feat(engine): 添加MCP连接管理和工具集成功能

- 集成MCP连接管理器，支持MCP服务器连接
- 添加多种内置工具：ClarifyTool、CronTool、DelegateTool、ExecuteCodeTool、
  PatchFileTool、ProcessTool、SendMessageTool、SpawnTool、TerminalTool、
  TodoTool、WebFetchTool、WebSearchTool、WriteFileTool等
- 实现工具注册和装配功能
- 添加技能选择上下文参数
- 支持思考模式控制参数thinking_enabled

feat(coordinator): 重构任务执行计划器参数命名

- 将learning_candidate_enabled重命名为allow_candidate_generation
- 更新TeamGraphScheduler中的参数传递
- 修改LocalAgentRunner中的相关参数处理
- 更新README文档中的相应描述

refactor(context): 标准化工具调用参数格式

- 添加_json导入用于参数序列化
- 实现_provider_tool_calls方法标准化OpenAI兼容的工具调用载荷
- 修复工具调用中参数非字符串类型的序列化问题

refactor(session): 优化消息历史记录过滤逻辑

- 修改get_messages_as_conversation为基于运行状态过滤消息
- 排除未完成、失败或错误结束的运行记录
- 改进对话历史的可见性控制机制

fix(store): 修复FTS索引重建逻辑

- 添加异常处理防止FTS索引创建失败
- 实现_rebuild_fts_index方法重新构建全文搜索索引
- 优化索引触发器和表的维护流程

app-instance/backend/tests/unit/test_task_skill_resolver.py

@@ -9,7 +9,7 @@ from beaver.engine.context import SkillContext
 from beaver.engine.providers.base import LLMProvider, LLMResponse
 from beaver.engine.providers.factory import ProviderBundle
 from beaver.skills.drafts import DraftService
-from beaver.skills.learning import MissingSkillSynthesizer
+from beaver.skills.learning import EphemeralGuidanceSynthesizer
 from beaver.skills.publisher import SkillPublisher
 from beaver.skills.reviews import ReviewService
 from beaver.skills.specs import SkillSpecStore
@@ -116,12 +116,12 @@ def test_task_skill_resolver_pins_matching_published_skill(tmp_path: Path) -> No
     assert reports[0].ephemeral_used is False
 
 
-def test_task_skill_resolver_generates_draft_only_ephemeral_skill_when_missing(tmp_path: Path) -> None:
+def test_task_skill_resolver_generates_ephemeral_guidance_when_missing(tmp_path: Path) -> None:
     provider = RecordingProvider(
         [
             """
             {
-              "skill_name": "api-compatibility-review",
+              "guidance_name": "api-compatibility-review",
               "description": "Review API compatibility",
               "content": "# API Compatibility Review\\n\\nCheck schema compatibility.",
               "tags": ["api", "review"]
@@ -133,7 +133,7 @@ def test_task_skill_resolver_generates_draft_only_ephemeral_skill_when_missing(t
     resolver = TaskSkillResolver(
         skills_loader=SkillsLoader(tmp_path),
         draft_service=DraftService(store),
-        missing_skill_synthesizer=MissingSkillSynthesizer(),
+        missing_skill_synthesizer=EphemeralGuidanceSynthesizer(),
     )
     graph = ExecutionGraph(
         strategy="sequence",
@@ -163,13 +163,14 @@ def test_task_skill_resolver_generates_draft_only_ephemeral_skill_when_missing(t
     )
 
     drafts = store.list_drafts("api-compatibility-review")
-    assert len(drafts) == 1
+    assert drafts == []
     assert store.list_published_skill_names() == []
     assert resolved.nodes[0].inherited_pinned_skills == []
     assert len(resolved.nodes[0].inherited_pinned_skill_contexts) == 1
     context: SkillContext = resolved.nodes[0].inherited_pinned_skill_contexts[0]
-    assert context.name == "draft:api-compatibility-review"
-    assert context.version == f"draft:{drafts[0].draft_id}"
-    assert context.activation_reason == "generated_missing_skill"
-    assert reports[0].generated_skill_draft_id == drafts[0].draft_id
+    assert context.name == "ephemeral:api-compatibility-review"
+    assert context.version.startswith("ephemeral:eg_")
+    assert context.activation_reason == "ephemeral_guidance"
+    assert reports[0].ephemeral_guidance_id is not None
+    assert reports[0].ephemeral_guidance_name == "api-compatibility-review"
     assert reports[0].ephemeral_used is True