diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 28b5385..593aeee 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -7,6 +7,7 @@ name: CI
 # What this CI covers (and Vercel does not):
 #   - Lint (cheap belt-and-suspenders)
 #   - Schema-map drift check (docs/SCHEMA_MAP.md updated when scripts/add-*.js changes)
+#   - Migrations apply cleanly (node-pg-migrate against ephemeral Postgres 16)
 #   - Unit tests (vitest)
 #
 # NOTE: tcg-vault is JavaScript (not TypeScript). No `npx tsc --noEmit` step.
@@ -230,6 +231,36 @@ jobs:
           fi
           echo "OK: no forbidden stale strings in pages/ or components/."
 
+  migrate:
+    name: Migrations apply (node-pg-migrate)
+    runs-on: ubuntu-latest
+    services:
+      postgres:
+        image: postgres:16
+        env:
+          POSTGRES_USER: postgres
+          POSTGRES_PASSWORD: postgres
+          POSTGRES_DB: deckhearth_test
+        ports:
+          - 5432:5432
+        options: >-
+          --health-cmd pg_isready
+          --health-interval 10s
+          --health-timeout 5s
+          --health-retries 5
+    env:
+      POSTGRES_URL: postgres://postgres:postgres@localhost:5432/deckhearth_test
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-node@v4
+        with:
+          node-version: ${{ env.NODE_VERSION }}
+          cache: npm
+      - run: npm ci
+      - name: Write migrate env file
+        run: echo "POSTGRES_URL=${POSTGRES_URL}" >> .env.local
+      - run: npm run migrate up
+
   test:
     name: Unit tests (vitest)
     runs-on: ubuntu-latest
diff --git a/docs/SCHEMA_MAP.md b/docs/SCHEMA_MAP.md
index 90f491a..9a46511 100644
--- a/docs/SCHEMA_MAP.md
+++ b/docs/SCHEMA_MAP.md
@@ -178,7 +178,7 @@
 
 ### card_submissions
 
-Added by `migrations/1748365200000_add-scan-tables.js` (server-side scan pipeline). Unknown high-confidence scans queue here for admin review instead of polluting `cards`.
+Added by `migrations/1779853647566_add-scan-tables.js` (server-side scan pipeline). Unknown high-confidence scans queue here for admin review instead of polluting `cards`.
 
 | Column | Type | Notes |
 | --- | --- | --- |
diff --git a/migrations/1748365200000_add-scan-tables.js b/migrations/1779853647566_add-scan-tables.js
similarity index 85%
rename from migrations/1748365200000_add-scan-tables.js
rename to migrations/1779853647566_add-scan-tables.js
index 310ff72..2cddb01 100644
--- a/migrations/1748365200000_add-scan-tables.js
+++ b/migrations/1779853647566_add-scan-tables.js
@@ -1,6 +1,11 @@
 /**
  * card_submissions + scan_attempts for server-side scan pipeline.
  *
+ * Retimestamped from 1748365200000 → 1779853647566 so fresh DBs run
+ * initial-schema before scan tables (FK to users). Existing envs that
+ * already recorded the old name in pgmigrations are unaffected; IF NOT EXISTS
+ * guards make re-application safe if the new name is pending.
+ *
  * @type {import('node-pg-migrate').ColumnDefinitions | undefined}
  */
 export const shorthands = undefined;
diff --git a/migrations/1780378340194_system-collection-description.js b/migrations/1780378340194_system-collection-description.js
index 89b2abb..2998024 100644
--- a/migrations/1780378340194_system-collection-description.js
+++ b/migrations/1780378340194_system-collection-description.js
@@ -13,6 +13,9 @@ export const shorthands = undefined;
  */
 export const up = (pgm) => {
   pgm.sql(`
+    ALTER TABLE collections
+    ADD COLUMN IF NOT EXISTS is_system_collection BOOLEAN DEFAULT false;
+
     UPDATE collections
     SET description = 'Automatically syncs with My Collection. This list cannot be deleted or made public.'
     WHERE is_system_collection = true