Deterministic pipe calculation tool for field use.
Geometry engine calculates marks and cut length consistently.
Safety layer prevents common human measurement and tool errors.
System is execution-driven and must preserve physical correctness.
Only index.html and README.md are public deployment files.
todo.md: implementation source of truth for the current release.CLAUDE.md: AI execution constraints — priority order, geometry rules, output rules.index.html: single-file app implementation.
v0.5.5.rules.md: hard behavior rules (physical correctness, warning hierarchy, rounding).
v0.5.6.md: full design document — Simple/Advanced Mode + Visual Instick.v0.5.6.rules.md: behavior rules for UI mode logic and instick visualization.
Implement ONLY S-böj from todo.md. Output only code.Implement ONLY Takoffset warning persistence from todo.md. No redesign.Implement ONLY requested section from todo.md. If unclear, ask first.