Disable mock-source in production

- Set mock-source scraper to disabled in config
- Remove mock-source from data loader sources list
- Mock data still available for local development/testing

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <[email protected]>

Author: quicklywilliam

scrapers/mock-source/config.json

@@ -1,5 +1,5 @@
 {
-  "enabled": true,
+  "enabled": false,
   "source_name": "mock-source",
   "rate_limit_delay_ms": 1000
 }

src/services/dataLoader.js

@@ -2,7 +2,7 @@ export async function loadAllData() {
   // For local dev, fetch from /data directory
   // For production, fetch from GitHub raw URL or relative path
 
-  const sources = ['mock-source', 'carmax', 'carvana', 'plattauto'];
+  const sources = ['carmax', 'carvana', 'plattauto'];
   const dates = getLast7Days();
 
   const promises = [];