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.

public/meta.json.example

@@ -0,0 +1,11 @@
+{
+  "version": "1735689600000",
+  "buildVersion": "1735689600000",
+  "appVersion": "1.0.0",
+  "buildTime": "2025-01-01T00:00:00.000Z",
+  "buildId": "1735689600000",
+  "gitHash": null,
+  "generated": true,
+  "generatedAt": "2025-01-01T00:00:00.000Z"
+}
+