[i2cjak]

Issue #45 is not reproducible on origin/main at a8339af0f. The asymmetric board renders with readable TOP F12 and BOTTOM R37, correct chamfer/pad placement, and the intentionally reversed/rotated back text preserved. The existing WebGL correction from #452 and the phone MVP transforms already negate board Y. Applying #57's additional encoder negation would reflect the model again; #57 was used only as reference.

The existing visual regression could no longer run: its loopback server omitted the imported mesh-worker module, and production Fit changes made its camera scale differ from the reviewed images. Serve that dependency and pin the reference camera distance. Keep all renderer/encoder code, wire bytes, and reviewed images unchanged. Record the verification in the fixture README.

Validation:

• Actual headless Chromium production WebGL rendering of the saved real GLB→Bend Solid wire for test/fixtures/pcb-bottom-silk/asymmetric.kicad_pcb: top and bottom reviewed silk masks both match exactly (IoU 1.0); images visually inspected.
• Negative control: negate the frozen wire's signed Y deltas, equivalent to Fix mirrored 3D plot meshes #57's proposed encoder change. The render regression fails with top silk IoU 0.
• Passed: solid_mesh_render_test.mjs, solid_mesh_test.ts, orbit_test.ts, mesh_worker_test.mjs, solid_assets_test.mjs, scripts/laws-shape.py, and git diff --check.
• Required scripts/check.sh proof attempted serially through the Boat lock on a large sandbox. Killed at 15,716,576 KiB peak RSS after 125 seconds, exit 1; no proof verdict obtained. Boat job j20261102184110-877941.
• Also attempted the separate solid_fit_orientation_test.mjs: its existing VM harness fails with ReferenceError: workerDecode is not defined before its assertions. That unrelated harness is unchanged.

This is a test/documentation repair, not a new encoder fix. No fresh hub build, install, live-hub restart, merge, or device run was performed. Builds and deployment remain with installer thread t1792701529-415584.

Refs #45, #57.