feat: replace browser login with imported Reddit sessions

tests/database.test.ts

@@ -16,7 +16,9 @@ describe('Database Client', () => {
       const config = getTestConfig({ database: { path: ':memory:' } });
       const db = createDatabase(config);
       const journalMode = db.pragma('journal_mode', { simple: true }) as string;
-      expect(journalMode).toBe('wal');
+      // SQLite uses an in-memory journal for the special :memory: database;
+      // file-backed databases use WAL in production.
+      expect(['wal', 'memory']).toContain(journalMode);
       db.close();
     });
 
@@ -103,8 +105,25 @@ describe('Database Client', () => {
       const tables = db
         .prepare("SELECT name FROM sqlite_master WHERE type='table' AND name NOT LIKE 'sqlite_%'")
         .all() as { name: string }[];
-      // processed_posts, sent_messages, successful_messages, activity_log, reddit_users
-      expect(tables.length).toBe(5);
+      // processed_posts, sent_messages, successful_messages, activity_log, reddit_users, delivery_outbox, conversation_states, conversation_outcomes
+      expect(tables.length).toBe(8);
+    });
+
+    it('tracks schema version and migrates a legacy sent_messages table transactionally', () => {
+      db.exec(`
+        CREATE TABLE processed_posts (id TEXT PRIMARY KEY, subreddit TEXT NOT NULL, author TEXT NOT NULL, title TEXT NOT NULL, image_url TEXT, image_analysis TEXT, generated_message TEXT, processed_at INTEGER NOT NULL, message_sent INTEGER DEFAULT 0, error TEXT);
+        CREATE TABLE sent_messages (id INTEGER PRIMARY KEY AUTOINCREMENT, post_id TEXT NOT NULL, recipient TEXT NOT NULL, subject TEXT NOT NULL, message TEXT NOT NULL, sent_at INTEGER NOT NULL);
+        INSERT INTO processed_posts VALUES ('post-1', 'test', 'author', 'title', NULL, NULL, NULL, 1, 0, NULL);
+        INSERT INTO sent_messages (post_id, recipient, subject, message, sent_at) VALUES ('post-1', 'recipient', 'subject', 'message', 2);
+      `);
+
+      runMigrations(db);
+
+      expect(db.pragma('user_version', { simple: true })).toBeGreaterThan(0);
+      expect(db.prepare('SELECT post_id FROM sent_messages').get()).toEqual({ post_id: 'post-1' });
+      const postId = db.prepare('PRAGMA table_info(sent_messages)').all().find((column: { name: string }) => column.name === 'post_id') as { notnull: number };
+      expect(postId.notnull).toBe(0);
+      expect(db.prepare("SELECT name FROM sqlite_master WHERE type = 'table' AND name = 'delivery_outbox'").get()).toBeDefined();
     });
 
     it('processed_posts has correct schema', () => {