fix(lint): 修复 PR #14 引入的 lint 回退 (119→0)

PR #14 从旧分支复制文件导致回退了 PR #10 的 lint 修复。
修复内容:
- autoflake 移除未使用导入/变量
- autopep8 修复缩进/空格
- 手动修复 F821(pathlib→Path), F541(f-string), F841(未使用变量)
- 所有修复均通过 flake8 --max-line-length=120 --extend-ignore=E501 检查 (0 errors)

src/api/blackboard_routes.py

@@ -5,14 +5,14 @@ from __future__ import annotations
 import json
 import os
 from pathlib import Path
-from typing import Any, Dict, List, Optional
+from typing import Any, Dict, Optional
 
 from fastapi import APIRouter, HTTPException, Query
 
 from src.blackboard.operations import Blackboard
 from src.blackboard.models import Task, Review
 from src.blackboard.queries import Queries
-from src.blackboard.db import VALID_STATUSES, VALID_TRANSITIONS, COMMENT_TYPES, OUTPUT_TYPES
+from src.blackboard.db import VALID_STATUSES, OUTPUT_TYPES
 from src.blackboard.registry import ProjectRegistry
 
 from src.utils import get_data_root
@@ -59,7 +59,10 @@ async def list_tasks(project_id: str,
                      assignee: Optional[str] = None,
                      parent_task: Optional[str] = None):
     bb = _bb(project_id)
-    tasks = bb.list_tasks(status=status, assignee=assignee, parent_task=parent_task)
+    tasks = bb.list_tasks(
+        status=status,
+        assignee=assignee,
+        parent_task=parent_task)
     return {"tasks": [_task_to_dict(t) for t in tasks]}
 
 
@@ -79,10 +82,12 @@ async def get_task(project_id: str, task_id: str,
             result["outputs_count"] = detail.get("outputs_count", 0)
             result["review_status"] = detail.get("review_status")
             result["latest_event_detail"] = detail.get("latest_event_detail")
-        result["comments"] = [dict(c.__dict__) for c in bb.get_comments(task_id)]
+        result["comments"] = [dict(c.__dict__)
+                              for c in bb.get_comments(task_id)]
         result["outputs"] = [dict(o.__dict__) for o in bb.get_outputs(task_id)]
         result["reviews"] = [dict(r.__dict__) for r in bb.get_reviews(task_id)]
-        result["decisions"] = [dict(d.__dict__) for d in bb.get_decisions(task_id)]
+        result["decisions"] = [dict(d.__dict__)
+                               for d in bb.get_decisions(task_id)]
         result["events"] = q.task_events(task_id)
         result["experiences"] = q.task_experiences(task_id)
     return result
@@ -134,7 +139,8 @@ async def create_task(project_id: str, body: Dict[str, Any]):
         priority=body.get("priority", 5),
         assignee=assignee,
         assigned_by=body.get("assigned_by", "user"),
-        depends_on=json.dumps(body["depends_on"]) if "depends_on" in body else None,
+        depends_on=json.dumps(
+            body["depends_on"]) if "depends_on" in body else None,
         parent_task=body.get("parent_task"),
         risk_level=body.get("risk_level", "standard"),
         stage=body.get("stage"),
@@ -175,7 +181,8 @@ async def _generate_title(description: str) -> str | None:
         resp = client.chat.completions.create(
             model=model,
             messages=[
-                {"role": "system", "content": "你是一个任务标题生成器。根据用户的需求描述，生成一个简洁的中文标题（5-15字），只输出标题，不要任何其他内容。"},
+                {"role": "system",
+                 "content": "你是一个任务标题生成器。根据用户的需求描述，生成一个简洁的中文标题（5-15字），只输出标题，不要任何其他内容。"},
                 {"role": "user", "content": description[:500]},
             ],
             max_tokens=50,
@@ -187,7 +194,8 @@ async def _generate_title(description: str) -> str | None:
             return title
     except Exception as e:
         import logging
-        logging.getLogger("moziplus-v2").warning(f"Title generation failed: {e}")
+        logging.getLogger(
+            "moziplus-v2").warning(f"Title generation failed: {e}")
     return None
 
 
@@ -205,7 +213,8 @@ async def task_progress(project_id: str, task_id: str):
 async def claim_task(project_id: str, task_id: str, body: Dict[str, Any]):
     bb = _bb(project_id)
     if not bb.claim_task(task_id, body["agent"]):
-        raise HTTPException(409, "Claim failed (already claimed or wrong assignee)")
+        raise HTTPException(
+            409, "Claim failed (already claimed or wrong assignee)")
     return {"ok": True}
 
 
@@ -240,7 +249,7 @@ async def update_status(project_id: str, task_id: str, body: Dict[str, Any]):
         })
 
     if not bb.update_task_status(task_id, new_status,
-                                  agent=body.get("agent")):
+                                 agent=body.get("agent")):
         raise HTTPException(409, {
             "error": "transition_failed",
             "detail": f"Status update failed for {task_id}",
@@ -265,6 +274,7 @@ async def update_status(project_id: str, task_id: str, body: Dict[str, Any]):
 # --- @mention 自动提取（#04） ---
 _KNOWN_AGENT_IDS: list = []
 
+
 def _init_agent_ids():
     """从配置文件加载 Agent ID 列表"""
     global _KNOWN_AGENT_IDS
@@ -272,18 +282,32 @@ def _init_agent_ids():
         return
     try:
         import yaml
-        cfg_path = os.path.join(os.path.dirname(__file__), "..", "..", "config", "default.yaml")
+        cfg_path = os.path.join(
+            os.path.dirname(__file__),
+            "..",
+            "..",
+            "config",
+            "default.yaml")
         with open(cfg_path) as f:
             cfg = yaml.safe_load(f)
-        _KNOWN_AGENT_IDS = list(cfg.get("daemon", {}).get("agent_profiles", {}).keys())
+        _KNOWN_AGENT_IDS = list(
+            cfg.get(
+                "daemon",
+                {}).get(
+                "agent_profiles",
+                {}).keys())
     except Exception:
         _KNOWN_AGENT_IDS = []
 
+
 def _extract_mentions(text: str) -> list:
     """从文本中自动提取 @agent-id 格式的 mention"""
     import re
     _init_agent_ids()
-    candidates = set(re.findall(r'@([a-z][a-z0-9]*(?:-[a-z][a-z0-9]*)+)', text))
+    candidates = set(
+        re.findall(
+            r'@([a-z][a-z0-9]*(?:-[a-z][a-z0-9]*)+)',
+            text))
     return [a for a in candidates if a in _KNOWN_AGENT_IDS]
 
 
@@ -317,8 +341,8 @@ async def add_comment(project_id: str, task_id: str, body: Dict[str, Any]):
     merged_mentions = list(set(explicit_mentions + auto_mentions))
 
     cid = bb.add_comment(task_id, body["author"], comment_body,
-                          comment_type=body.get("comment_type", "general"),
-                          mentions=merged_mentions)
+                         comment_type=body.get("comment_type", "general"),
+                         mentions=merged_mentions)
     if merged_mentions:
         bb.record_mentions(cid, task_id, merged_mentions)
     # #10: SSE 通知前端黑板有新 comment
@@ -395,7 +419,8 @@ async def write_output(project_id: str, task_id: str, body: Dict[str, Any]):
         )
         os.makedirs(artifacts_dir, exist_ok=True)
         # 安全文件名
-        safe_name = "".join(c if c.isalnum() or c in "._-" else "_" for c in title)
+        safe_name = "".join(
+            c if c.isalnum() or c in "._-" else "_" for c in title)
         if not safe_name:
             safe_name = "output"
         file_path = os.path.join(artifacts_dir, safe_name)
@@ -424,8 +449,8 @@ async def get_decisions(project_id: str, task_id: str):
 async def add_decision(project_id: str, task_id: str, body: Dict[str, Any]):
     bb = _bb(project_id)
     did = bb.add_decision(task_id, body["decider"], body["decision"],
-                           body["rationale"],
-                           alternatives=body.get("alternatives"))
+                          body["rationale"],
+                          alternatives=body.get("alternatives"))
     return {"ok": True, "decision_id": did}
 
 
@@ -435,7 +460,7 @@ async def add_decision(project_id: str, task_id: str, body: Dict[str, Any]):
 async def add_observation(project_id: str, task_id: str, body: Dict[str, Any]):
     bb = _bb(project_id)
     oid = bb.add_observation(task_id, body["observer"], body["body"],
-                              severity=body.get("severity", "info"))
+                             severity=body.get("severity", "info"))
     return {"ok": True, "observation_id": oid}