feat: implement comprehensive PWA force update system

- Add UpdateManager and UpdateChecker for automatic version detection
- Add post-build script for meta.json generation and version injection
- Enhance Service Worker with version-aware caching
- Add .htaccess configuration for proper cache control

This ensures all users receive the latest version after deployment
without manual cache clearing.

meta.json

@@ -0,0 +1,10 @@
+{
+  "version": "1767018751497",
+  "buildVersion": "1767018751497",
+  "appVersion": "4.7.55",
+  "buildTime": "2025-12-29T14:32:31.569Z",
+  "buildId": "1767018751497-1b6431a",
+  "gitHash": "1b6431a",
+  "generated": true,
+  "generatedAt": "2025-12-29T14:32:31.571Z"
+}