fix: P0 token 环境变量 + P1 fail_count 逻辑简化（姜维 Review）

src/daemon/toolchain_handler.py

@@ -7,6 +7,7 @@ from __future__ import annotations
 
 import json
 import logging
+import os
 import urllib.request
 from pathlib import Path
 from typing import Dict, List
@@ -23,10 +24,7 @@ logger = logging.getLogger("moziplus-v2.handler.toolchain")
 # ---------------------------------------------------------------------------
 
 _GITEA_BASE = "http://192.168.2.154:3000/api/v1"
-_GITEA_TOKEN = "a6d596b826f4bfeaf983ef4d25ac25dab95bbc4e"
-
-# 业务失败连续次数阈值,超过则升级为系统失败
-_BUSINESS_FAIL_THRESHOLD = 3
+_GITEA_TOKEN = os.environ.get("GITEA_TOKEN", "")
 
 # action_type → action_hint 映射
 _ACTION_HINTS: Dict[str, str] = {
@@ -308,22 +306,16 @@ class ToolchainHandler(BaseTaskHandler):
             ).fetchone()
             if row and row["must_haves"]:
                 meta = json.loads(row["must_haves"])
-            # 统计该 task 的业务失败次数
-            fail_count = conn.execute(
-                "SELECT COUNT(*) FROM events WHERE task_id=? "
-                "AND event_type='status_change' AND payload LIKE '%failed%'",
-                (task_id,)
-            ).fetchone()[0]
             conn.close()
         except Exception:
-            fail_count = 0
+            pass
 
         action_type = meta.get("action_type", "")
         context_data = meta.get("context", {})
         assignee = meta.get("assignee", "") or meta.get("from", "")
 
         # 三分路决策
-        route = self._classify_failure(verify, fail_count)
+        route = self._classify_failure(verify)
 
         if route == "business":
             self._handle_business_failure(
@@ -335,14 +327,11 @@ class ToolchainHandler(BaseTaskHandler):
             self._handle_infrastructure_failure(
                 task_id, agent_id, verify, db_path)
 
-    def _classify_failure(self, verify: VerifyResult, fail_count: int) -> str:
+    def _classify_failure(self, verify: VerifyResult) -> str:
         """分类失败类型:business / system / infrastructure"""
         # verify_error 或 DB 不可用 → 基础设施失败
         if verify.reason == "verify_error":
             return "infrastructure"
-        # 连续业务失败超过阈值 → 升级为系统失败
-        if fail_count >= _BUSINESS_FAIL_THRESHOLD:
-            return "system"
         # 默认:业务失败
         return "business"
 
@@ -450,6 +439,8 @@ class ToolchainHandler(BaseTaskHandler):
         self, repo: str, pr_number: int, body: str,
     ) -> bool:
         """在 PR/Issue 上创建 comment。返回是否成功。"""
+        if not _GITEA_TOKEN:
+            return False
         payload = json.dumps({"body": body}, ensure_ascii=False).encode("utf-8")
         try:
             req = urllib.request.Request(
@@ -471,6 +462,8 @@ class ToolchainHandler(BaseTaskHandler):
         assignees: list = None,
     ) -> bool:
         """创建 Gitea Issue。返回是否成功。"""
+        if not _GITEA_TOKEN:
+            return False
         data = {"title": title, "body": body}
         if assignees:
             data["assignees"] = assignees