chore: confirm lint-go CI failure resolved — no code changes required

[Copilot]

Workflow run #8016 on main failed the lint-go job due to unformatted Go code introduced in commit 7e1003f26d (feat: disable codex verbose RUST_LOG by default).

Root cause

The "RUST_LOG" entry in codex_engine.go's env map was written with a single space before its value, misaligned with adjacent keys that use gofmt-aligned tab spacing. go fmt ./... detected the drift and lint-go exited 1.

// before (unformatted — from 7e1003f26d)
"RUST_LOG": "${{ runner.debug == 1 && '...' || 'warn' }}",

// after (fixed — from ae6a832db6)
"RUST_LOG":                     "${{ runner.debug == 1 && '...' || 'warn' }}",

Status

Already resolved in commit ae6a832db6 (Remove estimated_cost from all reports). The current main HEAD passes make fmt-check and go vet ./... clean. No code changes are introduced by this PR.