v1.2.2 — Config restructure, chamfer depth fix, cleanup

• Config.ini reorganized into 4 sections ([Settings], [Inserts], [UI State], [Developer])
• Auto-migration from old single-section format
• Chamfer size now added to blind hole extrude depth (was missing before)
• Info text updates dynamically when toggling chamfer checkbox
• Improved error messages with per-point failure details
• Shared calc_blind_hole_depth_mm() helper
• Fix .gitignore, delete orphaned files
• Bundled help.html reference documentation

v1.2.0 — Robust Profile Selection & Cleanup

What's New in v1.2.0

Clean Temp Sketch Approach

• Bore circle is now created in a dedicated temporary sketch using addWithoutEdges(face) instead of the user's sketch
• Eliminates profile contamination from projected 3D body edges
• Reliable profile selection regardless of sketch complexity

Logging Cleanup

• Removed all diagnostic log() calls from core modules
• Cleaner console output during normal operation

Debug Export

• Added is_reference field to exported curve data
• enable_debug_export config option (default: off)

Housekeeping

• Updated all version references to 1.2.0
• Removed obsolete scripts and stub fixtures
• Updated README and App Store documentation
• Config parameter documentation added to README