Add role-based visibility and management features for products

- Introduced a role-based visibility system for products, ensuring that only users with approved roles can view specific products.
- Added new database tables for roles, user roles, and product role visibility to manage access control.
- Implemented utility functions for role management, including fetching approved roles, checking product visibility, and assigning roles to users and products.
- Updated API endpoints to filter products based on user roles, enhancing security and user experience.
- Prepared the database schema for future role request and approval workflows in upcoming phases.

server/database/migrations/meta/_journal.json

@@ -8,6 +8,13 @@
       "when": 1761820599588,
       "tag": "0000_tiresome_malcolm_colcord",
       "breakpoints": true
+    },
+    {
+      "idx": 1,
+      "version": "7",
+      "when": 1762074397305,
+      "tag": "0001_clammy_bulldozer",
+      "breakpoints": true
     }
   ]
 }