feat(mobile): Add all missing screen registrations and fixes

- Add screen registrations to AppNavigator (P2P, Forum, TaxZekat,
  Launchpad, President, Vote, Validators, Proposals, Identity,
  KurdMedia, Perwerde, B2B)
- Fix supabase.ts with hardcoded fallback credentials for production
- Fix Home tab header (headerShown: false)
- Add new screen components for mini apps
- Update DashboardScreen with proper navigation and alerts

mobile/metro.config.cjs

@@ -46,4 +46,12 @@ if (!config.resolver.sourceExts.includes('svg')) {
 
 // Polyfills will be resolved from project's own node_modules
 
+// ============================================
+// PACKAGE EXPORTS RESOLUTION
+// ============================================
+
+// Disable strict package exports checking for packages like @noble/hashes
+// that don't properly export all their submodules
+config.resolver.unstable_enablePackageExports = false;
+
 module.exports = config;