fix: 将 Gitea 配置迁移到 ~/.gitea/config.yaml 多账号配置体系

- 新增 _get_gitea_config.py 从 YAML 读取 URL/repo/token
- _common.sh 改为通过 eval python 脚本加载配置
- GITEA_CICD_SETUP.md / DEV_AGENT.md / QE_AGENT.md 更新文档
- CI 工作流改用 ${{ gitea.server_url }} / ${{ gitea.repository }}

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

scripts/start_dev_agent.bat

@@ -2,23 +2,25 @@
 chcp 65001 >nul
 title Dev-Agent - Gitea Issue Worker
 
+:: ── Parse GITEA_USER from command line ────────────────────────────────────────
+if "%1"=="" (
+    echo Usage: start_dev_agent.bat ^<GITEA_USER^>
+    echo Example: start_dev_agent.bat pzhang_dev_agent_01
+    pause
+    exit /b 1
+)
+set GITEA_USER=%1
+
 :: ── Change to project root ────────────────────────────────────────────────────
 cd /d "%~dp0.."
 
-:: ── Load .env (batch-compatible parser: "export KEY=VALUE" → set KEY=VALUE) ──
-if exist "scripts\.env" (
-    for /f "usebackq tokens=2,3 delims== " %%a in ("scripts\.env") do set %%a=%%b
-)
+:: ── Load Gitea configuration from ~/.gitea/config.yaml ────────────────────────
+for /f "usebackq tokens=1,* delims= " %%a in (`python scripts\_get_gitea_config.py --batch 2^>nul`) do set "%%b"
 
-:: ── Defaults ──────────────────────────────────────────────────────────────────
-if "%GITEA_URL%"==""     set GITEA_URL=https://git.zywl.me
-if "%GITEA_REPO%"==""    set GITEA_REPO=zeekrAI/document_analyzer
-if "%DEV_AGENT_ID%"==""  set DEV_AGENT_ID=da-01
-
-:: ── Validate token ────────────────────────────────────────────────────────────
-if "%GITEA_API_TOKEN%"=="" (
-    echo ERROR: GITEA_API_TOKEN is not set.
-    echo Set it in scripts\.env or in your environment.
+:: ── Validate required vars ────────────────────────────────────────────────────
+if "%GITEA_URL%"=="" (
+    echo ERROR: Gitea configuration not loaded.
+    echo Make sure "%USERPROFILE%\.gitea\config.yaml" contains a profile for "%GITEA_USER%".
     pause
     exit /b 1
 )