modify: 修复未找到如何 RPC 方法的问题

src/chongming/app/core/lifespan_setup.py

@@ -244,9 +244,15 @@ def _discover_plugins() -> list[dict]:
         if not workers_section:
             continue
 
-        # 合并运行时 config: 整个 TOML 顶层 + [workers.config] 展平
+        # 合并运行时 config:
+        #   1. plugin_conf 顶层 (worker, worker.registration 等 gen_models 用)
+        #   2. [workers] 节的注册字段展平 (type, module, factory, cleanup, count)
+        #      — 其中 type 被 chongming_worker.runtime.create_workers 用于匹配 RPC 方法
+        #   3. [workers.config] 展平到顶层 (api_key, data_dir, heartbeat 等)
+        workers_flat = {k: v for k, v in workers_section.items() if k != "config"}
         runtime_config = {
             **plugin_conf,
+            **workers_flat,
             **workers_section.get("config", {}),
         }