GeezerVison

Fixes DEQ-172 (WCAG 1.4.3 Contrast (Minimum)) on the AI Gateway session threads page.

In the dark theme, "Agentic loop completed" and "Session completed" use text-content-success (#16A249), which axe Auditor measured at 4.46:1 against #27272A. This moves the two dark theme success tokens that used green-600 (142 76% 36%), --content-success and --border-success, to green-500 (142 71% 45%, #22C55E). The dark theme already uses that green for --git-added-bright and --chart-success-border, and success text and borders stay the same green.

These tokens are global, so every dark theme success color gets slightly brighter. That covers success text, fills, and borders, for example health checks, LastSeen, toasts, status indicators, agent status borders, and template builder steps. This is intended: it lifts all success text above 4.5:1 rather than patching one page.

Not changed:

• Light theme: --content-success is green-700 and --border-success is green-600. Green-500 is 2.3:1 on white, which would fail 1.4.3 for text and 1.4.11 for borders.
• Colorblind themes: they override these tokens with their own values.

	Before	After
Success text (SessionTimeline/SecondThreadLoopOpen)
Success border (SelectionSummary/WithModules)

Screenshots: Storybook, dark theme.

Generated by Coder Agents on behalf of @chrifro.