Feat/sandbox logs data field

[matthewlouisbrockman]

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Project	Deployment	Actions	Updated (UTC)
web	Ready	Preview, Comment	Apr 23, 2026 1:30am
web-juliett	Ready	Preview, Comment	Apr 23, 2026 1:30am

[cursor]

PR Summary

Medium Risk
Moderate risk: changes log-mapping semantics (splitting a single infra entry into multiple UI log rows) and adds new virtualized expandable-row UI, which could affect pagination/cursor behavior and log rendering performance.

Overview
Adds structured sandbox log support end-to-end: the backend now parses log.fields.data (including JSON and JSON-lines), normalizes level/logger/message, and may emit multiple SandboxLogModel rows per infra log entry with optional fields, origin, and capturedBy metadata.

Updates sandbox log APIs to use mapInfraSandboxLogToModels and adjusts cursor/hasMore logic, and enhances the dashboard log viewer with a new Logger column plus expandable per-row details showing parsed fields/structured entries, with actions to copy a deep link (?log=...) or the log JSON.

^{Reviewed by Cursor Bugbot for commit 92e789b. Bugbot is set up for automated code reviews on this repo. Configure here.}