feat(auth): add authentication endpoints (#6265)

**What**
- Add authentication endpoints: 
  - `/auth/[scope]/[provider]` 
  - `/auth/[scope]/[provider]/callback`
- update authenticate-middleware handler
- Add scope field to user
- Add unique constraint on scope and entity_id

note: there's still some remaining work related to jwt auth to be handled, this is mainly focussed on session auth with endpoints



Co-authored-by: Sebastian Rindom <7554214+srindom@users.noreply.github.com>

packages/auth/integration-tests/__tests__/services/module/auth-user.spec.ts

@@ -246,6 +246,7 @@ describe("AuthModuleService - AuthUser", () => {
           id: "test",
           provider_id: "manual",
           entity_id: "test",
+          scope: "store",
         },
       ])
 

packages/auth/integration-tests/__tests__/services/module/providers.spec.ts

@@ -83,7 +83,7 @@ describe("AuthModuleService - AuthProvider", () => {
       const { success, error } = await service.authenticate(
         "emailpass",
         {
-          scope: "non-existing",
+          authScope: "non-existing",
         } as any
       )