feat: Multi-email ticketing system with platform email addresses

- Add PlatformEmailAddress model for managing platform-level email addresses
- Add TicketEmailAddress model for tenant-level email addresses
- Create MailServerService for IMAP integration with mail.talova.net
- Implement PlatformEmailReceiver for processing incoming platform emails
- Add email autoconfiguration for Mozilla, Microsoft, and Apple clients
- Add configurable email polling interval in platform settings
- Add "Check Emails" button on support page for manual refresh
- Add ticket counts to status tabs on support page
- Add platform email addresses management page
- Add Privacy Policy and Terms of Service pages
- Add robots.txt for SEO
- Restrict email addresses to smoothschedule.com domain only

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

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

frontend/src/types.ts

@@ -210,6 +210,15 @@ export interface TicketComment {
   isInternal: boolean;
 }
 
+export interface TicketEmailAddressListItem {
+  id: number;
+  display_name: string;
+  email_address: string;
+  color: string;
+  is_active: boolean;
+  is_default: boolean;
+}
+
 export interface Ticket {
   id: string;
   tenant?: string; // Tenant ID, optional for platform tickets
@@ -236,6 +245,8 @@ export interface Ticket {
   // External sender info (for tickets from non-registered users via email)
   externalEmail?: string;
   externalName?: string;
+  // Source email address (which email address received/sent this ticket)
+  source_email_address?: TicketEmailAddressListItem;
 }
 
 export interface TicketTemplate {