printedparts stage 5: the ledger - restock/adjust with badge attribution

Badge resolver copied from the USB contract (SSO digits, 0<digits>BZ
PayNo wrap) with names from the employees directory and the
unknown-badge policy setting; deliberately copied rather than
cross-imported so the contract test stays green. Restock and adjust
write the ledger row and move the cached quantity in one commit -
the single-commit invariant every write path must use. Adjust
requires a reason and refuses to drive stock below zero. Detail page
gains Restock/Adjust modals. Seven tests cover minting, the
cache==ledger invariant, badge shapes, policy toggle, and auth.

frontend/src/api/index.js

@@ -1153,5 +1153,11 @@ export const printedpartsApi = {
   },
   deleteImage(printeditemid) {
     return api.delete(`/printedparts/items/${printeditemid}/image`)
+  },
+  restock(printeditemid, data) {
+    return api.post(`/printedparts/items/${printeditemid}/restock`, data)
+  },
+  adjust(printeditemid, data) {
+    return api.post(`/printedparts/items/${printeditemid}/adjust`, data)
   }
 }