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]>

pyproject.toml

@@ -29,7 +29,7 @@ dependencies = [
     "reportlab==5.0.1",
     "pillow==13.0.0",
     "visualkit==0.3.0",
-    "mfileskit==0.1.2",
+    "mfileskit==0.1.3",
 ]
 
 [project.optional-dependencies]