Fix: Enable TypeScript strict mode

src/lib/entitySubmissionHelpers.ts

@@ -4,6 +4,7 @@ import { ImageAssignments } from '@/components/upload/EntityMultiImageUploader';
 import { uploadPendingImages } from './imageUploadHelper';
 import type { ProcessedImage } from './supabaseHelpers';
 import { extractChangedFields } from './submissionChangeDetection';
+import type { CompanyDatabaseRecord, TimelineEventDatabaseRecord } from '@/types/company-data';
 
 /**
  * ═══════════════════════════════════════════════════════════════════
@@ -723,7 +724,7 @@ export async function submitManufacturerUpdate(
       item_type: 'manufacturer',
       action_type: 'edit',
       item_data: {
-        ...extractChangedFields(data, existingCompany as any),
+        ...extractChangedFields(data, existingCompany as Partial<CompanyDatabaseRecord>),
         company_id: companyId,  // Always include for relational integrity
         company_type: 'manufacturer',  // Always include for entity type discrimination
         images: processedImages as unknown as Json
@@ -831,7 +832,7 @@ export async function submitDesignerUpdate(
       item_type: 'designer',
       action_type: 'edit',
       item_data: {
-        ...extractChangedFields(data, existingCompany as any),
+        ...extractChangedFields(data, existingCompany as Partial<CompanyDatabaseRecord>),
         company_id: companyId,  // Always include for relational integrity
         company_type: 'designer',  // Always include for entity type discrimination
         images: processedImages as unknown as Json
@@ -939,7 +940,7 @@ export async function submitOperatorUpdate(
       item_type: 'operator',
       action_type: 'edit',
       item_data: {
-        ...extractChangedFields(data, existingCompany as any),
+        ...extractChangedFields(data, existingCompany as Partial<CompanyDatabaseRecord>),
         company_id: companyId,  // Always include for relational integrity
         company_type: 'operator',  // Always include for entity type discrimination
         images: processedImages as unknown as Json
@@ -1047,7 +1048,7 @@ export async function submitPropertyOwnerUpdate(
       item_type: 'property_owner',
       action_type: 'edit',
       item_data: {
-        ...extractChangedFields(data, existingCompany as any),
+        ...extractChangedFields(data, existingCompany as Partial<CompanyDatabaseRecord>),
         company_id: companyId,  // Always include for relational integrity
         company_type: 'property_owner',  // Always include for entity type discrimination
         images: processedImages as unknown as Json
@@ -1128,7 +1129,7 @@ export async function submitTimelineEvent(
       p_user_id: userId,
       p_submission_type: 'milestone',
       p_content: content,
-      p_items: items as any,
+      p_items: items as unknown as Json[],
     });
 
   if (error || !submissionId) {
@@ -1169,9 +1170,9 @@ export async function submitTimelineEventUpdate(
   }
 
   // Extract only changed fields from form data
-  const changedFields = extractChangedFields(data, originalEvent as any);
+  const changedFields = extractChangedFields(data, originalEvent as Partial<Record<string, unknown>>);
 
-  const itemData: Record<string, any> = {
+  const itemData: Record<string, unknown> = {
     ...changedFields,
     // Always include entity reference (for FK integrity)
     entity_type: originalEvent.entity_type,

src/lib/errorHandler.ts

@@ -4,7 +4,7 @@ import { logger } from './logger';
 export type ErrorContext = {
   action: string;
   userId?: string;
-  metadata?: Record<string, any>;
+  metadata?: Record<string, unknown>;
 };
 
 export class AppError extends Error {
@@ -66,11 +66,27 @@ export const handleInfo = (
  * Type-safe error message extraction utility
  * Use this instead of `error: any` in catch blocks
  */
-export const getErrorMessage = (error: unknown): string => {
-  if (error instanceof Error) return error.message;
-  if (typeof error === 'string') return error;
+export function getErrorMessage(error: unknown): string {
+  if (error instanceof Error) {
+    return error.message;
+  }
+  if (typeof error === 'string') {
+    return error;
+  }
   if (error && typeof error === 'object' && 'message' in error) {
     return String(error.message);
   }
   return 'An unexpected error occurred';
-};
+}
+
+/**
+ * Type guard to check if error has a code property
+ */
+export function hasErrorCode(error: unknown): error is { code: string } {
+  return (
+    error !== null &&
+    typeof error === 'object' &&
+    'code' in error &&
+    typeof (error as { code: unknown }).code === 'string'
+  );
+}

src/lib/logger.ts

@@ -7,24 +7,22 @@
 
 const isDev = import.meta.env.DEV;
 
-type LogContext = {
-  [key: string]: any;
-};
+type LogContext = Record<string, unknown>;
 
 export const logger = {
-  log: (...args: any[]) => {
+  log: (...args: unknown[]): void => {
     if (isDev) console.log(...args);
   },
-  error: (message: string, context?: LogContext) => {
+  error: (message: string, context?: LogContext): void => {
     console.error(message, context); // Always log errors
   },
-  warn: (...args: any[]) => {
+  warn: (...args: unknown[]): void => {
     if (isDev) console.warn(...args);
   },
-  info: (...args: any[]) => {
+  info: (...args: unknown[]): void => {
     if (isDev) console.info(...args);
   },
-  debug: (...args: any[]) => {
+  debug: (...args: unknown[]): void => {
     if (isDev) console.debug(...args);
   }
 };