(feat): add cache package

(feat): improve local storage security
(feat): move settings to dedicated settings package

packages/cache/src/schemas.ts

@@ -0,0 +1,27 @@
+import { mtp } from "@tensamin/shared/data";
+import { z } from "zod";
+
+export const accountIdSchema = z.string().min(1);
+export const contactSchema = z.object({
+  LastMessageAt: z.number(),
+  UserId: z.number(),
+  LastMessage: z
+    .object({ Content: z.base64(), SenderId: z.number() })
+    .optional(),
+  Messages: z.array(mtp.MessageGet.response),
+});
+export const contactsSchema = z.array(contactSchema);
+export const userProfileSchema = mtp.GetUserData.response;
+
+// Content remains the protocol base64 ciphertext. This package never decrypts messages.
+export const cachedMessageSchema = mtp.MessageGet.response;
+export const conversationWindowSchema = z.object({
+  UserId: z.number(),
+  LastMessageAt: z.number(),
+  Messages: z.array(cachedMessageSchema),
+});
+
+export type Contact = z.infer<typeof contactSchema>;
+export type UserProfile = z.infer<typeof userProfileSchema>;
+export type CachedMessage = z.infer<typeof cachedMessageSchema>;
+export type ConversationWindow = z.infer<typeof conversationWindowSchema>;