Fix: Standardize Electron bridge and implement robust caching

- Refactored all IPC methods and parameters to snake_case for consistency with SvelteKit.
- Implemented exhaustive background caching engine with download locking.
- Reverted to legacy-proven flat hash storage pattern (hash.file).
- Added axios for reliable stream-based binary downloads.
- Updated preload and main handlers to support recursive room data fetching.

dist/main/api_client.js

@@ -28,7 +28,6 @@ async function fetchFullConfig(seed) {
             const deviceData = deviceResult.data || deviceResult;
             // Use 'app_base_url' as the FQDN for the site lookup
             const fqdn = deviceData.app_base_url || 'native-demo.oneskyit.com';
-            console.log(`Bootstrap Step 1 Success: Device identified. FQDN to use: ${fqdn}`);
             // --- STEP 2: Get Site Context ---
             const searchUrl = `${baseUrl}/v3/crud/site_domain/search`;
             const siteResponse = await fetch(searchUrl, {
@@ -54,7 +53,8 @@ async function fetchFullConfig(seed) {
             console.log(`Bootstrap Success using ${baseUrl}`);
             return {
                 ...siteDomain,
-                native_device: deviceData
+                native_device: deviceData,
+                aether_api_key: seed.aether_api_key // Include the key for frontend use
             };
         }
         catch (error) {