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>

app/modules/cms/locales/en.json

@@ -133,7 +133,7 @@
             "creating_account": "Creating your account..."
         },
         "success": {
-            "title": "Welcome to Wizamart!",
+            "title": "Welcome to Orion!",
             "subtitle": "Your account has been created and your {trial_days}-day free trial has started.",
             "what_next": "What's Next?",
             "step_connect": "Connect Letzshop:",
@@ -149,7 +149,7 @@
         },
         "cta": {
             "title": "Ready to Streamline Your Orders?",
-            "subtitle": "Join Letzshop stores who trust Wizamart for their order management. Start your {trial_days}-day free trial today.",
+            "subtitle": "Join Letzshop stores who trust Orion for their order management. Start your {trial_days}-day free trial today.",
             "button": "Start Free Trial"
         },
         "footer": {
@@ -157,7 +157,7 @@
             "quick_links": "Quick Links",
             "platform": "Platform",
             "contact": "Contact",
-            "copyright": "© {year} Wizamart. Built for Luxembourg e-commerce.",
+            "copyright": "© {year} Orion. Built for Luxembourg e-commerce.",
             "privacy": "Privacy Policy",
             "terms": "Terms of Service",
             "about": "About Us",
@@ -188,7 +188,7 @@
             "how_step1": "Connect Letzshop",
             "how_step1_desc": "Enter your Letzshop API credentials. Done in 2 minutes, no technical skills needed.",
             "how_step2": "Orders Flow In",
-            "how_step2_desc": "Orders sync automatically. Confirm and add tracking directly from Wizamart.",
+            "how_step2_desc": "Orders sync automatically. Confirm and add tracking directly from Orion.",
             "how_step3": "Generate Invoices",
             "how_step3_desc": "One click to create compliant PDF invoices with correct VAT for any EU country.",
             "how_step4": "Grow Your Business",