First commit, phased 1 and 2 created but untested

scripts/migrate.js

@@ -0,0 +1,54 @@
+const path = require('path');
+const fs = require('fs');
+const { getDb } = require('../src/db');
+
+const migrationsDir = path.resolve(__dirname, '..', 'src', 'db', 'migrations');
+
+function runMigrations() {
+  const db = getDb();
+
+  // Create _migrations table if it doesn't exist
+  db.exec(`
+    CREATE TABLE IF NOT EXISTS _migrations (
+      id INTEGER PRIMARY KEY,
+      name TEXT NOT NULL UNIQUE,
+      applied_at TEXT NOT NULL DEFAULT (datetime('now'))
+    )
+  `);
+
+  // Get already-applied migrations
+  const applied = new Set(
+    db.prepare('SELECT name FROM _migrations').pluck().all()
+  );
+
+  // Find migration files
+  const files = fs.readdirSync(migrationsDir)
+    .filter(f => f.endsWith('.sql'))
+    .sort();
+
+  for (const file of files) {
+    if (applied.has(file)) {
+      console.log(`  SKIP ${file} (already applied)`);
+      continue;
+    }
+
+    const sql = fs.readFileSync(path.join(migrationsDir, file), 'utf-8');
+    console.log(`  APPLY ${file}`);
+
+    // Wrap in a transaction
+    db.transaction(() => {
+      db.exec(sql);
+      db.prepare('INSERT INTO _migrations (name) VALUES (?)').run(file);
+    })();
+  }
+
+  console.log('Migrations complete.');
+}
+
+// Run if called directly
+if (require.main === module) {
+  runMigrations();
+  process.exit(0);
+}
+
+module.exports = { runMigrations };