feat: add 10 new tools + agent self-evolution system (31 tools total)

New tools (10):
- code_execute: Python/JS sandbox execution
- git_operation: Git read-only operations (log/diff/blame/status)
- web_search: DuckDuckGo web search
- pdf_generate: Markdown to PDF/HTML report generation
- project_scaffold: Project template generator (fastapi/vue/react)
- task_plan: Task decomposition and progress tracking
- excel_process: Excel read/write with chart support
- browser_use: Headless browser control (playwright)
- docker_manage: Docker container management (read-only)
- deploy_push: File deployment (copy/rsync)

Self-evolution tools:
- agent_create: Dynamically create specialized sub-agents at runtime
- tool_register: Dynamically register HTTP tools at runtime

Documentation:
- Add 使用文档.md with full tool reference and project examples
- Update 创建agent.md (19→31 tools, add self-evolution chapter)

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

backend/app/core/tools_bootstrap.py

@@ -8,11 +8,11 @@ logger = logging.getLogger(__name__)
 
 _registered = False
 
-_EXPECTED_BUILTIN = 19
+_EXPECTED_BUILTIN = 31
 
 
 def ensure_builtin_tools_registered() -> None:
-    """幂等：注册 file_write / system_info 等内置工具，供工作流 LLM 节点使用。"""
+    """幂等：注册所有内置工具，供工作流 LLM 节点使用。"""
     global _registered
     if _registered:
         return
@@ -37,6 +37,18 @@ def ensure_builtin_tools_registered() -> None:
         url_parse_tool,
         regex_test_tool,
         agent_call_tool,
+        code_execute_tool,
+        git_operation_tool,
+        web_search_tool,
+        pdf_generate_tool,
+        project_scaffold_tool,
+        task_plan_tool,
+        excel_process_tool,
+        browser_use_tool,
+        docker_manage_tool,
+        deploy_push_tool,
+        agent_create_tool,
+        tool_register_tool,
         HTTP_REQUEST_SCHEMA,
         FILE_READ_SCHEMA,
         FILE_WRITE_SCHEMA,
@@ -56,6 +68,18 @@ def ensure_builtin_tools_registered() -> None:
         URL_PARSE_SCHEMA,
         REGEX_TEST_SCHEMA,
         AGENT_CALL_SCHEMA,
+        CODE_EXECUTE_SCHEMA,
+        GIT_OPERATION_SCHEMA,
+        WEB_SEARCH_SCHEMA,
+        PDF_GENERATE_SCHEMA,
+        PROJECT_SCAFFOLD_SCHEMA,
+        TASK_PLAN_SCHEMA,
+        EXCEL_PROCESS_SCHEMA,
+        BROWSER_USE_SCHEMA,
+        DOCKER_MANAGE_SCHEMA,
+        DEPLOY_PUSH_SCHEMA,
+        AGENT_CREATE_SCHEMA,
+        TOOL_REGISTER_SCHEMA,
     )
 
     tool_registry.register_builtin_tool("http_request", http_request_tool, HTTP_REQUEST_SCHEMA)
@@ -77,6 +101,18 @@ def ensure_builtin_tools_registered() -> None:
     tool_registry.register_builtin_tool("url_parse", url_parse_tool, URL_PARSE_SCHEMA)
     tool_registry.register_builtin_tool("regex_test", regex_test_tool, REGEX_TEST_SCHEMA)
     tool_registry.register_builtin_tool("agent_call", agent_call_tool, AGENT_CALL_SCHEMA)
+    tool_registry.register_builtin_tool("code_execute", code_execute_tool, CODE_EXECUTE_SCHEMA)
+    tool_registry.register_builtin_tool("git_operation", git_operation_tool, GIT_OPERATION_SCHEMA)
+    tool_registry.register_builtin_tool("web_search", web_search_tool, WEB_SEARCH_SCHEMA)
+    tool_registry.register_builtin_tool("pdf_generate", pdf_generate_tool, PDF_GENERATE_SCHEMA)
+    tool_registry.register_builtin_tool("project_scaffold", project_scaffold_tool, PROJECT_SCAFFOLD_SCHEMA)
+    tool_registry.register_builtin_tool("task_plan", task_plan_tool, TASK_PLAN_SCHEMA)
+    tool_registry.register_builtin_tool("excel_process", excel_process_tool, EXCEL_PROCESS_SCHEMA)
+    tool_registry.register_builtin_tool("browser_use", browser_use_tool, BROWSER_USE_SCHEMA)
+    tool_registry.register_builtin_tool("docker_manage", docker_manage_tool, DOCKER_MANAGE_SCHEMA)
+    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)
     _registered = True
 
     n = tool_registry.builtin_tool_count()