add DB setup with migrations

src/db-sql/migration.ts

@@ -0,0 +1,38 @@
+import migrationService from '../services/migrationService';
+import type { QueryExecResult } from '../services/migrationService';
+
+const MIGRATIONS = [
+  {
+    name: '001_create_accounts_table',
+    // see ../db/tables files for explanations
+    sql: `
+      CREATE TABLE IF NOT EXISTS accounts (
+        id INTEGER PRIMARY KEY AUTOINCREMENT,
+        dateCreated TEXT NOT NULL,
+        derivationPath TEXT,
+        did TEXT NOT NULL,
+        identity TEXT,
+        mnemonic TEXT,
+        passkeyCredIdHex TEXT,
+        publicKeyHex TEXT NOT NULL
+      );
+
+      CREATE INDEX IF NOT EXISTS idx_accounts_did ON accounts(did);
+      CREATE INDEX IF NOT EXISTS idx_accounts_publicKeyHex ON accounts(publicKeyHex);
+    `
+  }
+];
+
+export async function registerMigrations(): Promise<void> {
+  // Register all migrations
+  for (const migration of MIGRATIONS) {
+    await migrationService.registerMigration(migration);
+  }
+}
+
+export async function runMigrations(
+  sqlExec: (sql: string, params?: any[]) => Promise<Array<QueryExecResult>>
+): Promise<void> {
+  await registerMigrations();
+  await migrationService.runMigrations(sqlExec);
+}