Enable console debugging and add debug statements

- Enable console logging in vite.config.ts:
  - Set drop_console to false
  - Disabled pure_funcs stripping for console.log
  - Changed esbuild to only drop debugger, keep console

- Add debug logging to auth-gate.ts:
  - Log setAuthInitialized calls

- Add debug logging to useSavedStations.ts:
  - Log hook invocations
  - Log query function execution and results
  - Added retry configuration

- Add debug logging to StationsPage.tsx:
  - Log component renders
  - Log useSavedStations result state

These logs will show us what's happening with auth initialization and
query state transitions that are causing the React DOM removeChild error.

🤖 Generated with Claude Code

Co-Authored-By: Claude <noreply@anthropic.com>

frontend/vite.config.ts

@@ -57,9 +57,9 @@ export default defineConfig({
     minify: 'terser',
     terserOptions: {
       compress: {
-        drop_console: true, // Remove console logs in production
+        drop_console: false, // DEBUGGING: Keep console logs enabled
         drop_debugger: true,
-        pure_funcs: ['console.log', 'console.info', 'console.debug'],
+        // pure_funcs: ['console.log', 'console.info', 'console.debug'], // DEBUGGING: Disabled for console output
       },
       mangle: {
         safari10: true, // Ensure Safari 10 compatibility
@@ -71,6 +71,6 @@ export default defineConfig({
   },
   // Production optimizations
   esbuild: {
-    drop: ['console', 'debugger'], // Additional cleanup
+    drop: ['debugger'], // DEBUGGING: Keep console, only drop debugger
   },
 });