Allow restart subprocess to search `ct` on PATH

[tzanko-matev]

💡 Codex Review

codetracer/src/ct/trace/run.nim

Lines 62 to 63 in b53a943

	let process = startProcess(codetracerExe, args = @["replay", fmt"--id={recordedTrace.id}"], options = {poParentStreams})
	waitForExit(process) == RESTART_EXIT_CODE

Allow restart subprocess to search ct on PATH

When the binaries are built for the Python wheel, codetracerExe is compiled as the plain string "ct" rather than an absolute path. The restart branch here still launches startProcess with only {poParentStreams}, so the Nim runtime tries to execute a relative file and fails with OSError: no such file on installations that rely on PATH lookup (the newly added Python package). Other call sites were updated to pass poUsePath for this exact scenario. Add poUsePath (or resolve an absolute path) so the replay restart works in wheel-based deployments.

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Originally posted by @chatgpt-codex-connector[bot] in #419 (review)

[alehander92]

i think that the restart with an exit code which is referenced here, shouldn't be really part of the ct pip package or user packages: it is more like a hack intended for usage by Franz when QA-ing(e.g. with a shortcut to "quickly restart") but real rerun functionality might come from e.g. the edit->rerun work