diff --git a/.gitea/workflows/ci.yml b/.gitea/workflows/ci.yml
index 43567ae..bb73040 100644
--- a/.gitea/workflows/ci.yml
+++ b/.gitea/workflows/ci.yml
@@ -1,9 +1,10 @@
 # CI 管道 — moziplus v2.0
 #
 # 触发条件：
-#   - push（非 main 分支）
 #   - pull_request（opened, synchronize）
 #
+# 注意：只保留 pull_request 触发，避免 push + pull_request 双倍触发
+#
 # Gitea v1.23.4 限制注意：
 #   - 不支持 failure() 表达式，用 always() + shell 条件判断替代
 #   - 不支持 concurrency / continue-on-error / timeout-minutes / permissions
@@ -13,10 +14,6 @@
 name: CI
 
 on:
-  push:
-    branches:
-      - '**'
-      - '!main'
   pull_request:
     types: [opened, synchronize]
 
@@ -29,12 +26,12 @@ jobs:
 
       - name: Setup Python
         run: |
-          python3 -m venv .venv
-          .venv/bin/pip install --quiet flake8
+          python3 -m venv /tmp/ci-venv-lint
+          /tmp/ci-venv-lint/bin/pip install --quiet flake8
 
       - name: Lint with flake8
         run: |
-          .venv/bin/flake8 src/ --max-line-length=120 --extend-ignore=E501
+          /tmp/ci-venv-lint/bin/flake8 src/ --max-line-length=120 --extend-ignore=E501
 
   # ── Job 2: Test ──────────────────────────────────────
   test:
@@ -45,15 +42,16 @@ jobs:
 
       - name: Setup Python
         run: |
-          python3 -m venv .venv
-          .venv/bin/pip install --quiet -r requirements.txt
+          python3 -m venv /tmp/ci-venv-test
+          /tmp/ci-venv-test/bin/pip install --quiet fastapi pydantic pyyaml uvicorn requests pytest pytest-asyncio httpx
 
       - name: Run tests (exclude E2E)
         run: |
-          .venv/bin/pytest tests/ -m "not e2e" -x -q
+          /tmp/ci-venv-test/bin/pytest tests/ -m "not e2e" -x -q
 
   # ── Job 3: CI 失败通知 ───────────────────────────────
   # v1.23 不支持 failure()，用 always() + shell 检查 commit status 替代
+  # 修复：只有明确的 failure 才发通知，空状态/未知状态不发（避免误报）
   notify-on-failure:
     runs-on: macos-arm64
     needs: [lint, test]
@@ -69,10 +67,11 @@ jobs:
             "${{ gitea.api_url }}/repos/${{ gitea.repository }}/commits/${{ gitea.sha }}/status" \
             | python3 -c "import sys,json; print(json.load(sys.stdin).get('state',''))" 2>/dev/null || echo "")
 
-          echo "Commit status: $STATUS"
+          echo "Commit status: [$STATUS]"
 
-          if [ "$STATUS" != "success" ]; then
-            echo "CI failed or status unknown, sending notification..."
+          # 只在明确 failure 时发通知（空/unknown/success/pending 都不发）
+          if [ "$STATUS" = "failure" ]; then
+            echo "CI explicitly failed, sending notification..."
 
             # 如果是 PR 事件，写评论通知
             PR_NUMBER="${{ gitea.event.pull_request.number }}"
@@ -88,5 +87,5 @@ jobs:
               echo "Not a PR event, skipping PR comment."
             fi
           else
-            echo "CI passed, no notification needed."
+            echo "CI status is [$STATUS], no failure notification needed."
           fi