feat(sidecar): add thread mode as fallback connection for restricted environments#1447

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Leiyks wants to merge 13 commits intomainfrom

leiyks/sidecar-threaded-fallback

Commits on Mar 11, 2026

feat(sidecar): implement thread listener module
Leiyks
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feat(sidecar): apply feedbacks
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feat(sidecar): support threaded connection for windows
Leiyks
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fix(sidecar): scope thread mode IPC to master PID to prevent process interference
Leiyks
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fix(sidecar): encode master uid in thread-mode socket name for setuid compatibility
Leiyks
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fix(sidecar): guard set_sidecar_master_pid/uid with #[cfg(unix)]
Leiyks
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fix(thread-mode): use abstract Unix socket and current_thread Tokio runtime
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chore: remove redundant chmod 0o777 on socket (unused in thread mode on Linux)
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fix(sidecar): make named SHM open mode configurable via global hook
Leiyks
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fix(sidecar): add set_shm_open_mode for macOS (mem_handle_macos.rs)
Leiyks
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fix(sidecar): cast mode_t to u16 on macOS in shm_open_mode
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fix(sidecar): use fchown via SO_PEERCRED to grant cross-user SHM access
Leiyks
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fix(sidecar): add missing init_shm_eagerly field in Windows thread listener
Leiyks
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