Add dev overlay with resource timestamps and tool timing#26
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The dev server now injects a small overlay into every resource showing
when the HTML was served and how long the tool handler took. Both values
are baked into the HTML at readResource time; the inspector also updates
timing live via _meta._sunpeak.requestTimeMs on PostMessage.
The overlay is dev-only (never in production builds) and can be disabled
via the devOverlay=false URL param, SUNPEAK_DEV_OVERLAY=false env var,
or defineLiveConfig({ devOverlay: false }). Template e2e tests hide it
by default; a dedicated dev-overlay.spec.ts (excluded from sunpeak new)
tests the overlay itself. The standalone inspector injects the overlay
into resources from arbitrary MCP servers too.
Also adds sidebar=false URL param to hide the inspector sidebar.
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Summary
_meta._sunpeak.requestTimeMson tool results so the overlay updates live on inspector Re-run. The standalone inspector also injects the overlay into resources from arbitrary MCP servers.sidebar=falseanddevOverlay=falseURL params,SUNPEAK_DEV_OVERLAY=falseenv var, anddefineLiveConfig({ devOverlay: false })for controlling visibility. Template e2e tests hide the overlay by default via ahelpers.tswrapper;dev-overlay.spec.tstests the overlay itself (excluded fromsunpeak new).Test plan
devOverlay: false(4 resource tests without overlay clutter)