.

src/db.ts

@@ -23,6 +23,7 @@ export interface ConversationRow {
   title: string;
   topic: string;
   model: string;
+  archived_at: number;
   created_at: number;
   updated_at: number;
 }
@@ -119,6 +120,11 @@ export function getDb(): Database {
   if (!cols.some((c) => c.name === "email")) {
     db.exec("ALTER TABLE users ADD COLUMN email TEXT NOT NULL DEFAULT ''");
   }
+  // Archive flag added after the initial schema — keep idempotent.
+  const convCols = db.query("PRAGMA table_info(conversations)").all() as { name: string }[];
+  if (!convCols.some((c) => c.name === "archived_at")) {
+    db.exec("ALTER TABLE conversations ADD COLUMN archived_at INTEGER NOT NULL DEFAULT 0");
+  }
   // Admin pseudo-account row (auth still goes through APP_PASSWORD from .env).
   const admin = db.query("SELECT id FROM users WHERE username = 'admin'").get() as { id: string } | null;
   if (!admin) {
@@ -242,6 +248,7 @@ export function createConversation(userId: string, opts: { title?: string; topic
     title: opts.title?.slice(0, 120) || "New chat",
     topic: opts.topic?.slice(0, 120) || "",
     model: opts.model?.slice(0, 160) || "",
+    archived_at: 0,
     created_at: now,
     updated_at: now,
   };
@@ -252,7 +259,21 @@ export function createConversation(userId: string, opts: { title?: string; topic
 }
 
 export function listConversations(userId: string): ConversationRow[] {
-  return getDb().query("SELECT * FROM conversations WHERE user_id = ? ORDER BY updated_at DESC").all(userId) as ConversationRow[];
+  return getDb().query("SELECT * FROM conversations WHERE user_id = ? AND archived_at = 0 ORDER BY updated_at DESC").all(userId) as ConversationRow[];
+}
+
+/** Archived chats: hidden from the sidebar, managed in settings. */
+export function listArchivedConversations(userId: string): ConversationRow[] {
+  return getDb().query("SELECT * FROM conversations WHERE user_id = ? AND archived_at != 0 ORDER BY updated_at DESC").all(userId) as ConversationRow[];
+}
+
+/**
+ * (Un)archive a conversation. archived_at is left out of updated_at on
+ * purpose so an unarchived chat returns to its chronological place.
+ */
+export function setConversationArchived(id: string, archived: boolean): ConversationRow | null {
+  getDb().query("UPDATE conversations SET archived_at = ? WHERE id = ?").run(archived ? Date.now() : 0, id);
+  return getConversation(id);
 }
 
 export function getConversation(id: string): ConversationRow | null {

src/index.ts

@@ -34,8 +34,10 @@ import {
   getUserByUsername,
   isRegistrationEnabled,
   listConversations,
+  listArchivedConversations,
   listUsers,
   peekReset,
+  setConversationArchived,
   setSetting,
   toPublicUser,
   touchConversation,
@@ -917,6 +919,11 @@ const server = Bun.serve({
         return json({ conversations: listConversations(user.id) });
       }
 
+      // Archived chats (hidden from the sidebar, managed in settings).
+      if (path === "/api/conversations/archived" && req.method === "GET") {
+        return json({ conversations: listArchivedConversations(user.id) });
+      }
+
       // Full-text-ish search over your own chats: titles, topics AND old
       // prompts/replies. Returns the matching conversations, most recent
       // first, with a short snippet of the first hit.
@@ -928,7 +935,7 @@ const server = Bun.serve({
           `SELECT c.*, m.content AS hit, m.role AS hit_role FROM conversations c
            LEFT JOIN messages m ON m.conv_id = c.id
              AND m.content LIKE ? ESCAPE '\\'
-           WHERE c.user_id = ? AND (c.title LIKE ? ESCAPE '\\' OR c.topic LIKE ? ESCAPE '\\' OR m.id IS NOT NULL)
+            WHERE c.user_id = ? AND c.archived_at = 0 AND (c.title LIKE ? ESCAPE '\\' OR c.topic LIKE ? ESCAPE '\\' OR m.id IS NOT NULL)
            GROUP BY c.id ORDER BY c.updated_at DESC LIMIT 30`,
         ).all(like, user.id, like, like) as (ConversationRow & { hit: string | null; hit_role: string | null })[];
         return json({
@@ -959,6 +966,13 @@ const server = Bun.serve({
         return json({ conversation: conv }, 201);
       }
 
+      const archiveMatch = path.match(/^\/api\/conversations\/([0-9a-f-]{10,50})\/(archive|unarchive)$/);
+      if (archiveMatch && req.method === "POST") {
+        const conv = getConversation(archiveMatch[1]!);
+        if (!conv || conv.user_id !== user.id) return json({ error: "conversation not found" }, 404);
+        return json({ conversation: setConversationArchived(conv.id, archiveMatch[2] === "archive") });
+      }
+
       const convMatch = path.match(/^\/api\/conversations\/([0-9a-f-]{10,50})(\/(share))?$/);
       if (convMatch) {
         const conv = getConversation(convMatch[1]!);
@@ -1075,6 +1089,8 @@ const server = Bun.serve({
           if (typeof body.conversationId !== "string") return json({ error: "bad conversationId" }, 400);
           conv = getConversation(body.conversationId);
           if (!conv || conv.user_id !== user.id) return json({ error: "conversation not found" }, 404);
+          // Archived chats are read-only: no new messages may be written.
+          if (conv.archived_at) return json({ error: "conversation is archived (read-only) — unarchive it to write again" }, 403);
           // Persist the new user message (dedupe against last stored one).
           const lastUser = [...messages].reverse().find((m) => m.role === "user");
           const stored = getMessages(conv.id);