Long-tail cleanup: threshold and default-value literals in shared
helpers get named module-level constants.
- CharacterComparisonEngine: CHAR_PROXIMITY_RANGE_PCT (5),
DEFAULT_RENDER_SIZE_PX (16) — kept local instead of importing
DEFAULT_FONT_SIZE from \$entities/Font because \$shared/lib cannot
legally upward-import from \$entities per FSD (also avoids an init
cycle through the mocks barrel).
- typographySettingsStore: BASE_SIZE_EPSILON (0.01) — rounding-jitter
guard for baseSize reconciliation.
- createDebouncedState: DEFAULT_DEBOUNCE_MS (300) — exported so callers
can mirror the default.
- createVirtualizer: MEASUREMENT_EPSILON_PX (0.5) — minimum height
delta before committing a re-measured row.
- createPerspectiveManager: PERSPECTIVE_TOGGLE_THRESHOLD (0.5) — the
halfway point on the 0-1 spring that flips isBack/isFront.
Skipped #19 (PerspectivePlan defaults) per review — marginal gain.
Ilia Mashkov