style(web): one scale for type, icons, radii, hover, borders and timeline colours - #1988

🟢 Confidence 10/10 · safe to merge. The five files changed since 47cc281 are class and colour-token swaps; every token they name is defined and resolved by the page's theme Mount.
_{no findings · tests not needed · risk low}

Re-review of the five files changed since the last pass: 2xx moves to --severity-info on both DOM and canvas, timeline and namespace fills become color-mix washes, hovers go to muted/50. No defects. The open time-range-picker TypeError is not addressed; those lines only change border opacity.

• STATUS_COLORS["2xx"] and the 2xx mix bar use --severity-info instead of dark-only --chart-3
• barFillFromHue washes the bar hue into --background via color-mix(in oklab, …)
• Namespace group labels mix their hue with --foreground/--background instead of fixed dark values
• view-api.ts and endpoint-peek rows hover at muted/50 instead of /40

Production impact

_{650e71a · Reply "won't fix" to dismiss a finding, or mention @maple-review-bot to ask about one.}