The label lookup in drawComponentGate read from gate.component (potentially
stale copy) while gateOutputCount read from state.customComponents (updated
definition), causing a mismatch — fewer ports but old outputIds, so the
first (deleted) output's label was shown instead of the surviving one.
Three fixes:
- renderer: use customComponents as authoritative source for label lookup
- saveLoad: re-link gate.component refs to customComponents after loading
- components: update existing instances even when a "new" component
overwrites an existing definition with the same name
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Auto-saves every 3 seconds and on page unload. Restores the full
state (circuit, camera, custom components) on page load.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Add progressive puzzle mode alongside the existing sandbox:
- 8 levels from basic gates to 2-bit adder
- Truth table verification with pass/fail feedback
- Gate restrictions per level
- Custom components system (save circuits as reusable chips)
- Save/load circuits as JSON
- Level selection sidebar with difficulty ratings
- Mode toggle: Sandbox (free play) vs Puzzle (guided levels)
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
