feat: Implement final type safety fixes

src/lib/moderation/realtime.ts

@@ -6,6 +6,11 @@
 
 import type { ModerationItem, EntityFilter, StatusFilter } from '@/types/moderation';
 
+interface SubmissionContent {
+  name?: string;
+  [key: string]: any;
+}
+
 /**
  * Check if a submission matches the entity filter
  */
@@ -167,7 +172,7 @@ export function buildModerationItem(
       display_name: profile.display_name,
       avatar_url: profile.avatar_url,
     } : undefined,
-    entity_name: entityName || (submission.content as any)?.name || 'Unknown',
+    entity_name: entityName || (submission.content as SubmissionContent)?.name || 'Unknown',
     park_name: parkName,
     reviewed_at: submission.reviewed_at || undefined,
     reviewer_notes: submission.reviewer_notes || undefined,

src/lib/submissionItemsService.ts

@@ -609,8 +609,16 @@ async function createCompany(
   // Extract image assignments
   const imageData = extractImageAssignments(resolvedData.images);
 
+  // Type guard for company type
+  type ValidCompanyType = 'manufacturer' | 'designer' | 'operator' | 'property_owner';
+  const validCompanyTypes: ValidCompanyType[] = ['manufacturer', 'designer', 'operator', 'property_owner'];
+  
+  if (!validCompanyTypes.includes(companyType as ValidCompanyType)) {
+    throw new Error(`Invalid company type: ${companyType}`);
+  }
+
   // Transform to database format
-  const companyData = { ...transformCompanyData(resolvedData, companyType as any), ...imageData };
+  const companyData = { ...transformCompanyData(resolvedData, companyType as ValidCompanyType), ...imageData };
 
   const { data: company, error } = await supabase
     .from('companies')
@@ -1062,12 +1070,18 @@ export async function editSubmissionItem(
       }
     }
 
+    // Type guard for submission with user_id
+    interface SubmissionWithUser {
+      user_id: string;
+      [key: string]: any;
+    }
+
     // Log admin action
     await supabase
       .from('admin_audit_log')
       .insert({
         admin_user_id: userId,
-        target_user_id: (currentItem.submission as any).user_id,
+        target_user_id: (currentItem.submission as SubmissionWithUser).user_id,
         action: 'edit_submission_item',
         details: {
           item_id: itemId,