feat: Add OAuth email integration and production deployment config

- Add OAuthCredential model for storing Google/Microsoft OAuth tokens
- Add email provider auto-detection endpoint (Gmail, Outlook, Yahoo, etc.)
- Add EmailConfigWizard frontend component with step-by-step setup
- Add OAuth flow endpoints for Google and Microsoft XOAUTH2
- Update production settings to make AWS, Sentry, Mailgun optional
- Update Traefik config for wildcard subdomain routing
- Add logo resize utility script

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

frontend/src/hooks/useTicketEmailSettings.ts

@@ -11,9 +11,19 @@ import {
   fetchEmailsNow,
   getIncomingEmails,
   reprocessIncomingEmail,
+  detectEmailProvider,
+  getOAuthStatus,
+  initiateGoogleOAuth,
+  initiateMicrosoftOAuth,
+  getOAuthCredentials,
+  deleteOAuthCredential,
   TicketEmailSettings,
   TicketEmailSettingsUpdate,
   IncomingTicketEmail,
+  EmailProviderDetectResult,
+  OAuthStatusResult,
+  OAuthInitiateResult,
+  OAuthCredential,
 } from '../api/ticketEmailSettings';
 
 const QUERY_KEY = 'ticketEmailSettings';
@@ -103,4 +113,77 @@ export const useReprocessIncomingEmail = () => {
   });
 };
 
-export type { TicketEmailSettings, TicketEmailSettingsUpdate, IncomingTicketEmail };
+/**
+ * Hook to detect email provider from email address
+ */
+export const useDetectEmailProvider = () => {
+  return useMutation({
+    mutationFn: (email: string) => detectEmailProvider(email),
+  });
+};
+
+// OAuth Hooks
+const OAUTH_STATUS_KEY = 'oauthStatus';
+const OAUTH_CREDENTIALS_KEY = 'oauthCredentials';
+
+/**
+ * Hook to get OAuth configuration status
+ */
+export const useOAuthStatus = () => {
+  return useQuery<OAuthStatusResult>({
+    queryKey: [OAUTH_STATUS_KEY],
+    queryFn: getOAuthStatus,
+  });
+};
+
+/**
+ * Hook to initiate Google OAuth flow
+ */
+export const useInitiateGoogleOAuth = () => {
+  return useMutation({
+    mutationFn: (purpose: string = 'email') => initiateGoogleOAuth(purpose),
+  });
+};
+
+/**
+ * Hook to initiate Microsoft OAuth flow
+ */
+export const useInitiateMicrosoftOAuth = () => {
+  return useMutation({
+    mutationFn: (purpose: string = 'email') => initiateMicrosoftOAuth(purpose),
+  });
+};
+
+/**
+ * Hook to list OAuth credentials
+ */
+export const useOAuthCredentials = () => {
+  return useQuery<OAuthCredential[]>({
+    queryKey: [OAUTH_CREDENTIALS_KEY],
+    queryFn: getOAuthCredentials,
+  });
+};
+
+/**
+ * Hook to delete OAuth credential
+ */
+export const useDeleteOAuthCredential = () => {
+  const queryClient = useQueryClient();
+
+  return useMutation({
+    mutationFn: (id: number) => deleteOAuthCredential(id),
+    onSuccess: () => {
+      queryClient.invalidateQueries({ queryKey: [OAUTH_CREDENTIALS_KEY] });
+    },
+  });
+};
+
+export type {
+  TicketEmailSettings,
+  TicketEmailSettingsUpdate,
+  IncomingTicketEmail,
+  EmailProviderDetectResult,
+  OAuthStatusResult,
+  OAuthInitiateResult,
+  OAuthCredential,
+};