Resolve production errors and improve system stability and reliability

Fix critical production errors, including Bad Gateway issues and TypeScript compilation failures, by implementing comprehensive route registration, correcting service configurations, and ensuring production build success.

Replit-Commit-Author: Agent
Replit-Commit-Session-Id: 7c468936-2a88-4686-ac0a-84921a45222d
Replit-Commit-Checkpoint-Type: full_checkpoint
Replit-Commit-Screenshot-Url: https://storage.googleapis.com/screenshot-production-us-central1/1957c339-2757-4d1f-8e92-e9f71a1ce58e/7c468936-2a88-4686-ac0a-84921a45222d/cH9Kvea

server/storage.ts

@@ -1687,7 +1687,7 @@ export class MemStorage implements IStorage {
       status: 'En attente de Commande',
       isPromotionalPrice: false,
       customerNotified: false,
-      notes: 'Livraison urgente demandée',
+      notes: 'Livraison urgente demandée' as string | null,
       createdAt: new Date('2025-01-15'),
       updatedAt: new Date('2025-01-15'),
     };
@@ -1709,7 +1709,7 @@ export class MemStorage implements IStorage {
       status: 'Commande passée',
       isPromotionalPrice: true,
       customerNotified: true,
-      notes: null,
+      notes: null as string | null,
       createdAt: new Date('2025-01-10'),
       updatedAt: new Date('2025-01-12'),
     };
@@ -1731,10 +1731,10 @@ export class MemStorage implements IStorage {
       status: 'en_cours',
       quantity: 24,
       unit: 'pièces',
-      notes: 'À vendre rapidement',
+      notes: 'À vendre rapidement' as string | null,
       location: 'Frigo principal',
       alertThreshold: 5,
-      validatedBy: null,
+      validatedBy: null as string | null,
       validatedAt: null,
       createdAt: new Date('2025-08-10'),
       updatedAt: new Date('2025-08-10'),
@@ -1752,10 +1752,10 @@ export class MemStorage implements IStorage {
       status: 'alerte',
       quantity: 8,
       unit: 'unités',
-      notes: 'DLC proche, promotion conseillée',
+      notes: 'DLC proche, promotion conseillée' as string | null,
       location: 'Rayonnage A3',
       alertThreshold: 3,
-      validatedBy: null,
+      validatedBy: null as string | null,
       validatedAt: null,
       createdAt: new Date('2025-08-08'),
       updatedAt: new Date('2025-08-13'),