feat(sandbox): SandboxProcessRunner OS process manager (#300) - #307
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Implements Block E M1 OS process sandbox manager: scratch directories under querya_sandbox/, Linux bwrap and macOS sandbox-exec launch commands, Windows soft-start, and kill/dispose cleanup (issue #300).
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ZhuchkaTriplesix
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Jul 27, 2026
feat(sandbox): SandboxProcessRunner OS process manager (#300)
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Summary
SandboxScratchDirectoryfor isolated/tmp/querya_sandbox/<plugin>_<token>/workspaces with delete + orphan cleanupSandboxLaunchCommandbuilders: Linuxbwrap --unshare-all --share-net --ro-bind / /, macOSsandbox-execSeatbelt profile, Windows direct spawn (AppContainer/Job Object deferred to native helper)SandboxProcessRunner/SandboxProcessHandlewith injectableProcess.start, sanitized environment (no parent env / no secrets on argv), andkill()/dispose()that always remove the scratch treeCloses #300
Test plan
flutter test test/core/extensions/sandbox/— unit + soft bwrap integration