fix(tenancy): fix team CRUD bugs + add member integration tests

Store team page:
- Fix undefined user_id (API returns `id`, JS used `user_id`)
- Fix wrong URL path in updateMember (remove redundant storeCode)
- Fix update_member_role route passing wrong kwarg (new_role_id → new_role_name)
- Add update_member() service method for role_id + is_active updates
- Add :selected binding for role pre-selection in edit modal

Merchant team page:
- Add missing db.commit() on invite, update, and remove endpoints
- Fix forward-reference string type annotation on MerchantTeamInvite
- Add :selected binding for role pre-selection in edit modal

Shared fixes:
- Replace removed subscription_service.check_team_limit with usage_service
- Replace removed subscription_service.get_current_tier in email service
- Fix email config bool settings crashing on .lower() (value_type=boolean)

Tests: 15 new integration tests for store team member API endpoints.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

app/modules/tenancy/routes/api/merchant.py

@@ -25,6 +25,7 @@ from app.modules.tenancy.schemas import (
     MerchantStoreUpdate,
 )
 from app.modules.tenancy.schemas.auth import UserContext
+from app.modules.tenancy.schemas.team import MerchantTeamInvite
 from app.modules.tenancy.services.merchant_service import merchant_service
 from app.modules.tenancy.services.merchant_store_service import merchant_store_service
 
@@ -192,7 +193,7 @@ async def merchant_team_store_roles(
 
 @_account_router.post("/team/invite")
 async def merchant_team_invite(
-    data: "MerchantTeamInvite",
+    data: MerchantTeamInvite,
     current_user: UserContext = Depends(get_current_merchant_api),
     merchant=Depends(get_merchant_for_current_user),
     db: Session = Depends(get_db),
@@ -233,6 +234,7 @@ async def merchant_team_invite(
                 error=str(e),
             ))
 
+    db.commit()
     success_count = sum(1 for r in results if r.success)
     if success_count == len(results):
         message = f"Invitation sent to {data.email} for {success_count} store(s)"
@@ -268,6 +270,7 @@ async def merchant_team_update_role(
         new_role_name=role_name,
         actor_user_id=current_user.id,
     )
+    db.commit()
     return {"message": "Role updated successfully"}
 
 
@@ -289,6 +292,7 @@ async def merchant_team_remove_member(
         user_id=user_id,
         actor_user_id=current_user.id,
     )
+    db.commit()
 
 
 @_account_router.get("/profile", response_model=MerchantPortalProfileResponse)

app/modules/tenancy/routes/api/store_team.py

@@ -277,12 +277,13 @@ def update_team_member(
     """
     store = request.state.store
 
-    store_team_service.update_member_role(
+    store_team_service.update_member(
         db=db,
         store=store,
         user_id=user_id,
-        new_role_id=update_data.role_id,
+        role_id=update_data.role_id,
         is_active=update_data.is_active,
+        actor_user_id=current_user.id,
     )
     db.commit()