refactor: enhance type safety by replacing any types with stricter types across the codebase, improving error handling and reducing potential bugs

lib/api/client.ts

@@ -24,9 +24,9 @@ export function getSignupUrl(redirectPath = '/auth/callback') {
 
 export class ApiError extends Error {
   status: number
-  data?: any
+  data?: Record<string, unknown>
   
-  constructor(message: string, status: number, data?: any) {
+  constructor(message: string, status: number, data?: Record<string, unknown>) {
     super(message)
     this.status = status
     this.data = data

lib/api/organization.ts

@@ -86,10 +86,7 @@ export async function sendInvitation(
   role: string = 'member',
   captcha?: { captcha_id?: string, captcha_solution?: string, captcha_token?: string }
 ): Promise<OrganizationInvitation> {
-  const body: any = {
-    email,
-    role
-  }
+  const body: Record<string, string> = { email, role }
 
   if (captcha?.captcha_id) body.captcha_id = captcha.captcha_id
   if (captcha?.captcha_solution) body.captcha_solution = captcha.captcha_solution