fix(pets): soften BitBlob directional gaze

[bobleer]

Summary

BitBlob's directional looks moved its eyes too close to the face edges. Regenerate the 16 look frames with restrained, nearly frontal gaze and a smoother downward-to-left-to-upward eye line. Both eyes stay near the center of the face.

Only the spritesheet and its asset documentation change. Standard animation rows 0–8, including the neutral frame, remain pixel-identical. Look-frame silhouette areas vary by less than 2%, preserving the previous size normalization.

Validation

• V2 atlas validation passed: geometry, transparency, populated/unused cells and chroma checks.
• Pixel comparison confirmed all standard rows unchanged; final-cell edge and continuity checks completed.
• Independent visual review accepted all cardinals and the restrained intermediate cues; three-reviewer blind consensus passed.
• Dynamic comparison preview verified for frame advancement, loop wraparound and pause/resume.
• pnpm run motion:audit and git diff --check passed.

Remote workspace, remote control, Peer Device Mode and Detached Dispatch were not exercised; this change replaces static artwork and does not alter runtime or transport behavior.