feat: store chat_id to allow multiple chats, use enums in tauri

communication

crates/daemon/migrations/20260214_1_init.sql

@@ -1,5 +0,0 @@
-CREATE TABLE IF NOT EXISTS messages (
-    id INTEGER PRIMARY KEY AUTOINCREMENT,
-    text TEXT NOT NULL,
-    is_user BOOL NOT NULL
-);

crates/daemon/migrations/20260222_1_init.sql

@@ -0,0 +1,12 @@
+CREATE TABLE IF NOT EXISTS messages (
+    id INTEGER PRIMARY KEY AUTOINCREMENT,
+    chat_id INTEGER NOT NULL,
+    timestamp DATETIME DEFAULT CURRENT_TIMESTAMP,
+    text TEXT NOT NULL,
+    is_user BOOL NOT NULL,
+
+    UNIQUE(id, chat_id)
+);
+
+CREATE INDEX idx_message_timestamp ON messages(timestamp);
+CREATE INDEX idx_message_chat_id ON messages(chat_id);