Align shafts: clock rotation and rename

[trailcode]

Summary

• Rename Align cylinders to Align shafts (toolbar, hotkeys label, docs); keep remappable id mode.cyl_align.
• Add Options Clock rotation (default off): after insert-depth drag, roll about the shared axis for tooth clocking (LMB / Shift+Tab; Tab for depth or angle; Enter can skip).
• Extend cyl_align_trsf with optional twist about the fixed axis.

Closes #246

Test plan

• Build Release EzyCad.
• Align shafts with Clock rotation off: pick faces, drag depth, LMB/Enter finalize.
• Clock rotation on: depth then drag clock; Shift+Tab / Tab angle edit; Enter from depth skips clock.
• Flip direction still works during preview.
• Radius mismatch still warns and places.
• Toolbar tooltip and Settings -> Keyboard shortcuts show Align shafts.
• Docs: usage.md Align Shafts section and hotkey table.

Notes

• Deterministic clocking-pick (planar tooth faces) was attempted and reverted; tracked as follow-up on Align shafts: clock rotation for tooth clocking #246.

Made with Cursor

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Cursor Bugbot has reviewed your changes using default effort and found 1 potential issue.

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Tab depth Enter skips clock

Medium Severity

With Clock rotation on, confirming the Tab depth popup (is_final) calls enter_twist_() instead of baking. The mode Enter handler always finalize()s from depth and skips clocking, as documented. Pressing Enter after typing depth therefore enters clock rotation instead of finishing the align.

 

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