fix: consolidate CMS page seed scripts and fix 3 bugs

- Fix `ContentPage.store_id is None` (Python identity check, always
  False) → use `.is_(None)` for proper SQLAlchemy NULL filtering
- Create pages for ALL platforms instead of only OMS
- Merge create_platform_pages.py into create_default_content_pages.py
  (5 overlapping pages, only platform_homepage was unique)
- Delete redundant create_platform_pages.py
- Update Makefile, install.py, and docs references

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

docs/deployment/hetzner-server-setup.md

@@ -395,7 +395,6 @@ docker compose --profile full exec -e PYTHONPATH=/app api python -m alembic upgr
 docker compose --profile full exec -e PYTHONPATH=/app api python scripts/seed/init_production.py
 docker compose --profile full exec -e PYTHONPATH=/app api python scripts/seed/init_log_settings.py
 docker compose --profile full exec -e PYTHONPATH=/app api python scripts/seed/create_default_content_pages.py
-docker compose --profile full exec -e PYTHONPATH=/app api python scripts/seed/create_platform_pages.py
 docker compose --profile full exec -e PYTHONPATH=/app api python scripts/seed/seed_email_templates.py
 ```
 

docs/development/seed-scripts-audit.md

@@ -12,10 +12,10 @@
 | Script | Purpose | In Makefile? | Issues |
 |--------|---------|--------------|--------|
 | `seed_demo.py` | Create merchants, stores, customers, products | ✅ Yes | ❌ Missing inventory creation |
-| `create_default_content_pages.py` | Create platform CMS pages (about, faq, etc.) | ✅ Yes (`create-cms-defaults`) | ✅ Good |
+| `create_default_content_pages.py` | Create platform CMS pages (homepage, about, faq, etc.) for ALL platforms | ✅ Yes (`create-cms-defaults`) | ✅ Good (consolidated) |
 | `create_inventory.py` | Create inventory for products | ❌ **NO** | ⚠️ Should be in seed_demo |
 | `create_landing_page.py` | Create landing pages for stores | ❌ **NO** | ⚠️ Should be in seed_demo |
-| `create_platform_pages.py` | Create platform pages | ❌ **NO** | 🔴 **DUPLICATE** of create_default_content_pages |
+| ~~`create_platform_pages.py`~~ | ~~Create platform pages~~ | - | ✅ **DELETED** (merged into create_default_content_pages) |
 | `init_production.py` | Create admin user + platform alerts | ✅ Yes (`init-prod`) | ✅ Good |
 | `init_log_settings.py` | Initialize log settings | ❌ NO | ⚠️ Should be in init_production? |
 

docs/features/platform-homepage.md

@@ -67,8 +67,8 @@ app/
 │   └── content_page_service.py    # CMS business logic
 └── main.py                        # Platform routes (lines 284-404)
 
-scripts/
-└── create_platform_pages.py       # Seeder script
+scripts/seed/
+└── create_default_content_pages.py  # Seeder script (all platforms)
 
 docs/features/
 └── platform-homepage.md           # This file
@@ -193,14 +193,17 @@ Manage all platform content pages from a single interface:
 
 ```bash
 # Create all default platform pages
-python scripts/seed/create_platform_pages.py
+python scripts/seed/create_default_content_pages.py
 ```
 
-This creates:
+This creates (for all platforms):
 - Platform Homepage (with modern template)
 - About Us
-- FAQ
 - Contact Us
+- FAQ
+- Shipping Policy
+- Return & Refund Policy
+- Privacy Policy
 - Terms of Service
 - Privacy Policy
 
@@ -568,7 +571,7 @@ return templates.TemplateResponse(
 **Solutions:**
 1. Run seeder script:
    ```bash
-   python scripts/seed/create_platform_pages.py
+   python scripts/seed/create_default_content_pages.py
    ```
 
 2. Verify page exists:

docs/getting-started/platform-homepage-quick-start.md

@@ -11,10 +11,10 @@ Quick reference for setting up and customizing the platform homepage and content
 Run the seeder script to create all default platform pages:
 
 ```bash
-python scripts/seed/create_platform_pages.py
+python scripts/seed/create_default_content_pages.py
 ```
 
-This creates:
+This creates (for all platforms):
 - ✅ Platform Homepage (modern template)
 - ✅ About Us
 - ✅ FAQ
@@ -253,7 +253,7 @@ Result in header: `About | FAQ | Contact`
 
 **Fix:** Run seeder script
 ```bash
-python scripts/seed/create_platform_pages.py
+python scripts/seed/create_default_content_pages.py
 ```
 
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