feat(25-02): add MCP catalog tools upsert_catalog_item and bulk_upsert_catalog

- New catalog.ts with catalogToolDefinitions and registerCatalogTools
- upsert_catalog_item: single item upsert with full attribution fields (SEED-03)
- bulk_upsert_catalog: batch upsert up to 100 items with created/updated counts
- Registered in createMcpServer after image tools
- 6 new MCP catalog tool tests passing

src/server/mcp/index.ts

@@ -6,6 +6,10 @@ import { db as prodDb } from "../../db/index.ts";
 import { verifyApiKey } from "../services/auth.service.ts";
 import { verifyAccessToken } from "../services/oauth.service.ts";
 import { getCollectionSummary } from "./resources/collection.ts";
+import {
+	catalogToolDefinitions,
+	registerCatalogTools,
+} from "./tools/catalog.ts";
 import {
 	categoryToolDefinitions,
 	registerCategoryTools,
@@ -55,6 +59,13 @@ function createMcpServer(db: Db, userId: number): McpServer {
 		server.tool(def.name, def.description, def.inputSchema, handler);
 	}
 
+	// Register catalog tools (no userId needed — catalog is global)
+	const catalogHandlers = registerCatalogTools(db);
+	for (const def of catalogToolDefinitions) {
+		const handler = catalogHandlers[def.name as keyof typeof catalogHandlers];
+		server.tool(def.name, def.description, def.inputSchema, handler);
+	}
+
 	// Register collection summary resource
 	server.resource(
 		"collection-summary",