Enable creating new support tickets within the SAV module

Add a modal and mutation to create new SAV tickets, including form handling and error feedback.

Replit-Commit-Author: Agent
Replit-Commit-Session-Id: 31f9bd88-0285-4787-81b3-31ceeea5a08b
Replit-Commit-Checkpoint-Type: full_checkpoint
Replit-Commit-Screenshot-Url: https://storage.googleapis.com/screenshot-production-us-central1/1957c339-2757-4d1f-8e92-e9f71a1ce58e/31f9bd88-0285-4787-81b3-31ceeea5a08b/tftmNHr

server/migrations.production.ts

@@ -62,9 +62,9 @@ export async function runProductionMigrations() {
   } catch (error) {
     console.error('❌ MIGRATION ERROR: Failed to run SAV production migrations:', error);
     console.error('❌ MIGRATION ERROR: Error details:', {
-      message: error?.message,
-      code: error?.code,
-      stack: error?.stack
+      message: (error as any)?.message,
+      code: (error as any)?.code,
+      stack: (error as any)?.stack
     });
     // Ne pas faire échouer le démarrage du serveur pour les erreurs de migration
   } finally {