printedparts stage 17: gage-lab asset tag + print-files redesign

The gage lab assigns real WJRP asset numbers, so identity splits: the
internal itemcode stays auto-minted and a new optional unique
gagelabtag (migration 0003) carries the lab's number - settable on
create/edit, searchable, and resolved by the kiosk for scans and bare
keypad digits against the numeric tail of either identifier
(unique-match only). The print-files table becomes stacked revision
cards - filename with rev/current badges, one meta line, delete pinned
right - ending the horizontal scroll in that column.

tests/test_plugins/test_printedparts_ledger.py

@@ -338,3 +338,32 @@ def test_alert_role_members_receive(client, auth_headers, app, item,
                              'badge': directory_employee, 'quantity': 6})
     assert take.status_code == 200
     assert captured['to'] == ['crewone@site.test']
+
+
+def test_gagelabtag_assigned_searched_and_kiosk_resolved(client, auth_headers):
+    """The internal code stays auto-minted; the gage-lab tag is optional,
+    unique, searchable, and the kiosk resolves it (exact and bare digits)."""
+    created = client.post('/api/printedparts/items',
+                          json={'itemname': 'Gage block holder',
+                                'gagelabtag': 'wjrp0117'},
+                          headers=auth_headers)
+    assert created.status_code == 201
+    data = created.get_json()['data']
+    assert data['gagelabtag'] == 'WJRP0117'
+    assert data['itemcode'].startswith('3DP')      # internal code untouched
+
+    duplicate = client.post('/api/printedparts/items',
+                            json={'itemname': 'Other',
+                                  'gagelabtag': 'WJRP0117'},
+                            headers=auth_headers)
+    assert duplicate.status_code == 409
+
+    searched = client.get('/api/printedparts/items?search=WJRP0117',
+                          headers=auth_headers).get_json()['data']
+    assert len(searched) == 1
+
+    by_tag = client.get('/api/printedparts/kiosk/item/WJRP0117')
+    assert by_tag.status_code == 200
+    by_digits = client.get('/api/printedparts/kiosk/item/117')
+    assert by_digits.status_code == 200
+    assert by_digits.get_json()['data']['gagelabtag'] == 'WJRP0117'