Phase 6: Q.C. inspection, project folders, packet documents and the digital ITP

The Q.C. screen (KPIs, boards, project folders), the Q.C. tab on the packet
page (check items from the qc_check_items settings row, visual exam per weld,
NDE, hardness with the NACE label, notes), accept with a route and a
signature gated by qc_missing_empty, reject with a reason or an NCR number
closing the inspection into qc_history, Q.C. folder documents per project and
unit with superseding revisions, packet documents as a closed set with
take-out reasons, the digital ITP per unit from the frozen template (line
initials with CAS, unsign, N/A, customer codes, rejects with NCR, block
signatures, sign-off with the PDF hook, admin reopen, the ITP log), hold-point
warnings by department page group, the scoped policy check for unit and
project writes, migration 0007, tests, Playwright scenarios and docs.

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

server/packetstation/pdf/__init__.py

@@ -0,0 +1,2 @@
+"""PDF output: the data book, the traveler, the ITP, prints and stamps. Phase 7 builds them; phase 6 holds the ITP
+filing hook only."""

server/packetstation/pdf/itp.py

@@ -0,0 +1,17 @@
+"""The signed ITP PDF. Phase 7 builds it; until then the hook files nothing.
+
+`file_signed_itp_pdf` is called inside the sign-off transaction, after the ITP row is set complete. When it returns an
+asset id, the sign-off stores it as `signoff_asset_id` and files an automatic ITP document in the unit's Q.C. folder.
+"""
+
+from __future__ import annotations
+
+import uuid
+from collections.abc import Mapping
+from typing import Any
+
+
+def file_signed_itp_pdf(conn: Any, itp_row: Mapping[str, Any], actor: Any) -> uuid.UUID | None:
+    """Build and store the signed ITP PDF, and return its asset id. Phase 7 implements it; today it returns None."""
+    del conn, itp_row, actor
+    return None