Fix project-scoped inspector and kernel lifecycle

[Aayam Bansal (aayambansal)]

Summary

• make the right-side Files/Compute workspace project-scoped so it survives session switches
• stop kernel inventory reads and inspector opens from creating sessions or placeholder kernels
• show only process-backed runtimes as live kernels, grouped by owning session
• keep inactive named environments available separately without counting them as running kernels
• keep expanded kernel cards stable across inventory polling
• remove the project-code header control and enable project-local code by default
• preserve explicit backend revocation as the read-only escape hatch

Claude Science parity check

• a new chat did not add a kernel before tool execution
• the first Python tool call changed the project count from 5 to 6
• a follow-up call reused the same kernel and variables (42 then 43) without increasing the count
• Compute grouped the runtime under the current chat and retained the other project sessions
• killing the probe returned the count to 5

Validation

• production build passed
• repo-wide typecheck passed
• focused frontend inspector and kernel tests passed
• full backend and CLI suite: 1,863 passed, 2 skipped, 0 failed
• live browser verification covered session switching, Files plus Compute persistence, truthful zero state, saved environments, start, polling, stop, forget, and empty-delete responses

Local preview

http://localhost:4097

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Project	Deployment	Actions	Updated (UTC)
openscience	Ready	Preview	Aug 8, 2026 9:11am