Add Minimum Reel Width field to PVS Job Item with auto-calculation

[Copilot]

Adds a new editable Minimum Reel Width (Decimal, mm) field to PVS Job Item (6010316), displayed on PVS Job Items ListPart (6010340) after Imposition Type.

Field & Calculation Rules

• Only calculates when Component Type contains INSIDE
• Requires all three fields to be populated: Format Code, Controlling Sheet Unit (Printing Press), Imposition Type
• Recalculates on validate of any of the above, or Front Overfold
• Manual edit: difference (new − old) is added 1:1 to Front Overfold

Formula

Minimum Reel Width =
  (ImpositionLeavesWidth × Width) +
  ((ImpositionLeavesWidth / 2) × (Front Overfold + Milling Depth))

ImpositionLeavesWidth is "PVS Imposition Code"."Leaves Width" resolved via Imposition Type.

Files

• PVSJobItemMinReelWidth.TableExt.al — field 50100 on PVS Job Item; OnValidate propagates diff to Front Overfold
• PVSJobItemsListPart.PageExt.al — exposes field after Imposition Type
• PVSJobItemMinReelWidth.Codeunit.al — event subscribers for the four trigger fields; uses [TryFunction] to guarantee guard cleanup
• PVSMinReelWidthGuard.Codeunit.al — SingleInstance reentrancy guard preventing cross-field update loops