Feat: add memory [wip]

storage/migrations/001_init.up.sql

@@ -1,7 +1,16 @@
-CREATE TABLE IF NOT EXISTS chat (
+CREATE TABLE IF NOT EXISTS chats (
     id INTEGER PRIMARY KEY AUTOINCREMENT,
     name TEXT NOT NULL,
-    msgs TEXT NOT NULL,  -- Store messages as a comma-separated string
+    msgs TEXT NOT NULL,
     created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
     updated_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP
 );
+
+CREATE TABLE IF NOT EXISTS memories (
+    agent TEXT NOT NULL,
+    topic TEXT NOT NULL,
+    mind TEXT NOT NULL,
+    created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    updated_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    PRIMARY KEY (agent, topic)
+);