feat: add Sora admin backend and fix type inconsistencies

Backend changes:
- Add SoraHandler for admin Sora management APIs
  - GET /api/v1/admin/sora/stats - system statistics
  - GET /api/v1/admin/sora/users - user storage stats
  - GET /api/v1/admin/sora/generations - generation records
  - DELETE /api/v1/admin/sora/users/:id/storage - clear user storage
- Add sora_storage_quota_bytes to AdminUser DTO
- Add SoraStorageQuotaBytes to UpdateUserInput for admin user updates
- Add comprehensive tests for SoraHandler

Frontend changes:
- Add soraAdminAPI for Sora management
- Add sora_storage_quota_bytes and sora_storage_used_bytes to AdminUser type
- Add Sora storage quota field to UserEditModal (GB unit)
- Fix UsageLog type: add media_type, fix duration_ms to optional
- Fix AdminUsageLog type: add channel_id, billing_tier

Test fixes:
- Add window.matchMedia mock to AccountUsageCell.spec.ts
- Add tlsFingerprintProfileAPI mock to EditAccountModal.spec.ts
- Fix loadTLSProfiles function order in EditAccountModal.vue
- Fix translation key references in AccountStatusIndicator.spec.ts

backend/internal/handler/wire.go

@@ -35,6 +35,7 @@ func ProvideAdminHandlers(
 	scheduledTestHandler *admin.ScheduledTestHandler,
 	channelHandler *admin.ChannelHandler,
 	paymentHandler *admin.PaymentHandler,
+	soraHandler *admin.SoraHandler,
 ) *AdminHandlers {
 	return &AdminHandlers{
 		Dashboard:             dashboardHandler,
@@ -63,6 +64,7 @@ func ProvideAdminHandlers(
 		ScheduledTest:         scheduledTestHandler,
 		Channel:               channelHandler,
 		Payment:               paymentHandler,
+		Sora:                  soraHandler,
 	}
 }
 
@@ -163,6 +165,7 @@ var ProviderSet = wire.NewSet(
 	admin.NewScheduledTestHandler,
 	admin.NewChannelHandler,
 	admin.NewPaymentHandler,
+	admin.NewSoraHandler,
 
 	// AdminHandlers and Handlers constructors
 	ProvideAdminHandlers,