v0.2.1: Filled Fast icon

Fast now uses the app's built-in filled lightning glyph in both collapsed model controls.

Existing patches upgrade automatically through their matching original backup. This release also includes the fix that prevents repeated restart commands from bouncing an already patched app.

To upgrade, unzip the new package, run Enable Automatic Fast.command, then Apply and Restart.command. Installation requests a normal quit, patches the app, and opens it again without a fixed stability delay.

Verified on macOS arm64 with app 26.901.41600 (7982): 29 core/native tests, 12 transaction checks, an upgrade from 0.2.0 with exact original restoration, and a loopback UI test of Fast and Standard. See the repository's tested-builds document for test details and limits.