fix(scripts): fix model registration and missing platform_id in init scripts

All init scripts (init_log_settings, create_default_content_pages,
create_platform_pages, seed_email_templates) failed because they didn't
register all SQLAlchemy model classes, causing mapper resolution errors
for cross-module relationships (Platform→ContentPage, Platform→SubscriptionTier).

Fixes:
- Add full model registration loop to all 5 init scripts
- Add platform_id (OMS) to content page creation (NOT NULL constraint)
- Add missing db.commit() to create_platform_pages.py (pages were never persisted)
- Add cms.models to init_production.py registration list

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

scripts/create_default_content_pages.py

@@ -36,8 +36,27 @@ sys.path.insert(0, str(project_root))
 from sqlalchemy import select
 from sqlalchemy.orm import Session
 
+# Register all models with SQLAlchemy so string-based relationships resolve
+for _mod in [
+    "app.modules.billing.models",
+    "app.modules.inventory.models",
+    "app.modules.cart.models",
+    "app.modules.messaging.models",
+    "app.modules.loyalty.models",
+    "app.modules.catalog.models",
+    "app.modules.customers.models",
+    "app.modules.orders.models",
+    "app.modules.marketplace.models",
+    "app.modules.cms.models",
+]:
+    try:
+        __import__(_mod)
+    except ImportError:
+        pass
+
 from app.core.database import SessionLocal
 from app.modules.cms.models import ContentPage
+from app.modules.tenancy.models import Platform
 
 # ============================================================================
 # DEFAULT PAGE CONTENT
@@ -470,6 +489,15 @@ def create_default_pages(db: Session) -> None:
     print("Creating Default Platform Content Pages (CMS)")
     print("=" * 70 + "\n")
 
+    # Resolve OMS platform for platform_id
+    oms_platform = db.execute(
+        select(Platform).where(Platform.code == "oms")
+    ).scalar_one_or_none()
+    if not oms_platform:
+        print("  ⚠️  OMS platform not found. Run init_production.py first.")
+        return
+    platform_id = oms_platform.id
+
     created_count = 0
     skipped_count = 0
 
@@ -490,6 +518,7 @@ def create_default_pages(db: Session) -> None:
 
         # Create new platform default page
         page = ContentPage(
+            platform_id=platform_id,
             store_id=None,  # Platform default
             slug=page_data["slug"],
             title=page_data["title"],

scripts/create_platform_pages.py

@@ -23,8 +23,29 @@ from pathlib import Path
 project_root = Path(__file__).resolve().parent.parent
 sys.path.insert(0, str(project_root))
 
+# Register all models with SQLAlchemy so string-based relationships resolve
+for _mod in [
+    "app.modules.billing.models",
+    "app.modules.inventory.models",
+    "app.modules.cart.models",
+    "app.modules.messaging.models",
+    "app.modules.loyalty.models",
+    "app.modules.catalog.models",
+    "app.modules.customers.models",
+    "app.modules.orders.models",
+    "app.modules.marketplace.models",
+    "app.modules.cms.models",
+]:
+    try:
+        __import__(_mod)
+    except ImportError:
+        pass
+
+from sqlalchemy import select
+
 from app.core.database import SessionLocal
 from app.modules.cms.services import content_page_service
+from app.modules.tenancy.models import Platform
 
 
 def create_platform_pages():
@@ -40,6 +61,15 @@ def create_platform_pages():
         # Import ContentPage for checking existing pages
         from app.modules.cms.models import ContentPage
 
+        # Resolve OMS platform
+        oms_platform = db.execute(
+            select(Platform).where(Platform.code == "oms")
+        ).scalar_one_or_none()
+        if not oms_platform:
+            print("   ⚠️  OMS platform not found. Run init_production.py first.")
+            return
+        platform_id = oms_platform.id
+
         # ========================================================================
         # 1. PLATFORM HOMEPAGE
         # ========================================================================
@@ -59,6 +89,7 @@ def create_platform_pages():
             try:
                 homepage = content_page_service.create_page(
                     db,
+                    platform_id=platform_id,
                     slug="platform_homepage",
                     title="Welcome to Our Multi-Store Marketplace",
                     content="""
@@ -95,6 +126,7 @@ def create_platform_pages():
             try:
                 about = content_page_service.create_page(
                     db,
+                    platform_id=platform_id,
                     slug="about",
                     title="About Us",
                     content="""
@@ -151,6 +183,7 @@ def create_platform_pages():
             try:
                 faq = content_page_service.create_page(
                     db,
+                    platform_id=platform_id,
                     slug="faq",
                     title="Frequently Asked Questions",
                     content="""
@@ -236,6 +269,7 @@ def create_platform_pages():
             try:
                 contact = content_page_service.create_page(
                     db,
+                    platform_id=platform_id,
                     slug="contact",
                     title="Contact Us",
                     content="""
@@ -305,6 +339,7 @@ def create_platform_pages():
             try:
                 terms = content_page_service.create_page(
                     db,
+                    platform_id=platform_id,
                     slug="terms",
                     title="Terms of Service",
                     content="""
@@ -397,6 +432,7 @@ def create_platform_pages():
             try:
                 privacy = content_page_service.create_page(
                     db,
+                    platform_id=platform_id,
                     slug="privacy",
                     title="Privacy Policy",
                     content="""
@@ -477,6 +513,8 @@ def create_platform_pages():
             except Exception as e:
                 print(f"   ⚠️  Error: Privacy Policy - {str(e)}")
 
+        db.commit()
+
         print()
         print("=" * 80)
         print("✅ Platform pages creation completed successfully!")

scripts/init_log_settings.py

@@ -5,8 +5,24 @@ Initialize default log settings in database.
 Run this script to create default logging configuration settings.
 """
 
-# Import all models to avoid SQLAlchemy relationship issues
+# Register all models with SQLAlchemy so string-based relationships resolve
-import models  # noqa: F401
+for _mod in [
+    "app.modules.billing.models",
+    "app.modules.inventory.models",
+    "app.modules.cart.models",
+    "app.modules.messaging.models",
+    "app.modules.loyalty.models",
+    "app.modules.catalog.models",
+    "app.modules.customers.models",
+    "app.modules.orders.models",
+    "app.modules.marketplace.models",
+    "app.modules.cms.models",
+]:
+    try:
+        __import__(_mod)
+    except ImportError:
+        pass
+
 from app.core.database import SessionLocal
 from app.modules.tenancy.models import AdminSetting
 

scripts/init_production.py

@@ -53,6 +53,7 @@ for _mod in [
     "app.modules.customers.models",
     "app.modules.orders.models",
     "app.modules.marketplace.models",
+    "app.modules.cms.models",
 ]:
     try:
         __import__(_mod)

scripts/seed_email_templates.py

@@ -12,6 +12,24 @@ from pathlib import Path
 # Add project root to path
 sys.path.insert(0, str(Path(__file__).parent.parent))
 
+# Register all models with SQLAlchemy so string-based relationships resolve
+for _mod in [
+    "app.modules.billing.models",
+    "app.modules.inventory.models",
+    "app.modules.cart.models",
+    "app.modules.messaging.models",
+    "app.modules.loyalty.models",
+    "app.modules.catalog.models",
+    "app.modules.customers.models",
+    "app.modules.orders.models",
+    "app.modules.marketplace.models",
+    "app.modules.cms.models",
+]:
+    try:
+        __import__(_mod)
+    except ImportError:
+        pass
+
 from app.core.database import get_db
 from app.modules.messaging.models import EmailCategory, EmailTemplate