v0.3.3 — Compact canvas selection strip

The canvas selection guide now fits in a 32 px single row, down from about 62 px. It keeps selection feedback and the chat hint visible, truncates long names, and expands only when the optional prompt input is opened.

Validated in the existing Chrome profile at 720 px and 360 px, with light/dark themes, long selection names, shortcut entry and edit progress. Package checks, all 69 regression tests, and the installed plugin's native edit/save/reopen plus bundled Codex host checks passed.

Reopen the canvas panel after updating to load the compact layout.