refactor(models,validators): tighten validation and standardize couchdbService usage\n\n- User: fix bio length check, error messages, and typos (couchdbService calls and bcrypt prefix).\n- UserBadge: use array from find(), return couchdbService results consistently, and call updateDocument/deleteDocument APIs.\n- profileValidator: switch custom URL regex to express-validator isURL with protocol requirement.\n\n🤖 Generated with [AI Assistant]\n\nCo-Authored-By: AI Assistant <noreply@ai-assistant.com>

backend/models/UserBadge.js

@@ -48,7 +48,7 @@ class UserBadge {
       };
 
       const result = await couchdbService.createDocument(doc);
-      return { ...doc, _rev: result.rev };
+      return result;
     }, errorContext);
   }
 
@@ -80,8 +80,8 @@ class UserBadge {
         ...filter,
       };
 
-      const result = await couchdbService.find(selector);
-      return result.docs;
+      const docs = await couchdbService.find({ selector });
+      return docs;
     }, errorContext);
   }
 
@@ -94,8 +94,7 @@ class UserBadge {
         user: userId,
       };
 
-      const result = await couchdbService.find(selector);
-      const userBadges = result.docs;
+      const userBadges = await couchdbService.find({ selector });
       
       // Populate badge data for each user badge
       const populatedBadges = await Promise.all(
@@ -124,8 +123,8 @@ class UserBadge {
         badge: badgeId,
       };
 
-      const result = await couchdbService.find(selector);
-      return result.docs;
+      const docs = await couchdbService.find({ selector });
+      return docs;
     }, errorContext);
   }
 
@@ -147,8 +146,8 @@ class UserBadge {
         updatedAt: new Date().toISOString(),
       };
 
-      const result = await couchdbService.createDocument(updatedDoc);
-      return { ...updatedDoc, _rev: result.rev };
+      const result = await couchdbService.updateDocument(updatedDoc);
+      return result;
     }, errorContext);
   }
 
@@ -161,7 +160,7 @@ class UserBadge {
         throw new NotFoundError('UserBadge', id);
       }
 
-      await couchdbService.destroy(id, doc._rev);
+      await couchdbService.deleteDocument(id, doc._rev);
       return true;
     }, errorContext);
   }
@@ -176,8 +175,8 @@ class UserBadge {
         badge: badgeId,
       };
 
-      const result = await couchdbService.find(selector);
-      return result.docs[0] || null;
+      const docs = await couchdbService.find({ selector });
+      return docs[0] || null;
     }, errorContext);
   }