Refine dieline generator: separate Cut/Crease and improved TTLB lock controls

[ImanAmeli]

Motivation

• Produce pro-style dielines where cut and fold geometry are separated so fold lines are not mis-rendered as cuts.
• Add robust support for Tuck Top + Lock Bottom (TTLB) with a tunable lock notch so designers can adjust locking behavior.
• Improve iterative design workflow by allowing clearing of existing Cut/Crease layers before redraws.
• Update documentation to reflect new features and parameters.

Description

• Reworked dieline construction so flap outlines are drawn as open contours on Dieline - Cut and all fold lines are drawn as dashed paths on Dieline - Crease.
• Implemented lock-bottom geometry via lockMainContour and lockDustContour and exposed lockNotchRatio as the Lock Notch dialog field clamped to 0.08–0.28.
• Extended the UI dialog to include Dust Ratio, Tuck Shoulder, Tuck Tongue, Lock Notch, and a Clear Cut/Crease layers before drawing checkbox.
• Refreshed README.md (Persian) to document supported box styles, parameters, and usage steps.

Testing

• Syntax-checked the ExtendScript payload (with the #target illustrator directive removed) using node and new Function(code), which executed successfully.
• Programmatically listed and inspected the generated script file contents with nl to verify the new dialog entries and lock-flap functions are present and parse without errors.

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Codex Task