refactor: rename Wizamart to Orion across entire codebase

Replace all ~1,086 occurrences of Wizamart/wizamart/WIZAMART/WizaMart
with Orion/orion/ORION across 184 files. This includes database
identifiers, email addresses, domain references, R2 bucket names,
DNS prefixes, encryption salt, Celery app name, config defaults,
Docker configs, CI configs, documentation, seed data, and templates.

Renames homepage-wizamart.html template to homepage-orion.html.
Fixes duplicate file_pattern key in api.yaml architecture rule.

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

docs/development/database-seeder/database-quick-reference-guide.md

@@ -68,10 +68,10 @@ make db-reset             # rollback + migrate + reset
 ### Required Settings
 ```bash
 ENVIRONMENT=development              # development/staging/production
-DATABASE_URL=sqlite:///./wizamart.db
+DATABASE_URL=sqlite:///./orion.db
 
 # Admin credentials (CHANGE IN PRODUCTION!)
-ADMIN_EMAIL=admin@wizamart.com
+ADMIN_EMAIL=admin@orion.lu
 ADMIN_USERNAME=admin
 ADMIN_PASSWORD=admin123
 ```
@@ -121,35 +121,35 @@ Store 3: store3@example.com / password123
 ## 📊 What Each Command Creates
 
 ### `make init-prod`
-✅ Platform admin user  
-✅ Admin settings  
-✅ Role templates  
-✅ RBAC schema verification  
+✅ Platform admin user
+✅ Admin settings
+✅ Role templates
+✅ RBAC schema verification
 
-**Safe for production**: YES  
-**Contains fake data**: NO  
+**Safe for production**: YES
+**Contains fake data**: NO
 
 ### `make seed-demo`
-✅ 3 demo stores  
-✅ Demo store users  
-✅ ~45 customers (15 per store)  
-✅ ~60 products (20 per store)  
-✅ Store themes  
-✅ Custom domains  
+✅ 3 demo stores
+✅ Demo store users
+✅ ~45 customers (15 per store)
+✅ ~60 products (20 per store)
+✅ Store themes
+✅ Custom domains
 
-**Safe for production**: NO  
-**Contains fake data**: YES - ALL OF IT  
+**Safe for production**: NO
+**Contains fake data**: YES - ALL OF IT
 
 ### `make seed-demo-minimal`
-✅ 1 demo store  
-✅ 1 demo store user  
-✅ ~15 customers  
-✅ ~20 products  
-✅ Store theme  
-✅ Custom domain  
+✅ 1 demo store
+✅ 1 demo store user
+✅ ~15 customers
+✅ ~20 products
+✅ Store theme
+✅ Custom domain
 
-**Safe for production**: NO  
-**Contains fake data**: YES  
+**Safe for production**: NO
+**Contains fake data**: YES
 
 ---
 
@@ -244,4 +244,4 @@ make help-db     # Database-specific help
 **Documentation**:
 - `database-init-guide.md` - Detailed guide
 - `MIGRATION_GUIDE.md` - Migration from old system
-- `README.md` - Project overview
+- `README.md` - Project overview