feat: add letters feature with detail view and listingHEADmain

- Introduced new routes for letters and their details.
- Created pages for displaying letter details and listing letters.
- Added new types for letters, including participants, messages, and attachments.
- Implemented API calls for fetching letters and managing messages (reply, edit, delete).
- Enhanced stats to include unread letters and pending districts for staff users.
- Updated styles for letters and their components.
- Added privacy settings for letters (public and friends).
- Modified user model to include letter privacy settings.
- Improved error handling and user feedback in the UI.

1 files changed, 46 insertions, 0 deletions

diff --git a/garden/src/types/letter.ts b/garden/src/types/letter.ts
new file mode 100644
index 0000000..f7bd9dc
--- /dev/null
+++ b/garden/src/types/letter.ts
@@ -0,0 +1,46 @@
+export interface LetterParticipant {
+  username: string;
+  display_name: string;
+  avatar_url: string;
+  role: string;
+}
+
+export interface LetterAttachment {
+  ref: string;
+  file_name: string;
+  url: string;
+  file_size: number;
+  content_type: string;
+  category: string;
+}
+
+export interface LetterMessage {
+  ref: string;
+  sender: LetterParticipant | null;
+  body: string;
+  attachments: LetterAttachment[];
+  edited_at: string | null;
+  created_at: string;
+  deleted: boolean;
+}
+
+export interface Letter {
+  ref: string;
+  title: string;
+  is_system: boolean;
+  system_ref?: string;
+  participants: LetterParticipant[];
+  last_message?: LetterMessage;
+  unread: boolean;
+  updated_at: string;
+}
+
+export interface LetterDetail {
+  ref: string;
+  title: string;
+  is_system: boolean;
+  system_ref?: string;
+  participants: LetterParticipant[];
+  messages: LetterMessage[];
+  created_at: string;
+}
\ No newline at end of file