fix: redirect to /workspaces after login (instead of /)

- Local login JS: window.location='/workspaces' instead of '/'
- Root route /: if no workspace exists, redirect to /workspaces
- Existing users with workspaces: still go to /local-workspace

app/routers/dashboard.py

@@ -369,6 +369,16 @@ async def dashboard(
     except Exception:
         pass
     if not has_gitea:
+        # Check if user has any workspace — if not, send to workspaces
+        try:
+            with get_conn() as conn:
+                ws_count = conn.execute(
+                    "SELECT COUNT(*) FROM workspaces WHERE owner_id=?", (user_id,)
+                ).fetchone()[0]
+                if ws_count == 0:
+                    return RedirectResponse("/workspaces", status_code=302)
+        except Exception:
+            pass
         return RedirectResponse("/local-workspace", status_code=302)
     try:
         repos = await gitea.get_user_repos(page=1, limit=50)