Remove hardcoded firm credentials from DB seed

Plaintext usernames and passwords for Alpha and TakeProfitTrader have
been removed from the startup seed block. Firms must now be added
manually through the UI or API.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

lib/db.ts

@@ -50,26 +50,6 @@ try {
     // Column already exists
 }
 
-// Seed default firms if empty
-const firmCount = (db.prepare('SELECT COUNT(*) as count FROM firms').get() as { count: number }).count;
-if (firmCount === 0) {
-    const insertFirm = db.prepare('INSERT INTO firms (name, username, password) VALUES (?, ?, ?)');
-    const insertAccount = db.prepare(
-        'INSERT INTO account_configs (firm_id, prefix, profit_target, consistency, min_day_pnl, min_trading_days, account_size) VALUES (?, ?, ?, ?, ?, ?, ?)'
-    );
-
-    const alpha = insertFirm.run('Alpha', 'brandonsenoli72786', '-Z2kPm7nBg');
-    insertAccount.run(alpha.lastInsertRowid, 'AFSTDEV',  9000, 0.51, -999, 5,  150000);
-    insertAccount.run(alpha.lastInsertRowid, 'AFSTDQA',  4500, 0.40, -999, 7,  150000);
-    insertAccount.run(alpha.lastInsertRowid, 'AFZEROEV', 3000, 0.50, -999, 5,  100000);
-    insertAccount.run(alpha.lastInsertRowid, 'AFZEROQA', 3000, 0.50, -999, 5,  100000);
-    insertAccount.run(alpha.lastInsertRowid, 'AF',       3000, 0.50, -999, 5,  100000);
-
-    const tpt = insertFirm.run('TakeProfitTrader', 'BRANDONLI1', 'W4592F5512U2817tv=');
-    insertAccount.run(tpt.lastInsertRowid, 'TAKEPROFIT', 9000, 0.50, -999, 5, 150000);
-
-    console.log('[db] Seeded default firms.');
-}
 
 
 // ── Interfaces ─────────────────────────────────────────────────────────────