[ChefControl]

Fixes from the owner's phone playtest (iPhone, 2026-10-19).

1. Auto graphics also watches stutters (src/graphics.ts)

• Auto watches frames in two-second looks. A look is bad if it ran under 50 fps, or it stuttered: its p95 frame slower than 25 ms or its p99 slower than 50 ms.
• When four of the last five looks are bad, it drops to Low. Before, it took three looks in a row under 45 fps.
• A hitch counts as a slow frame. Before, any hitch over 0.25 s started the count over, which is why a stuttering phone never dropped. Only a gap of over a second (the tab hidden, the phone locked) starts it over now.
• Once Auto drops, that device starts on Low next time (floe-market-graphics-auto). Choosing Auto, Low or High in the settings clears that.
• It still never goes back up to High by itself.

2. The tutorial's bubble is three quarters the size on a phone (index.html)

• On phones (the existing ≤720 px wide or ≤500 px tall rule): 180 px wide at most, 13.5/10.5 px text. Before, it was 240 px with 18/14 px text.
• Desktop is unchanged.

3. The slam works on touch (src/gong.ts)

• On a phone, a tap anywhere on the screen as the rings meet lands it. It counts when the finger touches, not when it lifts.
• The button says "SLAM! Tap on gold" on a touch screen, or once a finger has been seen. Space and the button still work on a computer.
• One try only: the button's own click after the tap finds the slam already tried.

Tests: test/graphics.test.ts (Auto: slow looks, stutters at 60 fps, a hitch that doesn't start the count over, the remembered Low) and test/stage3.test.ts (the slam: a tap on a phone). Checked the bubble at 375×812 (180 px, 13.5 px) and 1280×800 (240 px, 18 px) in the demo build.

Merge with "Squash and merge" (main only allows squash).

🤖 Generated with Claude Code