Phase 7: close, file, PDFs and prints

Clerical close and file: the VISUAL observed state beside the close confirm, a 409 with a second confirm when the
feed still shows work orders open, filing with a signature and the HMAC seal, the data book built on the server
and stored on the seal in the filing transaction, admin reopen keeping the broken seal with its data book.

Server PDFs with reportlab, pypdf and pypdfium2: the manufacturing data book page for page after the old build
(cover, index, drawings with VOID stamps, traceability and heat map rasters, weld maps and welding records, Q.C.
inspections, Q.C. and test documents, MTRs, record history), the job traveler with work order QR codes, the ITP
PDF filed automatically at sign-off, every print kind with the PRINTED COPY stamp, the controlled-copy stamp
signed with the seal key, PDF metadata, the traceability CSV with the formula guard, and the append-only
print_log with an audit row for every print and export (migration 0008).

Frontend: the close and file panel, the print menu and its entry points, the printed copies list on the History
tab, the ITP PDF buttons. Tests: server (close, file, reopen, seal, the builders, prints, CSV, stamps), frontend,
and the Playwright close and print scenarios. Docs updated; SECURITY closes M2, S6, S7 and S8.

Co-Authored-By: Claude Fable 5.1 <[email protected]>

tests/server/test_packets_api.py

@@ -264,7 +264,8 @@ def test_happy_path_file_and_reopen(pg_client2: TestClient, pg_settings: Setting
         "qc_accept",
         "file",
     ]
-    assert pg_client2.get(f"/api/packets/{pid}/log").json()[0]["action"] == "Filed in the data book"
+    actions = [e["action"] for e in pg_client2.get(f"/api/packets/{pid}/log").json()[:2]]
+    assert actions == ["Data book filed", "Filed in the data book"]
     # filed: every write is refused, Admin included
     r = pg_client2.patch(f"/api/packets/{pid}", json={"set": {"drawing": "D-2"}})
     assert r.status_code == 403 and r.json()["code"] == "filed"