fix: sshd handle the error

[kemingy]

Fix the panic when sshd exec with error:

panic: errors.As: *target must be interface or implement error, found *exec.ExitError

goroutine 65 [running]:
github.com/cockroachdb/errors/errutil.As({0x9dea60, 0xc000387860}, {0x90a780, 0xc0003878a0?})
	/home/runner/go/pkg/mod/github.com/cockroachdb/[email protected]/errutil/as.go:49 +0x547
github.com/cockroachdb/errors.As(...)
	/home/runner/go/pkg/mod/github.com/cockroachdb/[email protected]/errutil_api.go:194
github.com/tensorchord/envd/pkg/remote/sshd.getExitStatusFromError({0x9dea60, 0xc000387860})
	/home/runner/work/envd/envd/pkg/remote/sshd/sshd.go:276 +0x59
github.com/tensorchord/envd/pkg/remote/sshd.sendErrAndExit(0xc0001f2070, {0x9e6ed8, 0xc0003ca1a0}, {0x9dea60, 0xc000387860})
	/home/runner/work/envd/envd/pkg/remote/sshd/sshd.go:265 +0x24e
github.com/tensorchord/envd/pkg/remote/sshd.(*Server).connectionHandler(0xc000134f40, {0x9e6ed8, 0xc0003ca1a0})
	/home/runner/work/envd/envd/pkg/remote/sshd/sshd.go:191 +0xaec
github.com/gliderlabs/ssh.(*session).handleRequests.func1()
	/home/runner/go/pkg/mod/github.com/gliderlabs/[email protected]/session.go:261 +0x27
created by github.com/gliderlabs/ssh.(*session).handleRequests in goroutine 42
	/home/runner/go/pkg/mod/github.com/gliderlabs/[email protected]/session.go:260 +0x4c7

cc @gaocegege

[Copilot]

Pull Request Overview

Fix panic in SSHD error handling and bump IR library versions

• Rename error parameter and adjust type assertion to prevent panic in sendErrAndExit
• Update uvVersion from 0.6.5 to 0.7.10
• Update pixiVersion from 0.45.0 to 0.48.0

Reviewed Changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated no comments.

File	Description
pkg/remote/sshd/sshd.go	Rename error param, fix errors.As target type to *exec.ExitError
pkg/lang/ir/v1/uv.go	Bump BuildKit UV library version constant
pkg/lang/ir/v1/pixi.go	Bump Pixi library version constant

Comments suppressed due to low confidence (4)

pkg/remote/sshd/sshd.go:259

• [nitpick] The parameter name exitErr is clear, but inner err variables in the write and exit calls shadow it. Consider renaming those inner error variables (e.g. writeErr, exitCallErr) to avoid confusion.

func sendErrAndExit(logger *logrus.Entry, s ssh.Session, exitErr error) {

pkg/remote/sshd/sshd.go:275

• There are no existing unit tests for the new getExitStatusFromError behavior. Add tests covering: a) non-ExitError errors, b) ExitError with success=true, and c) ExitError with a syscall.WaitStatus fallback.

var exitErr *exec.ExitError

pkg/lang/ir/v1/uv.go:20

• After bumping uvVersion, remember to update the project changelog or release notes to reflect compatibility changes in BuildKit UV.

uvVersion = "0.7.10"

pkg/lang/ir/v1/pixi.go:26

• After bumping pixiVersion, ensure any related documentation (changelog, examples) is updated to reference the new Pixi version.

pixiVersion        = "0.48.0"

[kemingy]

I have verified that this fixed the Zed remote error. Now Zed can connect to the envd container.