0.5.5 — Zero Pencil re-down wait

Change

Pencil lift → write again: no intentional delay.

• palmRejectMs = 50ms (0.05s) — only affects palm/touch safety, not Pencil
• Stroke end frees the pen channel immediately; cache work is next frame
• Palm pan teardown only when a drag is actually active

Reload Obsidian after update.