v2: fix action routes (proper method paths), complete REST Action API

- GET /api/v1/actions (discovery, 47 actions), GET /api/v1/actions/:id (contract)
- POST /api/v1/actions/:actionId (unified execute via Action Runtime)
- GET /api/v1/v2/resources (resource discovery)
- legacy bridge wraps WorkspaceAction.run into execute (fixed registration)
- ActionContext.organizationId used by legacy bridge for workspace scoping

apps/api/src/v2/adapters/v2-resources.controller.ts

@@ -0,0 +1,16 @@
+/**
+ * # Resource Discovery 控制器（docs 03 §90；/api/v1/v2/resources）
+ */
+import { Controller, Get } from "@nestjs/common";
+import { ActionRuntime } from "../runtime/action-runtime";
+
+@Controller("v2/resources")
+export class V2ResourcesController {
+  constructor(private readonly runtime: ActionRuntime) {}
+
+  /** # 资源发现 */
+  @Get()
+  list() {
+    return this.runtime.discoverResources();
+  }
+}