fix(visualization): eliminate ~200 console errors and warnings from test suite

Tests passed but emitted noisy console.error/console.warn output that masked
real issues. Fixes include:
- Add initialState to provideMockStore in 10 component/effect tests
- Remove manual subject completion in autoFitCodeMap effect test teardown
- Spy on Object3D.add/remove in 3D print container mesh tests
- Fix test color data and zero-filled positions in mapMesh tests
- Use stable track expression in filePanelFileSelector template
- Suppress JSDOM-only cdkFocusInitial warning in resetMapButton test

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>