feat: RBAC Phase 1 — consolidate user roles into 4-value enum

Consolidate User.role (2-value: admin/store) + User.is_super_admin (boolean)
into a single 4-value UserRole enum: super_admin, platform_admin,
merchant_owner, store_member. Drop stale StoreUser.user_type column.
Fix role="user" bug in merchant creation.

Key changes:
- Expand UserRole enum from 2 to 4 values with computed properties
  (is_admin, is_super_admin, is_platform_admin, is_merchant_owner, is_store_user)
- Add Alembic migration (tenancy_003) for data migration + column drops
- Remove is_super_admin from JWT token payload
- Update all auth dependencies, services, routes, templates, JS, and tests
- Update all RBAC documentation

66 files changed, 1219 unit tests passing.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

app/modules/tenancy/tests/integration/test_email_verification_routes.py

@@ -34,7 +34,7 @@ def ev_unverified_user(db):
         email=f"unverified_{uid}@test.com",
         username=f"unverified_{uid}",
         hashed_password=auth.hash_password("testpass123"),  # noqa: SEC001
-        role="store",
+        role="merchant_owner",
         is_active=True,
         is_email_verified=False,
     )
@@ -55,7 +55,7 @@ def ev_verified_user(db):
         email=f"verified_{uid}@test.com",
         username=f"verified_{uid}",
         hashed_password=auth.hash_password("testpass123"),  # noqa: SEC001
-        role="store",
+        role="merchant_owner",
         is_active=True,
         is_email_verified=True,
     )

app/modules/tenancy/tests/integration/test_merchant_auth_routes.py

@@ -33,7 +33,7 @@ def ma_owner(db):
         email=f"maowner_{uid}@test.com",
         username=f"maowner_{uid}",
         hashed_password=auth.hash_password("mapass123"),
-        role="store",
+        role="merchant_owner",
         is_active=True,
         is_email_verified=True,
     )
@@ -70,7 +70,7 @@ def ma_non_merchant_user(db):
         email=f"nonmerch_{uid}@test.com",
         username=f"nonmerch_{uid}",
         hashed_password=auth.hash_password("nonmerch123"),
-        role="store",
+        role="merchant_owner",
         is_active=True,
         is_email_verified=True,
     )
@@ -91,7 +91,7 @@ def ma_inactive_user(db):
         email=f"inactive_{uid}@test.com",
         username=f"inactive_{uid}",
         hashed_password=auth.hash_password("inactive123"),
-        role="store",
+        role="merchant_owner",
         is_active=False,
     )
     db.add(user)

app/modules/tenancy/tests/integration/test_merchant_password_reset.py

@@ -32,7 +32,7 @@ def mpr_user(db):
         email=f"mpr_{uid}@test.com",
         username=f"mpr_{uid}",
         hashed_password=auth.hash_password("oldpass123"),  # noqa: SEC001
-        role="store",
+        role="merchant_owner",
         is_active=True,
         is_email_verified=True,
     )
@@ -69,7 +69,7 @@ def mpr_inactive_user(db):
         email=f"mpri_{uid}@test.com",
         username=f"mpri_{uid}",
         hashed_password=auth.hash_password("inactive123"),  # noqa: SEC001
-        role="store",
+        role="merchant_owner",
         is_active=False,
         is_email_verified=True,
     )

app/modules/tenancy/tests/integration/test_merchant_routes.py

@@ -36,7 +36,7 @@ def mt_owner(db):
         email=f"mtowner_{uid}@test.com",
         username=f"mtowner_{uid}",
         hashed_password=auth.hash_password("mtpass123"),
-        role="store",
+        role="merchant_owner",
         is_active=True,
     )
     db.add(user)
@@ -95,7 +95,7 @@ def mt_auth(mt_owner, mt_merchant):
         id=mt_owner.id,
         email=mt_owner.email,
         username=mt_owner.username,
-        role="store",
+        role="merchant_owner",
         is_active=True,
     )
 

app/modules/tenancy/tests/integration/test_store_password_reset.py

@@ -12,7 +12,6 @@ import uuid
 import pytest
 
 from app.modules.tenancy.models import Merchant, Store, StoreUser, User
-from app.modules.tenancy.models.store import StoreUserType
 from app.modules.tenancy.models.user_password_reset_token import UserPasswordResetToken
 
 # ============================================================================
@@ -33,7 +32,7 @@ def spr_owner(db):
         email=f"spr_{uid}@test.com",
         username=f"spr_{uid}",
         hashed_password=auth.hash_password("storepass123"),  # noqa: SEC001
-        role="store",
+        role="merchant_owner",
         is_active=True,
         is_email_verified=True,
     )
@@ -83,7 +82,6 @@ def spr_store_user(db, spr_owner, spr_store):
     store_user = StoreUser(
         user_id=spr_owner.id,
         store_id=spr_store.id,
-        user_type=StoreUserType.OWNER.value,
         is_active=True,
     )
     db.add(store_user)