feat: persist settings and enrich conversation context

packages/api-contracts/src/messages.ts

@@ -13,6 +13,7 @@ export const SentMessageSchema = z.strictObject({
   chatRoomId: z.string().nullable(),
   subreddit: z.string().optional(),
   postTitle: z.string().optional(),
+  postUrl: z.string().optional(),
   postImageUrl: z.string().optional(),
   postImageAnalysis: z.string().optional(),
 });
@@ -23,6 +24,7 @@ export const ProcessedPostSchema = z.strictObject({
   subreddit: z.string(),
   author: z.string(),
   title: z.string(),
+  postUrl: z.string().nullable().optional(),
   imageUrl: z.string().nullable(),
   imageAnalysis: z.string().nullable(),
   generatedMessage: z.string().nullable(),