fix: simplify ensureTable - use prepare().run(), no FK, no indexes

Author: CloudLobster

worker/src/routes/world-id.ts

@@ -7,25 +7,17 @@ const worldId = new Hono<AppBindings>();
 
 // ─── Auto-migrate: create table if not exists ───
 async function ensureTable(db: D1Database) {
-  try {
-    await db.exec(`CREATE TABLE IF NOT EXISTS world_id_verifications (
-      id                TEXT PRIMARY KEY,
-      handle            TEXT NOT NULL,
-      wallet            TEXT NOT NULL,
-      nullifier_hash    TEXT NOT NULL UNIQUE,
-      verification_level TEXT NOT NULL DEFAULT 'orb',
-      credential_type   TEXT,
-      world_id_version  TEXT NOT NULL DEFAULT 'v4',
-      verified_at       INTEGER NOT NULL DEFAULT (unixepoch()),
-      FOREIGN KEY (handle) REFERENCES accounts(handle)
-    )`);
-  } catch (_) {}
-  try {
-    await db.exec(`CREATE INDEX IF NOT EXISTS idx_worldid_handle ON world_id_verifications(handle)`);
-  } catch (_) {}
-  try {
-    await db.exec(`CREATE INDEX IF NOT EXISTS idx_worldid_nullifier ON world_id_verifications(nullifier_hash)`);
-  } catch (_) {}
+  // Simple table without foreign keys (D1 doesn't enforce FK anyway)
+  await db.prepare(`CREATE TABLE IF NOT EXISTS world_id_verifications (
+    id                TEXT PRIMARY KEY,
+    handle            TEXT NOT NULL,
+    wallet            TEXT NOT NULL,
+    nullifier_hash    TEXT NOT NULL,
+    verification_level TEXT NOT NULL DEFAULT 'orb',
+    credential_type   TEXT,
+    world_id_version  TEXT NOT NULL DEFAULT 'v4',
+    verified_at       INTEGER NOT NULL DEFAULT (unixepoch())
+  )`).run();
 }
 
 /**