diff --git a/.gitea/workflows/ci.yml b/.gitea/workflows/ci.yml
new file mode 100644
index 0000000..9c603c1
--- /dev/null
+++ b/.gitea/workflows/ci.yml
@@ -0,0 +1,28 @@
+# qihuaiflow minimal CI (Gitea Actions)
+#
+# NOTE: This workflow is DORMANT until a Gitea act_runner is registered with
+# this repo. The active gate today is the host-side pre-push hook
+# (scripts/git-hooks/pre-push) + scripts/ci_gate.py, because our deployment
+# model keeps the app running in a long-lived `qihu-aiflow` container on the
+# docker host rather than building it fresh in CI.
+#
+# To activate later:
+#   1. Install act_runner on the docker host (sharing the docker socket).
+#   2. Register it against this repo with label `ubuntu-latest`.
+#   3. The runner can then `docker exec qihu-aiflow ...` to reach the app.
+#
+# Until then, the pre-push hook already blocks broken pushes.
+name: CI
+on:
+  push:
+    branches: [main]
+  pull_request:
+
+jobs:
+  gate:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Backend pytest
+        run: docker exec qihu-aiflow bash -c 'cd /app/backend/python && .venv/bin/python -m pytest -c pytest.ini -q'
+      - name: Frontend vitest
+        run: docker exec qihu-aiflow bash -c 'cd /app/frontend && npx vitest run --reporter=dot'
diff --git a/VERSION b/VERSION
index 61f8348..e580627 100644
--- a/VERSION
+++ b/VERSION
@@ -3,19 +3,23 @@
 # 版本号格式: vYYYY.MM.DD.N   (年.月.日.当日递增序号，从 1 开始)
 # 环境标签:   prod = 正式版 | test = 测试版
 
-VERSION=v2026.07.18.1
+VERSION=v2026.07.18.5
 ENV=prod
 DATE=2026-07-18
 BASE_IMAGE=qihu-aiflow:with-deps
-BACKUP_IMAGE=qihu-aiflow:backup-20260718-001
+BACKUP_IMAGE=qihu-aiflow:backup-20260718-005
 
-## 本版本变更 (v2026.07.18.1 / prod)
-- Phase0 工程纪律止血 启动
-- 新增「部署前镜像备份 SOP」：scripts/backup_before_deploy.py，每次部署前自动提交递增序号镜像快照
-- 统一版本号规范 vYYYY.MM.DD.N + prod/test 标签（取代旧 -recover 标签）
-- 引入后端 pytest / 前端 vitest 测试基建，作为迭代式重构的安全网
-- 固化反复问题的回归用例 R1/R2/R3
+## 本版本变更 (v2026.07.18.5 / prod)
+- Phase0 收官：新增「最小 CI 门禁」
+- scripts/ci_gate.py：统一测试网关，容器内跑后端 pytest + 前端 vitest，自动判定本地 docker 或经 ssh_helper 远程执行，任一失败即非零退出阻断发布
+- scripts/git-hooks/pre-push：纯 bash 的 git pre-push 钩子，push 前在容器内跑两套测试，失败即阻断 push（已安装到 .git/hooks）
+- .gitea/workflows/ci.yml：Gitea Actions 最小 CI 模板（当前无 act_runner，处于 dormant；钩子已先行拦截坏推送）
+- 测试安全网现状：后端 9 passed（smoke/market/sms + R1/R2/R3），前端 4 passed（datetime 时区格式化）
 
 ## 历史
+- v2026.07.18.4 (prod)：前端 vitest 基建落地（4 passed，datetime 时区格式化）。
+- v2026.07.18.3 (prod)：回归用例 R1/R2/R3（9 passed）— 微信Bot截断、技能/MCP覆盖规则、媒体生成超时回写。
+- v2026.07.18.2 (prod)：后端 pytest 基建落地（6 passed）— 冒烟/市场14类/短信宝MD5。
+- v2026.07.18.1 (prod)：Phase0 启动 — 部署前镜像备份 SOP + 版本号规范 + 引入测试基建。
 - 旧方案：镜像曾用 AIFlow v2.0.1 / v2026.07.14 / v2026.07.14-nav；git 曾用 v2026.07.12-recover / v2026.07.12-ui-recover / v2026.07.13-recover。自 v2026.07.18.1 起统一为 vYYYY.MM.DD.N + prod/test，便于正式版推广后与测试版做环境切割。
 - 历史功能：AI聊天(real API + tool-call function calling)、知识库文件存储 + AI 图谱、频道二维码、邮件/短信配置 + AI 生成、支付配置、平台驾驶舱(token 累计 + 审计/操作日志)、Agent 资源 API、evolution pipeline 自动恢复、全局默认模型、广告位图片上传 + AI 绘图、应用市场安装/卸载/搜索/去重、资产文件类型分类 + 在线预览。迁移 001-015。
diff --git a/scripts/ci_gate.py b/scripts/ci_gate.py
new file mode 100644
index 0000000..77d5bbe
--- /dev/null
+++ b/scripts/ci_gate.py
@@ -0,0 +1,115 @@
+"""Minimal CI gate for qihuaiflow.
+
+This is the canonical, single-source-of-truth gate. It runs the two test
+suites that guard production behavior, INSIDE the long-lived qihu-aiflow
+container (our deployment model keeps the app running in a container, not
+built fresh in CI):
+
+  1. backend pytest  -> /app/backend/python/.venv/bin/python -m pytest -c pytest.ini
+  2. frontend vitest -> /app/frontend && npx vitest run
+
+Exit codes:
+  0  all suites green  -> deploy/push may proceed
+  1  a test suite failed -> BLOCK (do not deploy/push)
+  2  environment error  -> docker missing or container not running
+
+It auto-detects where it runs:
+  * If the qihu-aiflow container is reachable via LOCAL docker (i.e. on the
+    deploy host), it execs directly.
+  * Otherwise it falls back to ssh_helper (remote control from a laptop),
+    which reaches the host over SSH and execs into the container there.
+
+Usage:
+  python scripts/ci_gate.py
+"""
+import os
+import subprocess
+import sys
+
+CONTAINER = "qihu-aiflow"
+
+BACKEND_CMD = "cd /app/backend/python && .venv/bin/python -m pytest -c pytest.ini -q"
+FRONTEND_CMD = "cd /app/frontend && npx vitest run --reporter=dot"
+
+
+def shell_quote(s: str) -> str:
+    return "'" + s.replace("'", "'\\''") + "'"
+
+
+def local_runner(cmd: str):
+    """Run via local docker (deploy host)."""
+    p = subprocess.run(cmd, shell=True, capture_output=True, text=True)
+    return p.stdout, p.stderr, p.returncode
+
+
+def get_runner():
+    # Prefer local docker ONLY if the actual container is reachable here
+    # (avoids a Windows-docker edge case where `docker ps` works but the
+    # qihu-aiflow container lives on a different host).
+    try:
+        r = subprocess.run(
+            "docker ps --format '{{.Names}}'",
+            shell=True, capture_output=True, text=True, timeout=10,
+        )
+        if r.returncode == 0 and CONTAINER in r.stdout.split():
+            return local_runner
+    except Exception:
+        pass
+    # Fall back to SSH control of the real host.
+    try:
+        import ssh_helper as s  # type: ignore
+        return lambda cmd: s.run(cmd)
+    except Exception as e:  # pragma: no cover
+        print(f"[CI Gate] ERROR: docker unavailable locally and ssh_helper missing: {e}",
+              file=sys.stderr)
+        sys.exit(2)
+
+
+def run_in_container(runner, cmd: str):
+    return runner(f"docker exec {CONTAINER} bash -c {shell_quote(cmd)}")
+
+
+def container_up(runner) -> bool:
+    out, _, _ = runner(f"docker ps --format {shell_quote('{{.Names}}')}")
+    return CONTAINER in out.split()
+
+
+def main():
+    runner = get_runner()
+    if not container_up(runner):
+        print(f"[CI Gate] ERROR: container {CONTAINER} is not running", file=sys.stderr)
+        sys.exit(2)
+
+    failures = []
+
+    print("=== [CI Gate] backend pytest ===")
+    o, e, rc = run_in_container(runner, BACKEND_CMD)
+    sys.stdout.write(o)
+    if e.strip():
+        print("STDERR:", e.strip(), file=sys.stderr)
+    if rc != 0:
+        failures.append("backend pytest")
+        print(f"[CI Gate] backend pytest FAILED (rc={rc})", file=sys.stderr)
+    else:
+        print("[CI Gate] backend pytest OK")
+
+    print("=== [CI Gate] frontend vitest ===")
+    o, e, rc = run_in_container(runner, FRONTEND_CMD)
+    sys.stdout.write(o)
+    if e.strip():
+        print("STDERR:", e.strip(), file=sys.stderr)
+    if rc != 0:
+        failures.append("frontend vitest")
+        print(f"[CI Gate] frontend vitest FAILED (rc={rc})", file=sys.stderr)
+    else:
+        print("[CI Gate] frontend vitest OK")
+
+    if failures:
+        print(f"\n[CI Gate] BLOCKED - failed: {', '.join(failures)}", file=sys.stderr)
+        sys.exit(1)
+    print("\n[CI Gate] PASSED - all suites green")
+    sys.exit(0)
+
+
+if __name__ == "__main__":
+    main()
diff --git a/scripts/git-hooks/pre-push b/scripts/git-hooks/pre-push
new file mode 100644
index 0000000..afde86a
--- /dev/null
+++ b/scripts/git-hooks/pre-push
@@ -0,0 +1,42 @@
+#!/usr/bin/env bash
+# qihuaiflow minimal CI gate - git pre-push hook.
+#
+# Runs backend pytest + frontend vitest INSIDE the long-lived qihu-aiflow
+# container before any `git push` leaves this host. If a suite fails the
+# push is blocked (exit non-zero), so a broken tree can never be published.
+#
+# Install (on the deploy host, inside the repo):
+#   cp scripts/git-hooks/pre-push .git/hooks/pre-push
+#   chmod +x .git/hooks/pre-push
+#
+# This is a self-contained bash gate (no python dependency on the host).
+# The canonical, documented version lives in scripts/ci_gate.py.
+set -uo pipefail
+
+CONTAINER="qihu-aiflow"
+
+if ! docker ps --format '{{.Names}}' | grep -qx "$CONTAINER"; then
+  echo "[CI Gate] ERROR: container $CONTAINER is not running - aborting push" >&2
+  exit 2
+fi
+
+echo "=== [CI Gate] backend pytest ==="
+docker exec "$CONTAINER" bash -c 'cd /app/backend/python && .venv/bin/python -m pytest -c pytest.ini -q'
+backend_rc=$?
+if [ "$backend_rc" -ne 0 ]; then
+  echo "[CI Gate] backend pytest FAILED (rc=$backend_rc) - push blocked" >&2
+  exit 1
+fi
+echo "[CI Gate] backend pytest OK"
+
+echo "=== [CI Gate] frontend vitest ==="
+docker exec "$CONTAINER" bash -c 'cd /app/frontend && npx vitest run --reporter=dot'
+frontend_rc=$?
+if [ "$frontend_rc" -ne 0 ]; then
+  echo "[CI Gate] frontend vitest FAILED (rc=$frontend_rc) - push blocked" >&2
+  exit 1
+fi
+echo "[CI Gate] frontend vitest OK"
+
+echo "[CI Gate] PASSED - all suites green - push allowed"
+exit 0