diff --git a/apps/api/src/db/migrations/0002_decks_archived_at.sql b/apps/api/src/db/migrations/0002_decks_archived_at.sql
new file mode 100644
index 0000000..cf4565f
--- /dev/null
+++ b/apps/api/src/db/migrations/0002_decks_archived_at.sql
@@ -0,0 +1,13 @@
+-- Add `archived_at` to cards.decks.
+--
+-- Hintergrund: 0000_baseline.sql hat die Spalte zwar im CREATE TABLE,
+-- aber die Production-DB wurde damals noch vor dem archived_at-Add
+-- aufgespielt, sodass die echte Tabelle bis 2026-05-13 keine
+-- archived_at-Spalte hatte. cards-native's DeckListView triggert
+-- GET /api/v1/decks, der Hono-Handler fragt `isNull(decks.archivedAt)`
+-- ab → Postgres-Error "column does not exist" → HTTP 500.
+--
+-- Idempotent (`IF NOT EXISTS`), damit fresh Setups (wo die Spalte
+-- via Baseline schon da ist) den Schritt überspringen.
+
+ALTER TABLE "cards"."decks" ADD COLUMN IF NOT EXISTS "archived_at" timestamp with time zone;
diff --git a/apps/api/src/db/migrations/meta/_journal.json b/apps/api/src/db/migrations/meta/_journal.json
index 809c946..c0133cf 100644
--- a/apps/api/src/db/migrations/meta/_journal.json
+++ b/apps/api/src/db/migrations/meta/_journal.json
@@ -15,6 +15,13 @@
       "when": 1747180800000,
       "tag": "0001_reviews_prev_snapshot",
       "breakpoints": true
+    },
+    {
+      "idx": 2,
+      "version": "7",
+      "when": 1779075600000,
+      "tag": "0002_decks_archived_at",
+      "breakpoints": true
     }
   ]
 }
\ No newline at end of file