diff --git a/app/db/migrations.py b/app/db/migrations.py
index 4b49928..5ea35d0 100644
--- a/app/db/migrations.py
+++ b/app/db/migrations.py
@@ -41,11 +41,11 @@ def run_migrations():
     con.execute(
         """
         CREATE TABLE IF NOT EXISTS workers (
-            worker_id TEXT PRIMARY KEY,
-            status TEXT,
-            last_seen_at TEXT,
+            id TEXT PRIMARY KEY,
+            status TEXT NOT NULL DEFAULT 'online',
+            started_at TEXT NOT NULL DEFAULT CURRENT_TIMESTAMP,
+            last_seen_at TEXT NOT NULL DEFAULT CURRENT_TIMESTAMP,
             current_job_id INTEGER,
-            started_at TEXT,
             metadata_json TEXT
         )
         """
diff --git a/app/db/workers.py b/app/db/workers.py
index 4c446e2..9987d5b 100644
--- a/app/db/workers.py
+++ b/app/db/workers.py
@@ -51,14 +51,14 @@ def get_workers():
     rows = con.execute(
         """
         SELECT
-            worker_id,
+            id,
             status,
+            started_at,
             last_seen_at,
             current_job_id,
-            started_at,
             metadata_json
         FROM workers
-        ORDER BY worker_id
+        ORDER BY id
         """
     ).fetchall()
 
@@ -73,14 +73,14 @@ def get_worker(worker_id: str):
     row = con.execute(
         """
         SELECT
-            worker_id,
+            id,
             status,
+            started_at,
             last_seen_at,
             current_job_id,
-            started_at,
             metadata_json
         FROM workers
-        WHERE worker_id = ?
+        WHERE id = ?
         """,
         (worker_id,),
     ).fetchone()
diff --git a/app/routes/workers.py b/app/routes/workers.py
index c2db0d5..2f68293 100644
--- a/app/routes/workers.py
+++ b/app/routes/workers.py
@@ -49,7 +49,7 @@ def workers_page(request: Request, user=Depends(require_user)):
 
     rows = ""
     for worker in workers:
-        worker_id_raw = worker.get("worker_id", "") or ""
+        worker_id_raw = worker.get("id", "") or ""
         worker_id = html.escape(worker_id_raw)
         worker_url_id = quote(worker_id_raw, safe="")
         status = html.escape(worker.get("status", "") or "")
@@ -124,7 +124,7 @@ def worker_detail_page(worker_id: str, request: Request, user=Depends(require_us
         target_id=worker_id,
     )
 
-    worker_id_html = html.escape(worker.get("worker_id", "") or "")
+    worker_id_html = html.escape(worker.get("id", "") or "")
     status = html.escape(worker.get("status", "") or "")
     last_seen_at = html.escape(worker.get("last_seen_at", "") or "")
     started_at = html.escape(worker.get("started_at", "") or "")