Environment & Bootstrap Stability: Fix Ghost Account and Modernize PWA Manifest

- Resolved 'Ghost Account' warning by updating layout hydration to align with V3 ID Vision (account_id vs account_id_random).
- Improved site lookup reliability using Agent API Key and structured EQ filters for exact FQDN matching (including ports).
- Modernized PWA manifest with maskable icons (PNG/WebP), app shortcuts, and unique installation IDs.
- Implemented automatic Electron 'Native' mode detection in root layout.
- Fixed stale API URLs in Launcher native file download logic.
- Added V3 migration documentation and JWT verification test scripts.

src/routes/events/[event_id]/(launcher)/launcher_file_cont.svelte

@@ -187,14 +187,14 @@
                 console.log('Cached hash file found.');
             } else if (check_hash_file_cache_result == null) {
                 console.log(
-                    `Cached hash file not found. Need to download from API server. Base URL ${$events_loc.launcher.api.base_url}`
+                    `Cached hash file not found. Need to download from API server. Base URL ${$ae_api.base_url}`
                 );
                 open_file_status = 'downloading_file';
                 open_file_status_message = 'Downloading file...';
                 let download_hash_file_to_cache_result =
                     await window.native_app.download_hash_file_to_cache_v2({
-                        api_base_url: $events_loc.launcher.api.base_url,
-                        api_base_url_backup: $events_loc.launcher.api.base_url_backup,
+                        api_base_url: $ae_api.base_url,
+                        api_base_url_backup: $ae_api.base_url_bak,
                         local_file_cache_path: $events_loc.launcher.local_file_cache_path,
                         event_file_id: event_file_id,
                         hash: event_file_obj.hash_sha256,