: () => get<any>('/admin/tenant/stats/overview'),
+
+  // 计费与支付
+  getBillingRules: (page?: number) => get<any>(`/admin/billing/rules?page=${page || 1}&page_size=100`),
+  createBillingRule: (params: string) => post<any>(`/admin/billing/rules/create${params}`),
+  updateBillingRule: (id: string, params: string) => put<any>(`/admin/billing/rules/${id}${params}`),
+  deleteBillingRule: (id: string) => del<any>(`/admin/billing/rules/${id}`),
+  getBillingPackages: () => get<any>('/admin/billing/packages'),
+  createBillingPackage: (params: string) => post<any>(`/admin/billing/packages/create${params}`),
+  updateBillingPackage: (id: string, params: string) => put<any>(`/admin/billing/packages/${id}${params}`),
+  deleteBillingPackage: (id: string) => del<any>(`/admin/billing/packages/${id}`),
+  getBillingTransactions: (page?: number) => get<any>(`/admin/billing/transactions?page=${page || 1}&page_size=20`),
+  getInvoices: (page?: number) => get<any>(`/admin/billing/invoices?page=${page || 1}&page_size=20`),
+  generateInvoice: (params: string) => post<any>(`/admin/billing/invoices/generate${params}`),
+  getPaymentConfigs: () => get<any>('/admin/billing/payment-configs'),
+  updatePaymentConfig: (id: string, params: string) => put<any>(`/admin/billing/payment-configs/${id}${params}`),
+  getBillingStats: () => get<any>('/admin/billing/stats/overview'),
+
+  // 数据分析
+  getAnalyticsOverview: (days?: number) => get<any>(`/admin/analytics/overview?days=${days || 30}`),
+  getAnalyticsApiTrends: (days?: number) => get<any>(`/admin/analytics/trends/api-calls?days=${days || 7}`),
+  getAnalyticsTokenTrends: (days?: number) => get<any>(`/admin/analytics/trends/tokens?days=${days || 7}`),
+  getAnalyticsUserTrends: (days?: number) => get<any>(`/admin/analytics/trends/users?days=${days || 30}`),
+  getAnalyticsRevenueTrends: (days?: number) => get<any>(`/admin/analytics/trends/revenue?days=${days || 30}`),
+  getAnalyticsModelUsage: (days?: number) => get<any>(`/admin/analytics/models/usage?days=${days || 30}`),
+  getAnalyticsDashboards: () => get<any>('/admin/analytics/dashboards'),
+  createAnalyticsDashboard: (params: string) => post<any>(`/admin/analytics/dashboards/create${params}`),
+  deleteAnalyticsDashboard: (id: string) => del<any>(`/admin/analytics/dashboards/${id}`),
+  getAnalyticsEvents: (params?: any) => {
+    const sp = new URLSearchParams();
+    if (params) Object.entries(params).forEach(([k, v]) => { if (v) sp.set(k, String(v)); });
+    return get<any>(`/admin/analytics/events${sp.toString() ? `?${sp.toString()}` : ''}`);
+  },
+
 };

frontend/src/components/layout/AdminLayout.tsx

@@ -22,6 +22,9 @@ const adminNavItems = [
   { path: '/admin/privacy', icon: 'privacy', label: '隐私与本地代理' },
     { path: '/admin/promotion', icon: 'promotion', label: '推广系统' },
     { path: '/admin/achievement', icon: 'achievement', label: '成就系统' },
+    { path: '/admin/tenant', icon: 'tenant', label: '多租户管理' },
+    { path: '/admin/billing', icon: 'billing', label: '计费与支付' },
+    { path: '/admin/analytics', icon: 'analytics', label: '数据分析' },
     { path: '/admin/im-bots', icon: 'imbot', label: 'IM 机器人' },
 ];
 
@@ -52,7 +55,24 @@ const adminIconPaths: Record<string, JSX.Element> = {
   </svg>,
   achievement: <svg width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="1.8" strokeLinecap="round" strokeLinejoin="round">
     <path d="M12 2l3.09 6.26L22 9.27l-5 4.87L18.18 22 12 18.27 7.82 22 7 14.14l-5-4.87 6.91-1.01L12 2z"/>
-  </svg>,};
+  </svg>,
+  tenant: <svg width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="1.8" strokeLinecap="round" strokeLinejoin="round">
+    <path d="M3 21V8l9-5 9 5v13"/>
+    <path d="M9 21v-6h6v6"/>
+    <path d="M3 13h18"/>
+  </svg>,
+  billing: <svg width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="1.8" strokeLinecap="round" strokeLinejoin="round">
+    <rect x="2" y="5" width="20" height="14" rx="2"/>
+    <line x1="2" y1="10" x2="22" y2="10"/>
+    <line x1="6" y1="15" x2="10" y2="15"/>
+  </svg>,
+  analytics: <svg width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="1.8" strokeLinecap="round" strokeLinejoin="round">
+    <line x1="18" y1="20" x2="18" y2="10"/>
+    <line x1="12" y1="20" x2="12" y2="4"/>
+    <line x1="6" y1="20" x2="6" y2="14"/>
+    <line x1="3" y1="20" x2="21" y2="20"/>
+  </svg>,
+};
 
 const AdminLayout: React.FC = () => {
   const { user, logout } = useAuth();

frontend/src/pages/admin/Analytics.tsx

@@ -0,0 +1,207 @@
+import { useState, useEffect, useCallback } from 'react';
+import { adminAPI } from '@/api';
+
+interface Overview {
+  total_users: number; active_users: number; new_users: number;
+  api_calls: number; avg_response_time: number; error_rate: number;
+  tokens_used: number; total_cost: number; total_chats: number; total_messages: number; revenue: number;
+}
+interface TrendItem { date: string; calls?: number; errors?: number; tokens?: number; new_users?: number; cumulative?: number; revenue?: number; consumption?: number; }
+interface ModelUsage { model_name: string; call_count: number; total_tokens: number; total_cost: number; avg_tokens: number; }
+
+const Analytics: React.FC = () => {
+  const [days, setDays] = useState(7);
+  const [loading, setLoading] = useState(false);
+  const [overview, setOverview] = useState<Overview | null>(null);
+  const [apiTrend, setApiTrend] = useState<TrendItem[]>([]);
+  const [tokenTrend, setTokenTrend] = useState<{ daily: any[]; model_distribution: Record<string, number> }>({ daily: [], model_distribution: {} });
+  const [userTrend, setUserTrend] = useState<TrendItem[]>([]);
+  const [revenueTrend, setRevenueTrend] = useState<TrendItem[]>([]);
+  const [modelUsage, setModelUsage] = useState<ModelUsage[]>([]);
+
+  const fetchAll = useCallback(async () => {
+    setLoading(true);
+    try {
+      const [ov, api, tok, usr, rev, mu] = await Promise.all([
+        adminAPI.getAnalyticsOverview(days),
+        adminAPI.getAnalyticsApiTrends(days),
+        adminAPI.getAnalyticsTokenTrends(days),
+        adminAPI.getAnalyticsUserTrends(days),
+        adminAPI.getAnalyticsRevenueTrends(days),
+        adminAPI.getAnalyticsModelUsage(days),
+      ]);
+      setOverview((ov as any)?.data || ov);
+      setApiTrend((api as any)?.data || []);
+      const td = (tok as any)?.data || { daily: [], model_distribution: {} };
+      setTokenTrend(td);
+      setUserTrend((usr as any)?.data || []);
+      setRevenueTrend((rev as any)?.data || []);
+      setModelUsage((mu as any)?.data || []);
+    } catch (e) { console.error('fetchAnalytics:', e); }
+    setLoading(false);
+  }, [days]);
+
+  useEffect(() => { fetchAll(); }, [fetchAll]);
+
+  const renderBar = (data: TrendItem[], key: string, color: string, label: string) => {
+    if (!data.length) return <div style={{ textAlign: 'center', padding: '40px', color: '#64748b' }}>暂无数据</div>;
+    const values = data.map((d: any) => d[key] || 0);
+    const max = Math.max(...values, 1);
+    return (
+      <div style={{ display: 'flex', alignItems: 'flex-end', gap: '8px', height: '180px', padding: '0 16px' }}>
+        {data.map((d: any, i) => {
+          const v = d[key] || 0;
+          const h = (v / max) * 140;
+          return (
+            <div key={i} style={{ flex: 1, display: 'flex', flexDirection: 'column', alignItems: 'center', minWidth: '40px' }}>
+              <div style={{ fontSize: '10px', color: '#94a3b8', marginBottom: '4px' }}>{v > 9999 ? `${(v/1000).toFixed(0)}k` : v}</div>
+              <div style={{ width: '100%', height: `${h}px`, background: `linear-gradient(180deg, ${color}, ${color}aa)`, borderRadius: '4px 4px 0 0', transition: 'height 0.3s' }} />
+              <div style={{ fontSize: '10px', color: '#64748b', marginTop: '6px' }}>{d.date?.substring(5)}</div>
+            </div>
+          );
+        })}
+      </div>
+    );
+  };
+
+  const renderLine = (data: TrendItem[], key: string, color: string) => {
+    if (!data.length) return <div style={{ textAlign: 'center', padding: '40px', color: '#64748b' }}>暂无数据</div>;
+    const values = data.map((d: any) => d[key] || 0);
+    const max = Math.max(...values, 1);
+    const w = 100 / (data.length - 1 || 1);
+    const points = data.map((d: any, i) => `${i * w},${100 - ((d[key] || 0) / max) * 90}`).join(' ');
+    return (
+      <svg viewBox="0 0 100 100" preserveAspectRatio="none" style={{ width: '100%', height: '180px' }}>
+        <polyline points={points} fill="none" stroke={color} strokeWidth="1.5" />
+        {data.map((d: any, i) => (
+          <circle key={i} cx={i * w} cy={100 - ((d[key] || 0) / max) * 90} r="1" fill={color} />
+        ))}
+      </svg>
+    );
+  };
+
+  const statCards = overview ? [
+    { label: '总用户数', value: overview.total_users, color: '#6366f1', icon: 'U' },
+    { label: '活跃用户', value: overview.active_users, color: '#10b981', icon: 'A' },
+    { label: '新增用户', value: overview.new_users, color: '#3b82f6', icon: '+' },
+    { label: 'API调用数', value: overview.api_calls, color: '#f59e0b', icon: 'API' },
+    { label: 'Token用量', value: overview.tokens_used, color: '#ec4899', icon: 'T' },
+    { label: '总费用(元)', value: overview.total_cost?.toFixed(2), color: '#ef4444', icon: '¥' },
+    { label: '对话总数', value: overview.total_chats, color: '#8b5cf6', icon: 'C' },
+    { label: '消息总数', value: overview.total_messages, color: '#06b6d4', icon: 'M' },
+  ] : [];
+
+  return (
+    <div style={{ padding: '24px', color: '#e2e8f0' }}>
+      <div style={{ display: 'flex', justifyContent: 'space-between', alignItems: 'center', marginBottom: '24px' }}>
+        <h1 style={{ fontSize: '24px', fontWeight: 700 }}>数据分析面板</h1>
+        <div style={{ display: 'flex', gap: '8px' }}>
+          {[7, 14, 30, 90].map(d => (
+            <button key={d} onClick={() => setDays(d)} style={{ padding: '6px 16px', borderRadius: '8px', border: 'none', cursor: 'pointer',
+              background: days === d ? '#6366f1' : '#1e293b', color: days === d ? '#fff' : '#94a3b8', fontWeight: 600, fontSize: '13px' }}>{d}天</button>
+          ))}
+        </div>
+      </div>
+
+      {loading ? <div style={{ textAlign: 'center', padding: '80px', color: '#64748b' }}>加载中...</div> : (
+        <>
+          {/* Stats grid */}
+          <div style={{ display: 'grid', gridTemplateColumns: 'repeat(4, 1fr)', gap: '16px', marginBottom: '24px' }}>
+            {statCards.map((s, i) => (
+              <div key={i} style={{ background: '#1e293b', borderRadius: '12px', padding: '20px', border: `1px solid ${s.color}33`, display: 'flex', alignItems: 'center', gap: '16px' }}>
+                <div style={{ width: '48px', height: '48px', borderRadius: '12px', background: `${s.color}22`, color: s.color, display: 'flex', alignItems: 'center', justifyContent: 'center', fontSize: '18px', fontWeight: 800 }}>{s.icon}</div>
+                <div>
+                  <div style={{ fontSize: '24px', fontWeight: 800, color: s.color }}>{typeof s.value === 'number' ? s.value.toLocaleString() : s.value}</div>
+                  <div style={{ fontSize: '12px', color: '#94a3b8', marginTop: '2px' }}>{s.label}</div>
+                </div>
+              </div>
+            ))}
+          </div>
+
+          {/* Charts grid */}
+          <div style={{ display: 'grid', gridTemplateColumns: '1fr 1fr', gap: '16px', marginBottom: '16px' }}>
+            <div style={{ background: '#1e293b', borderRadius: '12px', padding: '24px' }}>
+              <h3 style={{ fontSize: '15px', fontWeight: 600, marginBottom: '16px' }}>API调用趋势 ({days}天)</h3>
+              {renderBar(apiTrend, 'calls', '#f59e0b', '调用次数')}
+            </div>
+            <div style={{ background: '#1e293b', borderRadius: '12px', padding: '24px' }}>
+              <h3 style={{ fontSize: '15px', fontWeight: 600, marginBottom: '16px' }}>Token使用趋势 ({days}天)</h3>
+              {renderLine(tokenTrend.daily, 'total_tokens', '#ec4899')}
+            </div>
+          </div>
+
+          <div style={{ display: 'grid', gridTemplateColumns: '1fr 1fr', gap: '16px', marginBottom: '16px' }}>
+            <div style={{ background: '#1e293b', borderRadius: '12px', padding: '24px' }}>
+              <h3 style={{ fontSize: '15px', fontWeight: 600, marginBottom: '16px' }}>用户增长 ({days}天)</h3>
+              {renderBar(userTrend, 'new_users', '#3b82f6', '新增用户')}
+            </div>
+            <div style={{ background: '#1e293b', borderRadius: '12px', padding: '24px' }}>
+              <h3 style={{ fontSize: '15px', fontWeight: 600, marginBottom: '16px' }}>收入趋势 ({days}天)</h3>
+              {renderBar(revenueTrend, 'revenue', '#10b981', '收入')}
+            </div>
+          </div>
+
+          {/* Model usage */}
+          <div style={{ background: '#1e293b', borderRadius: '12px', padding: '24px' }}>
+            <h3 style={{ fontSize: '15px', fontWeight: 600, marginBottom: '20px' }}>模型使用分析 ({days}天)</h3>
+            {modelUsage.length > 0 ? (
+              <table style={{ width: '100%', borderCollapse: 'collapse' }}>
+                <thead><tr style={{ borderBottom: '2px solid #334155' }}>
+                  {['模型', '调用次数', '总Tokens', '平均Tokens', '费用(元)'].map(h => (
+                    <th key={h} style={{ padding: '10px 16px', textAlign: 'left', fontSize: '13px', color: '#94a3b8', fontWeight: 600 }}>{h}</th>
+                  ))}
+                </tr></thead>
+                <tbody>
+                  {modelUsage.map((m, i) => (
+                    <tr key={i} style={{ borderBottom: '1px solid #334155' }}>
+                      <td style={{ padding: '10px 16px', fontSize: '14px', fontWeight: 600 }}>{m.model_name}</td>
+                      <td style={{ padding: '10px 16px', fontSize: '14px' }}>{m.call_count.toLocaleString()}</td>
+                      <td style={{ padding: '10px 16px', fontSize: '14px', color: '#ec4899', fontWeight: 600 }}>{m.total_tokens.toLocaleString()}</td>
+                      <td style={{ padding: '10px 16px', fontSize: '13px', color: '#94a3b8' }}>{m.avg_tokens.toLocaleString()}</td>
+                      <td style={{ padding: '10px 16px', fontSize: '14px', color: '#ef4444' }}>¥{m.total_cost.toFixed(4)}</td>
+                    </tr>
+                  ))}
+                </tbody>
+              </table>
+            ) : <div style={{ textAlign: 'center', padding: '40px', color: '#64748b' }}>暂无模型使用数据</div>}
+          </div>
+
+          {/* Model distribution pie (CSS) */}
+          {Object.keys(tokenTrend.model_distribution || {}).length > 0 && (
+            <div style={{ background: '#1e293b', borderRadius: '12px', padding: '24px', marginTop: '16px' }}>
+              <h3 style={{ fontSize: '15px', fontWeight: 600, marginBottom: '20px' }}>模型使用分布</h3>
+              <div style={{ display: 'flex', gap: '24px', alignItems: 'center' }}>
+                <div style={{ display: 'flex', borderRadius: '50%', overflow: 'hidden', width: '160px', height: '160px' }}>
+                  {(() => {
+                    const entries = Object.entries(tokenTrend.model_distribution);
+                    const total = entries.reduce((s, [, v]) => s + v, 1);
+                    const colors = ['#6366f1', '#10b981', '#f59e0b', '#ec4899', '#3b82f6', '#8b5cf6', '#06b6d4', '#ef4444'];
+                    return entries.map(([model, val], i) => {
+                      const pct = (val / total) * 100;
+                      return <div key={model} style={{ width: `${pct}%`, background: colors[i % colors.length] }} title={`${model}: ${pct.toFixed(1)}%`} />;
+                    });
+                  })()}
+                </div>
+                <div style={{ flex: 1 }}>
+                  {Object.entries(tokenTrend.model_distribution).map(([model, val], i) => {
+                    const colors = ['#6366f1', '#10b981', '#f59e0b', '#ec4899', '#3b82f6', '#8b5cf6', '#06b6d4', '#ef4444'];
+                    const total = Object.values(tokenTrend.model_distribution).reduce((s, v) => s + v, 1);
+                    return (
+                      <div key={model} style={{ display: 'flex', alignItems: 'center', gap: '8px', marginBottom: '8px' }}>
+                        <div style={{ width: '12px', height: '12px', borderRadius: '3px', background: colors[i % colors.length] }} />
+                        <span style={{ fontSize: '13px', color: '#e2e8f0' }}>{model}</span>
+                        <span style={{ fontSize: '13px', color: '#94a3b8', marginLeft: 'auto' }}>{((val / total) * 100).toFixed(1)}%</span>
+                      </div>
+                    );
+                  })}
+                </div>
+              </div>
+            </div>
+          )}
+        </>
+      )}
+    </div>
+  );
+};
+
+export default Analytics;

frontend/src/pages/admin/Billing.tsx

@@ -0,0 +1,209 @@
+import { useState, useEffect, useCallback } from 'react';
+import { adminAPI } from '@/api';
+
+interface Rule { id: string; name: string; billing_type: string; model_name: string; rate: number; free_quota: number; status: string; }
+interface Package { id: string; name: string; tokens: number; bonus_tokens: number; price: number; original_price: number; is_popular: number; status: string; }
+interface Transaction { id: string; user_id: string; username: string; transaction_type: string; amount: number; tokens: number; status: string; created_at: string; description: string; }
+interface Stats { total_revenue: number; total_consumption: number; total_transactions: number; pending_invoices: number; active_rules: number; active_packages: number; daily_revenue_7d: { date: string; revenue: number }[]; }
+
+const Billing: React.FC = () => {
+  const [tab, setTab] = useState<'overview' | 'rules' | 'packages' | 'transactions'>('overview');
+  const [rules, setRules] = useState<Rule[]>([]);
+  const [packages, setPackages] = useState<Package[]>([]);
+  const [transactions, setTransactions] = useState<Transaction[]>([]);
+  const [total, setTotal] = useState(0);
+  const [page, setPage] = useState(1);
+  const [stats, setStats] = useState<Stats | null>(null);
+  const [loading, setLoading] = useState(false);
+
+  const fetchRules = useCallback(async () => {
+    setLoading(true);
+    try {
+      const res = await adminAPI.getBillingRules();
+      const d = (res as any)?.data || res;
+      setRules(d?.items || []);
+    } catch (e) { console.error('fetchRules:', e); }
+    setLoading(false);
+  }, []);
+
+  const fetchPackages = useCallback(async () => {
+    try {
+      const res = await adminAPI.getBillingPackages();
+      const d = (res as any)?.data || res;
+      setPackages(Array.isArray(d) ? d : d?.items || []);
+    } catch (e) { console.error('fetchPackages:', e); }
+  }, []);
+
+  const fetchTransactions = useCallback(async () => {
+    setLoading(true);
+    try {
+      const res = await adminAPI.getBillingTransactions(page);
+      const d = (res as any)?.data || res;
+      setTransactions(d?.items || []);
+      setTotal(d?.total || 0);
+    } catch (e) { console.error('fetchTransactions:', e); }
+    setLoading(false);
+  }, [page]);
+
+  const fetchStats = useCallback(async () => {
+    try {
+      const res = await adminAPI.getBillingStats();
+      setStats((res as any)?.data || res);
+    } catch (e) { console.error('fetchStats:', e); }
+  }, []);
+
+  useEffect(() => { fetchStats(); }, [fetchStats]);
+  useEffect(() => { if (tab === 'rules') fetchRules(); }, [tab, fetchRules]);
+  useEffect(() => { if (tab === 'packages') fetchPackages(); }, [tab, fetchPackages]);
+  useEffect(() => { if (tab === 'transactions') fetchTransactions(); }, [tab, fetchTransactions, page]);
+
+  const typeColors: Record<string, string> = { per_token: '#6366f1', per_call: '#3b82f6', per_month: '#10b981', hybrid: '#f59e0b' };
+  const txColors: Record<string, string> = { recharge: '#10b981', consumption: '#ef4444', refund: '#f59e0b', gift: '#ec4899' };
+
+  return (
+    <div style={{ padding: '24px', color: '#e2e8f0' }}>
+      <h1 style={{ fontSize: '24px', fontWeight: 700, marginBottom: '24px' }}>计费与支付管理</h1>
+
+      {/* Stats */}
+      {stats && (
+        <div style={{ display: 'grid', gridTemplateColumns: 'repeat(4, 1fr)', gap: '16px', marginBottom: '24px' }}>
+          {[
+            { label: '总收入(元)', value: stats.total_revenue?.toFixed(2) || '0.00', color: '#10b981' },
+            { label: '总消费(元)', value: stats.total_consumption?.toFixed(2) || '0.00', color: '#ef4444' },
+            { label: '交易笔数', value: stats.total_transactions || 0, color: '#3b82f6' },
+            { label: '待付账单', value: stats.pending_invoices || 0, color: '#f59e0b' },
+          ].map((s, i) => (
+            <div key={i} style={{ background: '#1e293b', borderRadius: '12px', padding: '20px', border: `1px solid ${s.color}33` }}>
+              <div style={{ fontSize: '28px', fontWeight: 800, color: s.color }}>{s.value}</div>
+              <div style={{ fontSize: '13px', color: '#94a3b8', marginTop: '4px' }}>{s.label}</div>
+            </div>
+          ))}
+        </div>
+      )}
+
+      {/* Tabs */}
+      <div style={{ display: 'flex', gap: '8px', marginBottom: '20px' }}>
+        {([['overview', '概览'], ['rules', '计费规则'], ['packages', '充值套餐'], ['transactions', '交易记录']] as const).map(([k, label]) => (
+          <button key={k} onClick={() => setTab(k)}
+            style={{ padding: '8px 20px', borderRadius: '8px', border: 'none', cursor: 'pointer',
+              background: tab === k ? '#6366f1' : '#1e293b', color: tab === k ? '#fff' : '#94a3b8', fontWeight: 600, fontSize: '14px' }}>{label}</button>
+        ))}
+      </div>
+
+      {/* Overview */}
+      {tab === 'overview' && stats && (
+        <div style={{ background: '#1e293b', borderRadius: '12px', padding: '24px' }}>
+          <h3 style={{ fontSize: '16px', fontWeight: 600, marginBottom: '20px' }}>近7天收入趋势</h3>
+          {stats.daily_revenue_7d && stats.daily_revenue_7d.length > 0 ? (
+            <div style={{ display: 'flex', alignItems: 'flex-end', gap: '12px', height: '200px', padding: '0 20px' }}>
+              {stats.daily_revenue_7d.map((d, i) => {
+                const max = Math.max(...stats.daily_revenue_7d.map(r => r.revenue), 1);
+                const h = (d.revenue / max) * 160;
+                return (
+                  <div key={i} style={{ flex: 1, display: 'flex', flexDirection: 'column', alignItems: 'center' }}>
+                    <div style={{ fontSize: '11px', color: '#94a3b8', marginBottom: '4px' }}>¥{d.revenue.toFixed(0)}</div>
+                    <div style={{ width: '100%', height: `${h}px`, background: 'linear-gradient(180deg, #6366f1, #818cf8)', borderRadius: '4px 4px 0 0' }} />
+                    <div style={{ fontSize: '11px', color: '#64748b', marginTop: '6px' }}>{d.date.substring(5)}</div>
+                  </div>
+                );
+              })}
+            </div>
+          ) : <div style={{ textAlign: 'center', padding: '40px', color: '#64748b' }}>暂无收入数据</div>}
+        </div>
+      )}
+
+      {/* Rules */}
+      {tab === 'rules' && (
+        <table style={{ width: '100%', borderCollapse: 'collapse', background: '#1e293b', borderRadius: '12px', overflow: 'hidden' }}>
+          <thead><tr style={{ background: '#0f172a' }}>
+            {['规则名称', '计费类型', '关联模型', '单价', '免费额度', '状态'].map(h => (
+              <th key={h} style={{ padding: '12px 16px', textAlign: 'left', fontSize: '13px', color: '#94a3b8', fontWeight: 600 }}>{h}</th>
+            ))}
+          </tr></thead>
+          <tbody>
+            {rules.map(r => (
+              <tr key={r.id} style={{ borderBottom: '1px solid #334155' }}>
+                <td style={{ padding: '12px 16px', fontSize: '14px', fontWeight: 600 }}>{r.name}</td>
+                <td style={{ padding: '12px 16px' }}>
+                  <span style={{ padding: '2px 10px', borderRadius: '12px', fontSize: '12px', fontWeight: 600, background: `${typeColors[r.billing_type]}22`, color: typeColors[r.billing_type] }}>{r.billing_type}</span>
+                </td>
+                <td style={{ padding: '12px 16px', fontSize: '13px', color: '#94a3b8' }}>{r.model_name || '通用'}</td>
+                <td style={{ padding: '12px 16px', fontSize: '14px' }}>¥{r.rate.toFixed(6)}</td>
+                <td style={{ padding: '12px 16px', fontSize: '13px', color: '#94a3b8' }}>{r.free_quota?.toLocaleString() || 0}</td>
+                <td style={{ padding: '12px 16px' }}>
+                  <span style={{ color: r.status === 'active' ? '#10b981' : '#64748b', fontSize: '13px' }}>{r.status === 'active' ? '启用' : '停用'}</span>
+                </td>
+              </tr>
+            ))}
+          </tbody>
+        </table>
+      )}
+
+      {/* Packages */}
+      {tab === 'packages' && (
+        <div style={{ display: 'grid', gridTemplateColumns: 'repeat(4, 1fr)', gap: '16px' }}>
+          {packages.map(p => (
+            <div key={p.id} style={{ background: '#1e293b', borderRadius: '16px', padding: '24px', position: 'relative', border: p.is_popular ? '2px solid #6366f1' : '1px solid #334155' }}>
+              {p.is_popular === 1 && (
+                <div style={{ position: 'absolute', top: '-10px', right: '16px', background: '#6366f1', color: '#fff', padding: '2px 12px', borderRadius: '12px', fontSize: '11px', fontWeight: 700 }}>推荐</div>
+              )}
+              <h3 style={{ fontSize: '18px', fontWeight: 700, marginBottom: '8px' }}>{p.name}</h3>
+              <p style={{ fontSize: '13px', color: '#94a3b8', marginBottom: '16px' }}>{p.description || ''}</p>
+              <div style={{ fontSize: '32px', fontWeight: 800, color: '#6366f1' }}>¥{p.price}</div>
+              {p.original_price && <div style={{ fontSize: '14px', color: '#64748b', textDecoration: 'line-through' }}>¥{p.original_price}</div>}
+              <div style={{ marginTop: '16px', paddingTop: '16px', borderTop: '1px solid #334155', fontSize: '13px', color: '#94a3b8' }}>
+                <div>主额度: <span style={{ color: '#e2e8f0', fontWeight: 600 }}>{p.tokens.toLocaleString()}</span> tokens</div>
+                {p.bonus_tokens > 0 && <div>赠送: <span style={{ color: '#10b981', fontWeight: 600 }}>{p.bonus_tokens.toLocaleString()}</span> tokens</div>}
+              </div>
+              <div style={{ marginTop: '12px', fontSize: '12px' }}>
+                <span style={{ color: p.status === 'active' ? '#10b981' : '#64748b' }}>{p.status === 'active' ? '● 在售' : '○ 已停用'}</span>
+              </div>
+            </div>
+          ))}
+        </div>
+      )}
+
+      {/* Transactions */}
+      {tab === 'transactions' && (
+        <>
+          {loading ? <div style={{ textAlign: 'center', padding: '40px', color: '#64748b' }}>加载中...</div> : (
+            <table style={{ width: '100%', borderCollapse: 'collapse', background: '#1e293b', borderRadius: '12px', overflow: 'hidden' }}>
+              <thead><tr style={{ background: '#0f172a' }}>
+                {['时间', '用户', '类型', '金额(元)', 'Tokens', '状态', '描述'].map(h => (
+                  <th key={h} style={{ padding: '12px 16px', textAlign: 'left', fontSize: '13px', color: '#94a3b8', fontWeight: 600 }}>{h}</th>
+                ))}
+              </tr></thead>
+              <tbody>
+                {transactions.map(t => (
+                  <tr key={t.id} style={{ borderBottom: '1px solid #334155' }}>
+                    <td style={{ padding: '12px 16px', fontSize: '13px', color: '#64748b' }}>{t.created_at?.substring(0, 16)}</td>
+                    <td style={{ padding: '12px 16px', fontSize: '14px' }}>{t.username || t.user_id.substring(0, 8)}</td>
+                    <td style={{ padding: '12px 16px' }}>
+                      <span style={{ padding: '2px 10px', borderRadius: '12px', fontSize: '12px', fontWeight: 600, background: `${txColors[t.transaction_type]}22`, color: txColors[t.transaction_type] }}>{t.transaction_type}</span>
+                    </td>
+                    <td style={{ padding: '12px 16px', fontSize: '14px', fontWeight: 600, color: t.transaction_type === 'recharge' ? '#10b981' : '#ef4444' }}>{t.amount > 0 ? '+' : ''}{t.amount.toFixed(2)}</td>
+                    <td style={{ padding: '12px 16px', fontSize: '13px', color: '#94a3b8' }}>{t.tokens?.toLocaleString() || '-'}</td>
+                    <td style={{ padding: '12px 16px' }}>
+                      <span style={{ color: t.status === 'completed' ? '#10b981' : '#f59e0b', fontSize: '13px' }}>{t.status}</span>
+                    </td>
+                    <td style={{ padding: '12px 16px', fontSize: '13px', color: '#64748b' }}>{t.description || '-'}</td>
+                  </tr>
+                ))}
+                {transactions.length === 0 && <tr><td colSpan={7} style={{ padding: '40px', textAlign: 'center', color: '#64748b' }}>暂无交易记录</td></tr>}
+              </tbody>
+            </table>
+          )}
+          {total > 20 && (
+            <div style={{ display: 'flex', justifyContent: 'center', gap: '8px', marginTop: '20px' }}>
+              <button onClick={() => setPage(p => Math.max(1, p - 1))} disabled={page <= 1} style={{ padding: '6px 16px', borderRadius: '6px', border: '1px solid #475569', background: '#1e293b', color: '#94a3b8', cursor: page <= 1 ? 'not-allowed' : 'pointer' }}>上一页</button>
+              <span style={{ padding: '6px 16px', color: '#94a3b8' }}>第 {page} 页</span>
+              <button onClick={() => setPage(p => p + 1)} disabled={page * 20 >= total} style={{ padding: '6px 16px', borderRadius: '6px', border: '1px solid #475569', background: '#1e293b', color: '#94a3b8', cursor: page * 20 >= total ? 'not-allowed' : 'pointer' }}>下一页</button>
+            </div>
+          )}
+        </>
+      )}
+    </div>
+  );
+};
+
+export default Billing;

frontend/src/pages/admin/Tenant.tsx

@@ -0,0 +1,235 @@
+import { useState, useEffect, useCallback } from 'react';
+import { adminAPI } from '@/api';
+
+interface Tenant {
+  id: string; name: string; slug: string; logo: string; description: string;
+  status: string; max_members: number; max_storage_mb: number;
+  max_api_calls_per_day: number; member_count?: number; created_at: string; expire_at?: string;
+}
+interface Member { id: string; user_id: string; username: string; email: string; role: string; status: string; joined_at: string; avatar?: string; }
+interface Stats { total_tenants: number; active_tenants: number; suspended_tenants: number; total_members: number; pending_invitations: number; }
+
+const Tenant: React.FC = () => {
+  const [tab, setTab] = useState<'list' | 'members' | 'stats'>('list');
+  const [tenants, setTenants] = useState<Tenant[]>([]);
+  const [total, setTotal] = useState(0);
+  const [page, setPage] = useState(1);
+  const [loading, setLoading] = useState(false);
+  const [stats, setStats] = useState<Stats | null>(null);
+  const [members, setMembers] = useState<Member[]>([]);
+  const [selectedTenant, setSelectedTenant] = useState<string>('');
+  const [showCreate, setShowCreate] = useState(false);
+  const [form, setForm] = useState({ name: '', slug: '', description: '', max_members: 10, max_storage_mb: 10240, max_api_calls_per_day: 10000 });
+
+  const fetchTenants = useCallback(async () => {
+    setLoading(true);
+    try {
+      const res = await adminAPI.getTenants(page);
+      const d = (res as any)?.data || res;
+      setTenants(d?.items || []);
+      setTotal(d?.total || 0);
+    } catch (e) { console.error('fetchTenants:', e); }
+    setLoading(false);
+  }, [page]);
+
+  const fetchStats = useCallback(async () => {
+    try {
+      const res = await adminAPI.getTenantStats();
+      setStats((res as any)?.data || res);
+    } catch (e) { console.error('fetchStats:', e); }
+  }, []);
+
+  const fetchMembers = useCallback(async () => {
+    if (!selectedTenant) return;
+    try {
+      const res = await adminAPI.getTenantMembers(selectedTenant);
+      const d = (res as any)?.data || res;
+      setMembers(d?.items || []);
+    } catch (e) { console.error('fetchMembers:', e); }
+  }, [selectedTenant]);
+
+  useEffect(() => { fetchTenants(); fetchStats(); }, [fetchTenants, fetchStats]);
+  useEffect(() => { if (tab === 'members' && selectedTenant) fetchMembers(); }, [tab, selectedTenant, fetchMembers]);
+
+  const handleCreate = async () => {
+    try {
+      const params = `?name=${encodeURIComponent(form.name)}&slug=${encodeURIComponent(form.slug)}&description=${encodeURIComponent(form.description)}&max_members=${form.max_members}&max_storage_mb=${form.max_storage_mb}&max_api_calls_per_day=${form.max_api_calls_per_day}`;
+      await adminAPI.createTenant(params);
+      setShowCreate(false);
+      setForm({ name: '', slug: '', description: '', max_members: 10, max_storage_mb: 10240, max_api_calls_per_day: 10000 });
+      fetchTenants();
+    } catch (e) { console.error('create:', e); }
+  };
+
+  const statusColors: Record<string, string> = { active: '#10b981', suspended: '#f59e0b', terminated: '#ef4444' };
+  const roleColors: Record<string, string> = { owner: '#a78bfa', admin: '#60a5fa', member: '#94a3b8', viewer: '#64748b' };
+
+  return (
+    <div style={{ padding: '24px', color: '#e2e8f0' }}>
+      <h1 style={{ fontSize: '24px', fontWeight: 700, marginBottom: '24px' }}>多租户管理</h1>
+
+      {/* Stats cards */}
+      {stats && (
+        <div style={{ display: 'grid', gridTemplateColumns: 'repeat(5, 1fr)', gap: '16px', marginBottom: '24px' }}>
+          {[
+            { label: '总租户数', value: stats.total_tenants, color: '#6366f1' },
+            { label: '活跃租户', value: stats.active_tenants, color: '#10b981' },
+            { label: '已暂停', value: stats.suspended_tenants, color: '#f59e0b' },
+            { label: '总成员数', value: stats.total_members, color: '#3b82f6' },
+            { label: '待处理邀请', value: stats.pending_invitations, color: '#ec4899' },
+          ].map((s, i) => (
+            <div key={i} style={{ background: '#1e293b', borderRadius: '12px', padding: '20px', border: `1px solid ${s.color}33` }}>
+              <div style={{ fontSize: '32px', fontWeight: 800, color: s.color }}>{s.value}</div>
+              <div style={{ fontSize: '13px', color: '#94a3b8', marginTop: '4px' }}>{s.label}</div>
+            </div>
+          ))}
+        </div>
+      )}
+
+      {/* Tabs */}
+      <div style={{ display: 'flex', gap: '8px', marginBottom: '20px' }}>
+        {([['list', '租户列表'], ['members', '成员管理'], ['stats', '统计详情']] as const).map(([k, label]) => (
+          <button key={k} onClick={() => setTab(k)}
+            style={{ padding: '8px 20px', borderRadius: '8px', border: 'none', cursor: 'pointer',
+              background: tab === k ? '#6366f1' : '#1e293b', color: tab === k ? '#fff' : '#94a3b8',
+              fontWeight: 600, fontSize: '14px' }}>{label}</button>
+        ))}
+        {tab === 'list' && (
+          <button onClick={() => setShowCreate(true)} style={{ marginLeft: 'auto', padding: '8px 20px', borderRadius: '8px',
+            border: 'none', cursor: 'pointer', background: '#6366f1', color: '#fff', fontWeight: 600, fontSize: '14px' }}>
+            + 创建租户
+          </button>
+        )}
+      </div>
+
+      {/* Tab content */}
+      {tab === 'list' && (
+        <div>
+          {loading ? <div style={{ textAlign: 'center', padding: '40px', color: '#64748b' }}>加载中...</div> : (
+            <table style={{ width: '100%', borderCollapse: 'collapse', background: '#1e293b', borderRadius: '12px', overflow: 'hidden' }}>
+              <thead>
+                <tr style={{ background: '#0f172a' }}>
+                  {['租户名称', '标识', '状态', '成员数', '存储上限', 'API/天', '创建时间', '操作'].map(h => (
+                    <th key={h} style={{ padding: '12px 16px', textAlign: 'left', fontSize: '13px', color: '#94a3b8', fontWeight: 600 }}>{h}</th>
+                  ))}
+                </tr>
+              </thead>
+              <tbody>
+                {tenants.map(t => (
+                  <tr key={t.id} style={{ borderBottom: '1px solid #334155' }}>
+                    <td style={{ padding: '12px 16px', fontSize: '14px', fontWeight: 600 }}>{t.name}</td>
+                    <td style={{ padding: '12px 16px', fontSize: '13px', color: '#94a3b8' }}>{t.slug}</td>
+                    <td style={{ padding: '12px 16px' }}>
+                      <span style={{ padding: '2px 10px', borderRadius: '12px', fontSize: '12px', fontWeight: 600,
+                        background: `${statusColors[t.status]}22`, color: statusColors[t.status] }}>{t.status}</span>
+                    </td>
+                    <td style={{ padding: '12px 16px', fontSize: '14px' }}>{t.member_count ?? '-'}</td>
+                    <td style={{ padding: '12px 16px', fontSize: '13px', color: '#94a3b8' }}>{(t.max_storage_mb / 1024).toFixed(1)} GB</td>
+                    <td style={{ padding: '12px 16px', fontSize: '13px', color: '#94a3b8' }}>{t.max_api_calls_per_day.toLocaleString()}</td>
+                    <td style={{ padding: '12px 16px', fontSize: '13px', color: '#64748b' }}>{t.created_at?.substring(0, 10)}</td>
+                    <td style={{ padding: '12px 16px' }}>
+                      <button onClick={() => { setSelectedTenant(t.id); setTab('members'); }}
+                        style={{ padding: '4px 12px', borderRadius: '6px', border: '1px solid #475569',
+                          background: 'transparent', color: '#94a3b8', cursor: 'pointer', fontSize: '12px' }}>管理</button>
+                    </td>
+                  </tr>
+                ))}
+              </tbody>
+            </table>
+          )}
+          {total > 20 && (
+            <div style={{ display: 'flex', justifyContent: 'center', gap: '8px', marginTop: '20px' }}>
+              <button onClick={() => setPage(p => Math.max(1, p - 1))} disabled={page <= 1}
+                style={{ padding: '6px 16px', borderRadius: '6px', border: '1px solid #475569', background: '#1e293b', color: '#94a3b8', cursor: page <= 1 ? 'not-allowed' : 'pointer' }}>上一页</button>
+              <span style={{ padding: '6px 16px', color: '#94a3b8' }}>第 {page} 页</span>
+              <button onClick={() => setPage(p => p + 1)} disabled={page * 20 >= total}
+                style={{ padding: '6px 16px', borderRadius: '6px', border: '1px solid #475569', background: '#1e293b', color: '#94a3b8', cursor: page * 20 >= total ? 'not-allowed' : 'pointer' }}>下一页</button>
+            </div>
+          )}
+        </div>
+      )}
+
+      {tab === 'members' && (
+        <div>
+          <div style={{ marginBottom: '16px' }}>
+            <select value={selectedTenant} onChange={e => setSelectedTenant(e.target.value)}
+              style={{ padding: '8px 12px', borderRadius: '8px', background: '#1e293b', color: '#e2e8f0', border: '1px solid #475569', fontSize: '14px' }}>
+              <option value="">选择租户...</option>
+              {tenants.map(t => <option key={t.id} value={t.id}>{t.name}</option>)}
+            </select>
+          </div>
+          {selectedTenant && (
+            <table style={{ width: '100%', borderCollapse: 'collapse', background: '#1e293b', borderRadius: '12px', overflow: 'hidden' }}>
+              <thead>
+                <tr style={{ background: '#0f172a' }}>
+                  {['用户名', '邮箱', '角色', '状态', '加入时间'].map(h => (
+                    <th key={h} style={{ padding: '12px 16px', textAlign: 'left', fontSize: '13px', color: '#94a3b8', fontWeight: 600 }}>{h}</th>
+                  ))}
+                </tr>
+              </thead>
+              <tbody>
+                {members.map(m => (
+                  <tr key={m.id} style={{ borderBottom: '1px solid #334155' }}>
+                    <td style={{ padding: '12px 16px', fontSize: '14px', fontWeight: 600 }}>{m.username || m.user_id.substring(0, 8)}</td>
+                    <td style={{ padding: '12px 16px', fontSize: '13px', color: '#94a3b8' }}>{m.email || '-'}</td>
+                    <td style={{ padding: '12px 16px' }}>
+                      <span style={{ padding: '2px 10px', borderRadius: '12px', fontSize: '12px', fontWeight: 600,
+                        background: `${roleColors[m.role]}22`, color: roleColors[m.role] }}>{m.role}</span>
+                    </td>
+                    <td style={{ padding: '12px 16px' }}>
+                      <span style={{ color: m.status === 'active' ? '#10b981' : '#ef4444', fontSize: '13px' }}>{m.status}</span>
+                    </td>
+                    <td style={{ padding: '12px 16px', fontSize: '13px', color: '#64748b' }}>{m.joined_at?.substring(0, 16)}</td>
+                  </tr>
+                ))}
+              </tbody>
+            </table>
+          )}
+        </div>
+      )}
+
+      {tab === 'stats' && stats && (
+        <div style={{ background: '#1e293b', borderRadius: '12px', padding: '32px' }}>
+          <div style={{ display: 'grid', gridTemplateColumns: 'repeat(2, 1fr)', gap: '24px' }}>
+            {Object.entries(stats).map(([k, v]) => (
+              <div key={k} style={{ display: 'flex', justifyContent: 'space-between', alignItems: 'center', padding: '16px', background: '#0f172a', borderRadius: '8px' }}>
+                <span style={{ fontSize: '14px', color: '#94a3b8' }}>{k.replace(/_/g, ' ').toUpperCase()}</span>
+                <span style={{ fontSize: '24px', fontWeight: 800, color: '#6366f1' }}>{String(v)}</span>
+              </div>
+            ))}
+          </div>
+        </div>
+      )}
+
+      {/* Create modal */}
+      {showCreate && (
+        <div style={{ position: 'fixed', inset: 0, background: 'rgba(0,0,0,0.6)', display: 'flex', alignItems: 'center', justifyContent: 'center', zIndex: 1000 }}
+          onClick={() => setShowCreate(false)}>
+          <div onClick={e => e.stopPropagation()} style={{ background: '#1e293b', borderRadius: '16px', padding: '32px', width: '480px', maxWidth: '90vw' }}>
+            <h2 style={{ fontSize: '20px', fontWeight: 700, marginBottom: '24px' }}>创建租户</h2>
+            {[
+              { k: 'name', label: '租户名称', type: 'text' },
+              { k: 'slug', label: '标识(英文)', type: 'text' },
+              { k: 'description', label: '描述', type: 'text' },
+              { k: 'max_members', label: '最大成员数', type: 'number' },
+              { k: 'max_storage_mb', label: '存储上限(MB)', type: 'number' },
+              { k: 'max_api_calls_per_day', label: 'API调用/天', type: 'number' },
+            ].map(f => (
+              <div key={f.k} style={{ marginBottom: '16px' }}>
+                <label style={{ display: 'block', fontSize: '13px', color: '#94a3b8', marginBottom: '6px' }}>{f.label}</label>
+                <input type={f.type} value={(form as any)[f.k]} onChange={e => setForm({ ...form, [f.k]: f.type === 'number' ? Number(e.target.value) : e.target.value })}
+                  style={{ width: '100%', padding: '10px 12px', borderRadius: '8px', background: '#0f172a', color: '#e2e8f0', border: '1px solid #475569', fontSize: '14px', boxSizing: 'border-box' }} />
+              </div>
+            ))}
+            <div style={{ display: 'flex', gap: '12px', marginTop: '24px' }}>
+              <button onClick={() => setShowCreate(false)} style={{ flex: 1, padding: '10px', borderRadius: '8px', border: '1px solid #475569', background: 'transparent', color: '#94a3b8', cursor: 'pointer', fontSize: '14px' }}>取消</button>
+              <button onClick={handleCreate} style={{ flex: 1, padding: '10px', borderRadius: '8px', border: 'none', background: '#6366f1', color: '#fff', cursor: 'pointer', fontSize: '14px', fontWeight: 600 }}>创建</button>
+            </div>
+          </div>
+        </div>
+      )}
+    </div>
+  );
+};
+
+export default Tenant;