feat: implement cookie priority hierarchy (URL param > env var > file) for Facebook and eBay scrapers

packages/mcp-server/src/protocol/handler.ts

@@ -207,6 +207,7 @@ export async function handleMcpRequest(req: Request): Promise<Response> {
             params.append("canadaOnly", args.canadaOnly.toString());
           if (args.maxItems)
             params.append("maxItems", args.maxItems.toString());
+          if (args.cookies) params.append("cookies", args.cookies);
 
           console.log(
             `[MCP] Calling eBay API: ${API_BASE_URL}/ebay?${params.toString()}`,

packages/mcp-server/src/protocol/tools.ts

@@ -133,6 +133,11 @@ export const tools = [
           description: "Maximum number of items to return",
           default: 5,
         },
+        cookies: {
+          type: "string",
+          description:
+            "Optional: eBay session cookies to bypass bot detection (format: 'name1=value1; name2=value2')",
+        },
       },
       required: ["query"],
     },