feat: Add Findagram and FindADispo consumer frontends

- Add findagram.co React frontend with product search, brands, categories
- Add findadispo.com React frontend with dispensary locator
- Wire findagram to backend /api/az/* endpoints
- Update category/brand links to route to /products with filters
- Add k8s manifests for both frontends
- Add multi-domain user support migrations

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

findadispo/frontend/public/manifest.json

@@ -0,0 +1,29 @@
+{
+  "short_name": "Find a Dispo",
+  "name": "Find a Dispensary - Cannabis Locator",
+  "icons": [
+    {
+      "src": "favicon.ico",
+      "sizes": "64x64 32x32 24x24 16x16",
+      "type": "image/x-icon"
+    },
+    {
+      "src": "logo192.png",
+      "type": "image/png",
+      "sizes": "192x192",
+      "purpose": "any maskable"
+    },
+    {
+      "src": "logo512.png",
+      "type": "image/png",
+      "sizes": "512x512",
+      "purpose": "any maskable"
+    }
+  ],
+  "start_url": ".",
+  "display": "standalone",
+  "theme_color": "#10B981",
+  "background_color": "#ffffff",
+  "orientation": "portrait-primary",
+  "categories": ["lifestyle", "shopping"]
+}