fix: show project name instead of ID in prompt

pipeline_service/agent_loop_v2.py

@@ -241,8 +241,15 @@ class AgentExecutor:
         """组装完整 system prompt = 基础 prompt + 记忆 + 技能 + 工具列表"""
         prompt = self.config.system_prompt
 
-        # 注入当前项目
-        prompt = prompt.replace("{current_project}", self.project_id or "未选择")
+        # 注入当前项目上下文
+        proj_name = self.project_id
+        try:
+            ctx = await self._load_project_context()
+            if ctx:
+                proj_name = ctx.replace("项目: ", "")
+        except Exception:
+            pass
+        prompt += f"\n当前项目: {proj_name}\n" if proj_name else ""
 
         # 注入记忆
         if self.config.memory.enabled and self._memory_store:
@@ -274,13 +281,6 @@ class AgentExecutor:
             tools_text = "\n".join(lines)
         prompt = prompt.replace("{tools_description}", tools_text)
 
-        # 注入项目上下文
-        try:
-            ctx = await self._load_project_context()
-            prompt = prompt.replace("{project_context}", ctx)
-        except Exception:
-            prompt = prompt.replace("{project_context}", "")
-
         return prompt
 
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