drawings: on a rev mismatch, Clerical can keep the retired rev VISUAL calls (#41)

When VISUAL calls a rev that M-Files has retired, the draft is still
flagged rev_mismatch, but the drawing job now also copies the rev VISUAL
calls (MFilesKit 0.1.3 DrawingLookup.revision) into drawing_revisions and
visual.called. A Clerical Supervisor picks either rev on the packet:
"Use latest rev N" as before, or "Use rev V as VISUAL calls it"
(rev-approve with use=called), with a reason and a signature.

The kept rev holds while M-Files' Effective rev stays the one chosen
against: no flag, no change order. A newer Effective rev flags the
packet again; a new VISUAL rev clears the choice.

Migration 0009 adds drawing_revisions. Needs mfileskit 0.1.3.

Co-Authored-By: Claude Opus 5.5 <[email protected]>

server/packetstation/domain/packets.py

@@ -643,7 +643,20 @@ def staged_rev(conn: Any, drawing: Any) -> dict[str, Any] | None:
     lk = staged_lookup(conn, drawing)
     if lk is None:
         return None
-    return {"rev": lk["rev"], "name": lk["name"]}
+    return {"rev": lk["rev"], "name": lk["name"], "asset_id": str(lk["asset_id"])}
+
+
+def called_lookup(conn: Any, drawing: Any, rev: Any) -> dict[str, Any] | None:
+    """The drawing_revisions row for the rev VISUAL calls, when the drawing job copied it (asset set)."""
+    dwg = str(drawing or "").strip()
+    r = str(rev or "").strip()
+    if not dwg or not r.isdigit():
+        return None
+    return one(
+        conn,
+        "SELECT * FROM drawing_revisions WHERE dwg = %s AND rev = %s AND asset_id IS NOT NULL",
+        (dwg, int(r)),
+    )
 
 
 def staged_lookup(conn: Any, drawing: Any) -> dict[str, Any] | None: