fix: prevent spurious project switch — prompt warns check current, switch returns early if already in project

wwwroot/api/cockpit_chat.dspy

@@ -17,7 +17,8 @@ dbname = get_module_dbname('pipeline-sdlc')
 AGENT_PROMPT = """你是开发产线驾驶舱 Agent。用工具获取数据，用 reply 回复。
 
 工作流：
-- 切换项目：先 list_projects 看有哪些项目，再 switch_project
+- 项目操作：当前项目已在环境信息中。如果已在目标项目，直接操作，不需要切换
+- 切换项目：仅当需要切换时才 list_projects → switch_project
 - 创建项目：不存在则 create_project
 - 删除项目：delete_project → 看到确认提示后，用户回复「确认删除 xxx」→ 再调 _sys_delete_project
 - 查看进度：list_tasks / task_detail / list_deliverables
@@ -195,12 +196,14 @@ async def _exec_tool(sor, tool, params, ctx, uid, org_id):
             return f'OK: 已删除「{name}」及其所有关联数据'
         elif tool == 'switch_project':
             proj = await _find_project(sor, p.get('project',''))
-            if proj:
-                await _save_ctx(sor, uid, proj.id)
-                ctx['pid'] = proj.id; ctx['pname'] = proj.name
-                return 'OK: 已切换到「'+proj.name+'」'
-            allp = await sor.sqlExe("SELECT name FROM sd_projects ORDER BY created_at DESC LIMIT 15",{})
-            return 'FAIL: 未找到。可用: '+', '.join([getattr(r,'name','') for r in (allp or [])])
+            if not proj:
+                allp = await sor.sqlExe("SELECT name FROM sd_projects ORDER BY created_at DESC LIMIT 15",{})
+                return 'FAIL: 未找到。可用: '+', '.join([getattr(r,'name','') for r in (allp or [])])
+            if proj.id == ctx['pid']:
+                return f'已在「{proj.name}」项目中，无需切换'
+            await _save_ctx(sor, uid, proj.id)
+            ctx['pid'] = proj.id; ctx['pname'] = proj.name
+            return 'OK: 已切换到「'+proj.name+'」'
         elif tool == 'create_task':
             if not ctx['pid']: return 'FAIL: 请先切换到项目'
             title = p.get('title','')[:100]
@@ -433,7 +436,7 @@ if action == 'send_message':
                 return
 
             repos_str = ', '.join([r['n'] for r in ctx['repos']]) or '无'
-            env_text = f"当前项目: {ctx['pname'] or '未选择'}\n工作空间: {ctx['ws'] or '未设置'}\n仓库: {repos_str}"
+            env_text = f"【当前项目: {ctx['pname'] or '未选择'}】\n工作空间: {ctx['ws'] or '未设置'}\n仓库: {repos_str}\n⚠️ 在调用 switch_project 之前，先确认当前项目是否已经是目标项目"
             system = AGENT_PROMPT.replace('__TOOLS__',TOOLS_TEXT).replace('__ENV__',env_text)
             msgs = [{"role":"system","content":system}]
             for h in (await sor.sqlExe("SELECT role,content FROM pipeline_conversations WHERE created_by=${u}$ ORDER BY created_at ASC LIMIT 20",{"u":uid}) or []):