Fix PostgreSQL adapter installation and resolve TypeScript relation errors

src/app/api/inventory/adjust/route.ts

@@ -41,8 +41,10 @@ export async function POST(request: NextRequest) {
       where: {
         userId: session.user.id,
         organization: {
-          store: {
-            id: storeId
+          stores: {
+            some: {
+              id: storeId
+            }
           }
         }
       }

src/app/api/inventory/bulk/route.ts

@@ -70,8 +70,10 @@ export async function POST(request: NextRequest) {
       where: {
         userId: session.user.id,
         organization: {
-          store: {
-            id: storeId
+          stores: {
+            some: {
+              id: storeId
+            }
           }
         }
       }

src/app/api/inventory/history/route.ts

@@ -37,8 +37,10 @@ export async function GET(request: NextRequest) {
         where: {
           userId: session.user.id,
           organization: {
-            store: {
-              id: storeId
+            stores: {
+              some: {
+                id: storeId
+              }
             }
           }
         }

src/app/api/inventory/low-stock/route.ts

@@ -34,8 +34,10 @@ export async function GET(request: NextRequest) {
         where: {
           userId: session.user.id,
           organization: {
-            store: {
-              id: storeId
+            stores: {
+              some: {
+                id: storeId
+              }
             }
           }
         }

src/app/api/store-staff/route.ts

@@ -50,8 +50,10 @@ export async function GET(request: NextRequest) {
       where: {
         userId: session.user.id,
         organization: {
-          store: {
-            id: storeId,
+          stores: {
+            some: {
+              id: storeId,
+            },
           },
         },
       },
@@ -117,8 +119,10 @@ export async function POST(request: NextRequest) {
       where: {
         userId: session.user.id,
         organization: {
-          store: {
-            id: validatedData.storeId,
+          stores: {
+            some: {
+              id: validatedData.storeId,
+            },
           },
         },
       },

src/app/api/stores/[id]/role-requests/[requestId]/route.ts

@@ -320,7 +320,7 @@ async function checkStoreAccess(userId: string, storeId: string): Promise<boolea
       },
       memberships: {
         where: {
-          organization: { store: { id: storeId } },
+          organization: { stores: { some: { id: storeId } } },
         },
         select: { id: true },
       },
@@ -345,7 +345,7 @@ async function checkStoreAdminAccess(userId: string, storeId: string): Promise<b
       },
       memberships: {
         where: {
-          organization: { store: { id: storeId } },
+          organization: { stores: { some: { id: storeId } } },
           role: { in: ['OWNER', 'ADMIN'] },
         },
         select: { id: true },

src/app/api/stores/[id]/role-requests/route.ts

@@ -361,7 +361,7 @@ async function checkStoreAccess(userId: string, storeId: string): Promise<boolea
       },
       memberships: {
         where: {
-          organization: { store: { id: storeId } },
+          organization: { stores: { some: { id: storeId } } },
         },
         select: { id: true },
       },
@@ -394,7 +394,7 @@ async function checkStoreAdminAccess(userId: string, storeId: string): Promise<b
       },
       memberships: {
         where: {
-          organization: { store: { id: storeId } },
+          organization: { stores: { some: { id: storeId } } },
           role: { in: ['OWNER', 'ADMIN'] },
         },
         select: { id: true },

src/app/api/stores/[id]/staff/[staffId]/route.ts

@@ -31,7 +31,7 @@ async function checkStoreAccess(userId: string, storeId: string): Promise<{ hasA
     where: {
       userId,
       role: 'OWNER',
-      organization: { store: { id: storeId } }
+      organization: { stores: { some: { id: storeId } } }
     },
   });
 
@@ -46,7 +46,7 @@ async function checkStoreAccess(userId: string, storeId: string): Promise<{ hasA
   }
 
   const membership = await prisma.membership.findFirst({
-    where: { userId, organization: { store: { id: storeId } } },
+    where: { userId, organization: { stores: { some: { id: storeId } } } },
   });
 
   if (membership) {

src/app/api/stores/[id]/staff/accept-invite/route.ts

@@ -66,11 +66,12 @@ export async function POST(
     const ownerMembership = await prisma.membership.findFirst({
       where: {
         role: 'OWNER',
-        organization: { store: { id: storeId } },
+        organization: { stores: { some: { id: storeId } } },
       },
-      select: { 
-        userId: true,
-        user: { select: { name: true, email: true } },
+      include: {
+        user: {
+          select: { name: true, email: true },
+        },
       },
     });
 
@@ -169,7 +170,7 @@ export async function DELETE(
     const ownerMembership = await prisma.membership.findFirst({
       where: {
         role: 'OWNER',
-        organization: { store: { id: storeId } },
+        organization: { stores: { some: { id: storeId } } },
       },
       select: { userId: true },
     });

src/app/api/stores/[id]/staff/route.ts

@@ -40,7 +40,7 @@ async function checkStoreAccess(userId: string, storeId: string): Promise<{ hasA
       userId,
       role: 'OWNER',
       organization: {
-        store: { id: storeId }
+        stores: { some: { id: storeId } }
       }
     },
   });
@@ -68,7 +68,7 @@ async function checkStoreAccess(userId: string, storeId: string): Promise<{ hasA
     where: {
       userId,
       organization: {
-        store: { id: storeId }
+        stores: { some: { id: storeId } }
       }
     },
   });

src/app/api/subscriptions/route.ts

@@ -55,8 +55,10 @@ export async function GET(request: NextRequest) {
       where: {
         userId: session.user.id,
         organization: {
-          store: {
-            id: storeId,
+          stores: {
+            some: {
+              id: storeId,
+            },
           },
         },
       },
@@ -162,8 +164,10 @@ export async function POST(request: NextRequest) {
       where: {
         userId: session.user.id,
         organization: {
-          store: {
-            id: storeId,
+          stores: {
+            some: {
+              id: storeId,
+            },
           },
         },
       },

src/app/dashboard/stores/[storeId]/roles/page.tsx

@@ -48,7 +48,7 @@ export default async function StoreRolesPage({ params, searchParams }: PageProps
       userId: session.user.id,
       role: 'OWNER',
       organization: {
-        store: { id: storeId }
+        stores: { some: { id: storeId } }
       }
     },
   });

src/app/dashboard/stores/[storeId]/roles/request/page.tsx

@@ -38,25 +38,26 @@ export default async function RequestRolePage({ params }: PageProps) {
       userId: session.user.id,
       role: 'OWNER',
       organization: {
-        store: { id: storeId }
+        stores: { some: { id: storeId } }
       }
     },
     include: {
       organization: {
         include: {
-          store: {
+          stores: {
+            where: { id: storeId },
             select: { id: true, name: true },
           },
         },
       },
     },
   });
 
-  if (!ownerMembership?.organization?.store) {
+  if (!ownerMembership?.organization?.stores?.[0]) {
     notFound();
   }
 
-  const store = ownerMembership.organization.store;
+  const store = ownerMembership.organization.stores[0];
 
   // Check existing custom roles count
   const existingRolesCount = await prisma.customRole.count({

src/app/dashboard/stores/[storeId]/staff/page.tsx

@@ -45,7 +45,7 @@ export default async function StoreStaffPage({ params, searchParams }: PageProps
       userId: session.user.id,
       role: 'OWNER',
       organization: {
-        store: { id: storeId }
+        stores: { some: { id: storeId } }
       }
     },
   });

src/app/dashboard/stores/[storeId]/staff/staff-list.tsx

@@ -89,7 +89,7 @@ export async function StaffList({
     where: {
       role: 'OWNER',
       organization: {
-        store: { id: storeId }
+        stores: { some: { id: storeId } }
       }
     },
     include: {

src/lib/auth-helpers.ts

@@ -56,7 +56,7 @@ export async function getUserContext(): Promise<UserContext | null> {
         include: {
           organization: {
             include: {
-              store: true,
+              stores: true,
             },
           },
         },
@@ -107,7 +107,7 @@ export async function getUserContext(): Promise<UserContext | null> {
   const organizationRole = membership?.role;
   const organizationId = membership?.organizationId;
   const storeRole = storeStaff?.role;
-  const storeId = storeStaff?.storeId || membership?.organization?.store?.id;
+  const storeId = storeStaff?.storeId || membership?.organization?.stores?.[0]?.id;
 
   // Determine effective role (highest level role takes precedence)
   let effectiveRole: Role | undefined;

src/lib/auth.ts

@@ -148,7 +148,7 @@ export const authOptions: NextAuthOptions = {
           session.user.organizationRole = membership?.role ?? undefined;
           session.user.organizationId = membership?.organizationId ?? undefined;
           session.user.storeRole = storeStaff?.role ?? undefined;
-          session.user.storeId = storeStaff?.storeId || membership?.organization?.store?.id;
+          session.user.storeId = storeStaff?.storeId || membership?.organization?.stores?.[0]?.id;
 
           // Compute permissions
           const { getPermissions } = await import('./permissions');

src/lib/get-current-user.ts

@@ -47,7 +47,7 @@ export async function getCurrentStoreId(): Promise<string | null> {
     include: {
       organization: {
         include: {
-          store: true,
+          stores: true,
         },
       },
     },
@@ -57,7 +57,7 @@ export async function getCurrentStoreId(): Promise<string | null> {
   });
 
   // Return store ID if organization has a store
-  return membership?.organization?.store?.id || null;
+  return membership?.organization?.stores?.[0]?.id || null;
 }
 
 /**
@@ -79,7 +79,7 @@ export async function getCurrentStore() {
     include: {
       organization: {
         include: {
-          store: true,
+          stores: true,
         },
       },
     },
@@ -88,7 +88,7 @@ export async function getCurrentStore() {
     },
   });
 
-  return membership?.organization?.store || null;
+  return membership?.organization?.stores?.[0] || null;
 }
 
 /**
@@ -165,8 +165,10 @@ export async function verifyStoreAccess(storeId: string): Promise<boolean> {
     where: {
       userId: session.user.id,
       organization: {
-        store: {
-          id: storeId,
+        stores: {
+          some: {
+            id: storeId,
+          },
         },
       },
     },

src/lib/services/store.service.ts

@@ -66,12 +66,12 @@ export const UpdateStoreSchema = z.object({
   }).optional(),
 }).transform((data) => {
   // Create new object with only defined fields (not undefined)
-  const result: Record<string, any> = {};
+  const result: Record<string, unknown> = {};
 
   // Copy all fields except domain and settings, but only if they're not undefined
   Object.keys(data).forEach(key => {
     if (key !== 'domain' && key !== 'settings') {
-      const value = (data as any)[key];
+      const value = data[key as keyof typeof data];
       if (value !== undefined) {
         result[key] = value;
       }