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Cian Johnston
023f61626d
The AI Gateway sessions list page takes 5-13 seconds to load because `ListAIBridgeSessions` scans all `aibridge_interceptions` rows (~1M on dogfood) when no time filter is set. This PR defaults the list to the last 24 hours of sessions, reducing the scan by roughly two orders of magnitude without any backend or migration changes: the `started_after`/`started_before` filters already exist end-to-end in SQL, searchquery, and the API. The default range is held in component state (not the URL) and merged into every query payload including prefetches, so the unbounded query never runs on page load. A time range filter in the filter bar lets users override the window explicitly, which doubles as a forensic tool. Picking a range writes quoted RFC 3339 timestamps into the existing filter query. There are no presets and no unbounded "all time" mode, so the fast path is the only path. Existing "All sessions"/"My sessions" presets reset the filter query, which resets the time window to the default 24 hours; that is intentional. Also makes the five filter triggers a uniform width and left-aligns the new picker so the search input keeps room on wide viewports. Depends on #28255 (the DateTimeRangeFilter component) and #28254 (filterQuery serialization). Part of [AIGOV-580](https://linear.app/codercom/issue/AIGOV-580/ai-gateway-sessions-page-takes-5-10-seconds-to-load) --- _Generated by Coder Agents on behalf of @johnstcn._$ --- **Stack:** #28254 (filterQuery fix) \u2192 #28255 (component) \u2192 #28256 (sessions page)