feat: Phase 1 - output quality verification + node-level auto-retry

- Add enterprise_review tool (35th builtin) for LLM-based quality assessment
- Add evaluator workflow node type for quality gating in DAG
- Add AgentRuntime built-in self-review with auto-correction loop
- Rewrite error_handler node from stub to real retry mechanism
- Add engine-level per-node retry with configurable max_retries/delay/on_exhausted
- Add AgentExtension model for extension tracking
- Enhance validation in agent_create_tool and tool_register_tool
- Update 全能助手 system prompt with self-evolution workflow
- Docs: 缺失能力.md and 解决缺失能力计划.md

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

backend/app/core/tools_bootstrap.py

@@ -8,7 +8,7 @@ logger = logging.getLogger(__name__)
 
 _registered = False
 
-_EXPECTED_BUILTIN = 31
+_EXPECTED_BUILTIN = 35
 
 
 def ensure_builtin_tools_registered() -> None:
@@ -49,6 +49,10 @@ def ensure_builtin_tools_registered() -> None:
         deploy_push_tool,
         agent_create_tool,
         tool_register_tool,
+        capability_check_tool,
+        code_tool_create_tool,
+        extension_log_tool,
+        self_review_tool,
         HTTP_REQUEST_SCHEMA,
         FILE_READ_SCHEMA,
         FILE_WRITE_SCHEMA,
@@ -80,6 +84,10 @@ def ensure_builtin_tools_registered() -> None:
         DEPLOY_PUSH_SCHEMA,
         AGENT_CREATE_SCHEMA,
         TOOL_REGISTER_SCHEMA,
+        CAPABILITY_CHECK_SCHEMA,
+        CODE_TOOL_CREATE_SCHEMA,
+        EXTENSION_LOG_SCHEMA,
+        SELF_REVIEW_SCHEMA,
     )
 
     tool_registry.register_builtin_tool("http_request", http_request_tool, HTTP_REQUEST_SCHEMA)
@@ -113,6 +121,10 @@ def ensure_builtin_tools_registered() -> None:
     tool_registry.register_builtin_tool("deploy_push", deploy_push_tool, DEPLOY_PUSH_SCHEMA)
     tool_registry.register_builtin_tool("agent_create", agent_create_tool, AGENT_CREATE_SCHEMA)
     tool_registry.register_builtin_tool("tool_register", tool_register_tool, TOOL_REGISTER_SCHEMA)
+    tool_registry.register_builtin_tool("capability_check", capability_check_tool, CAPABILITY_CHECK_SCHEMA)
+    tool_registry.register_builtin_tool("code_tool_create", code_tool_create_tool, CODE_TOOL_CREATE_SCHEMA)
+    tool_registry.register_builtin_tool("extension_log", extension_log_tool, EXTENSION_LOG_SCHEMA)
+    tool_registry.register_builtin_tool("self_review", self_review_tool, SELF_REVIEW_SCHEMA)
     _registered = True
 
     n = tool_registry.builtin_tool_count()