feat: capability 工具分发支持全路径模块 + 通用工具聚合层

- exec_capability_tool：module 支持裸名(=pipeline_service.*)或全路径，
  产线自有能力包(如 pipeline_bidding.*)可注册角色工具而宿主零接触
- shared_ability：聚合 SDLC 能力包里的通用任务/交付件/问答/项目工具，
  供新产线能力包复用，不重复实现、不反向依赖具体产线

pipeline_service/capability_tools.py

@@ -278,7 +278,13 @@ async def exec_capability_tool(tool_name, params, ctx):
     p.setdefault("task_id", ctx.get("task_id", ""))
 
     try:
-        mod = importlib.import_module(f"pipeline_service.{schema['module']}")
+        # module 支持两种写法：裸名（如 'feature_capability'，pipeline-service 包内）
+        # 或全路径（如 'pipeline_bidding.bid_tender_capability'，产线自有能力包）。
+        # 产线能力模块放自己仓库：宿主不装该产线就零接触，不污染引擎包。
+        modname = schema['module']
+        if '.' not in modname:
+            modname = "pipeline_service." + modname
+        mod = importlib.import_module(modname)
         fn = getattr(mod, tool_name)
         sig = inspect.signature(fn)
         kwargs = {k: v for k, v in p.items() if k in sig.parameters}

pipeline_service/shared_ability.py

@@ -0,0 +1,60 @@
+"""引擎级共享能力：跨产线通用的任务/交付件/问答/项目生命周期工具集合。
+
+这些 handler 操作的都是**通用表**（pipeline_tasks / pipeline_deliverables /
+pipeline_agent_questions / sd_projects），与具体产线无关。历史原因它们的实现落在
+sdlc_ability.py 里；本模块把「通用那部分」聚合出来，供任意产线能力包复用：
+
+    from pipeline_service.shared_ability import SHARED_TOOLS, SHARED_HANDLERS
+
+这样新产线（如投标产线 bidding_general）不必复制 700 行任务管理代码，也不必反向依赖
+另一个产线的能力包。零行为变更：只是引用，不移动实现。
+
+后续可把这些 handler 的实现物理迁移到本模块，sdlc_ability 改为从这里 import。
+"""
+
+import logging
+
+logger = logging.getLogger("pipeline.shared_ability")
+
+# 通用工具名单（产线无关）。凡涉及 sd_iterations / sd_features / sd_bugs /
+# sd_test_* / sd_deploy_envs 的 SDLC 专属工具都不在此列。
+_GENERIC_TOOL_NAMES = [
+    # 任务
+    "create_task", "list_tasks", "task_detail", "reset_task_retry",
+    "approve_task", "complete_task", "cancel_task",
+    # agent 运行 / 诊断
+    "start_agents", "diagnose_project", "check_progress",
+    # 交付件
+    "list_deliverables", "view_deliverable",
+    "submit_deliverable", "approve_deliverable", "reject_deliverable",
+    # 问答冒泡
+    "list_questions", "answer_question", "escalate_question",
+    # 项目生命周期
+    "list_projects", "start_project", "complete_project", "archive_project",
+    "reopen_project", "pause_project", "resume_project", "backup_project",
+    # 角色模型
+    "list_role_models", "set_role_model",
+]
+
+SHARED_TOOLS = []
+SHARED_HANDLERS = {}
+
+
+def _build():
+    global SHARED_TOOLS, SHARED_HANDLERS
+    try:
+        from .sdlc_ability import SDL_TOOLS, SDL_HANDLERS
+    except Exception as e:
+        logger.warning("shared_ability: 无法加载通用 handler 源: %s", str(e)[:160])
+        return
+    names = set(_GENERIC_TOOL_NAMES)
+    SHARED_TOOLS = [t for t in SDL_TOOLS if getattr(t, "name", "") in names]
+    SHARED_HANDLERS = {k: v for k, v in SDL_HANDLERS.items() if k in names}
+    missing = names - set(SHARED_HANDLERS)
+    if missing:
+        logger.info("shared_ability: 以下通用工具未找到 handler（跳过）: %s", sorted(missing))
+    logger.info("shared_ability: %d tools / %d handlers 可复用",
+                len(SHARED_TOOLS), len(SHARED_HANDLERS))
+
+
+_build()