P2/M3: bff_restart.sh 修 pkill 模式(python -m uvicorn 形态)+ 启动等待 5s→12s

- 旧模式 [u]vicorn app.main:app 匹配不到 python -m uvicorn 命令行
- 编译树 BFF 冷启动更慢,等待窗口放宽
- 浸泡切换:sdk/.env QA_BASE_URL=7921(agent/qa 编译树),回滚=删行+重启

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

deploy/bff_restart.sh

@@ -10,7 +10,7 @@ source ~/miniconda3/etc/profile.d/conda.sh
 conda activate plantai-bff
 
 # 杀旧进程（[u] 正则技巧防 pkill 自匹配）
-pkill -f "[u]vicorn app.main:app" 2>/dev/null
+pkill -f "[a]pp.main:app" 2>/dev/null
 sleep 2
 
 cd "$ROOT/sdk"
@@ -24,7 +24,7 @@ setsid python -m uvicorn app.main:app --host "$BIND" --port 8090 \
   > /tmp/plantai-bff.log 2>&1 < /dev/null &
 disown
 
-sleep 5
+sleep 12
 if ss -tln | grep -q ":8090 "; then
   echo "BFF UP ($BIND:8090)"
   curl -s --max-time 20 http://127.0.0.1:8090/api/health | head -c 200