[StevenTCramer]

Summary

Runtime stays its own column. The chip is content-sized inside a fixed track, and an empty runtime still occupies that cell, so a wasm row and a row with no runtime share the same columns. The header and every row read one custom property, --log-columns, so the labels cannot drift from the cells. StoreBadge.Description is the only copy of the pre, live, and prefix explanations. Tooltip appends the store id. The log badge and the Store picker both call it. Follow live uses one sentence, and the select tooltip is that sentence plus a lead-in.

./bin/dev build exited 0: 0 errors, 154 warnings. None are in the files this fix pass edited. They are pre-existing NuGet advisories (NU1510, NU1902, NU1903), TW0007 global-using hints, RS0030 banned Console calls, and nullable warnings in the test app and client integration tests. dotnet fixie timewarp-state-devtools-tests — 98 passed, including ActionLogColumns_Should.NameEveryColumnOnceInTheHeaderTheRowAndTheTemplate, StoreBadge_Should.ExplainPrerenderLiveAndPrefixBadges, StoreBadge_Should.ExplainAnEmptyBadgeAsUntagged, and StoreSelection_Should.ExplainFollowLiveFromOneSentence.

Review round 1 fixes: --log-min-width is the border-box floor of the track minimums, the six column gaps, and the horizontal padding (37.4rem). The header and every row use it, so a sideways scroll keeps the sticky header, the row line, and the selected highlight under Duration and Result. Each row button's name is its cells. aria-describedby points at one shared pre, live, prefix, or untagged sentence, and the store id stays on the title. The Store control's name is the word Store. The badge tooltip and the Follow live sentence sit outside that label. An empty badge says "Untagged: no store id." The column check normalises newlines before it looks for the shared rule.

Test plan

Smoke: From the repo root, dotnet fixie timewarp-state-devtools-tests. Then open the DevTools action log at about 520px and about 980px, in Theme Dark and Theme Light. Scroll the narrow log to the right and down so a row sits under the header. Hover a pre badge, a live badge, a four-character prefix badge, a row with no store id, a long action name, and the Store select, including Follow live and (untagged).

Expect: The log shows Time, Store, Runtime, Action, State, Duration, and Result, aligned with the cells. Each row is one line. wasm / srv is a small chip. A row with no runtime does not shift the later columns. A long action or state name ends in an ellipsis and the tooltip is the full text. State does not run into the duration, and Ok stays in the Result column. Below the column floor the log scrolls sideways, and the header background, the row line, and the selected highlight still cover Duration and Result. The pre tooltip starts with "Prerender: a short-lived server store created while rendering a page's HTML; discarded after the request." The live tooltip starts with "Live: an interactive store." A prefix tooltip starts with "Store id prefix: render kind unknown." Each of those tooltips also contains the store id. A badge with no store id and no render kind says "Untagged: no store id." A row's accessible name is the cells, and the badge sentence is a description. The Store control's accessible name is Store. Follow live says it follows the newest non-prerender store and switches when a newer one appears. The Fixie run is 98 passed.

Kanban task 122
Session: Grok 01a14577-7565-7981-8fe1-6b66fd13a895