ci: batch Rust and release smoke checks into one job

[ashutoshpw]

Problem

Rust (66s wall) and Release Smoke (66s wall) each started a runner and paid their own sparse checkout for work that finishes well before the fork's critical path (Test, ~424s). Two runner allocations for two short checks is the repeated-setup tax Linear removed by batching short checks.

Fix

Merge both into one job, Rust + Release Smoke (rust job id): cargo fmt then cargo test first so Rust failures surface fast, then the filtered @t2code/scripts... install and node scripts/release-smoke.ts. No step was lost, no timeout or permission weakened, and no setup-apt-mirrors was added (neither job needed it).

Evidence

• Same-repo baseline (main@99908f59f, run 35655900272): Rust 66s + Release Smoke 66s, two runner allocations.
• This branch's CI run: the merged Rust + Release Smoke job is 115s — one runner, one checkout, and both step groups green.
• Ruleset 22675324 has only deletion/creation rules and no required status checks, so the job rename does not block merges.
• Local validation: YAML parses; jobs list no longer contains release_smoke.

Stack

#9 (this PR) ← #11 (skip the desktop build on documentation-only changes)

Merge in order; after this one merges, the next PR is retargeted to main.

Manual Testing Guide

1. Get the run for this PR: gh run view <run-id> --repo ashutoshpw/t2code --json jobs.
2. Confirm exactly one job named Rust + Release Smoke exists and no Release Smoke job exists.
3. Confirm the job's steps include Check Rust formatting, Test Rust crates, Setup Vite+ (filtered install), and Exercise release-only workflow steps, all passing.
4. Confirm the job wall time is under the sum of the two old jobs (132s) and one fewer runner allocation is used.
5. Regression: Check still runs knip, vp check, typecheck, and the Electron setup; Test and Test Server 1-3 are unchanged.

[chatgpt-codex-connector]

Codex Review Summary

This comment shows the latest Codex review activity on this pull request.

Review	Status	Commit	Review trigger
🔒 Security Review	✅ Completed 2026-09-22T04:53:14.558030Z	c00cbd5	PR opened

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[github-actions]

Thread transfer impact

✅ Thread transfer remains within every enforced ceiling.

Provider	Metric	Main baseline	This PR	Impact	PR ceiling
Codex	Total thread wire	13.5 KiB	13.5 KiB	−1 B (−0.0%)	15.1 KiB	✅
Codex	Thread snapshot wire	7.1 KiB	7.1 KiB	−1 B (−0.0%)	7.3 KiB	✅
Codex	Live turn WebSocket wire	6.4 KiB	6.4 KiB	0 B (0.0%)	7.8 KiB	✅
Codex	Live turn WebSocket decoded	56.2 KiB	56.2 KiB	0 B (0.0%)	66.4 KiB	✅
Codex	Live turn messages	9	9	0 (0.0%)	21	✅
Claude	Total thread wire	13.5 KiB	13.5 KiB	+1 B (+0.0%)	15.1 KiB	✅
Claude	Thread snapshot wire	7.1 KiB	7.1 KiB	+5 B (+0.1%)	7.3 KiB	✅
Claude	Live turn WebSocket wire	6.5 KiB	6.5 KiB	−4 B (−0.1%)	7.8 KiB	✅
Claude	Live turn WebSocket decoded	57.0 KiB	57.0 KiB	0 B (0.0%)	66.4 KiB	✅
Claude	Live turn messages	9	9	0 (0.0%)	21	✅

Baseline: 99908f5 · PR result: c00cbd5 · Source CI: success

Scenario and decoded snapshot size

10 historical turns, 5 command tools per turn, 878.9 KiB retained MCP result per historical turn, and a 1.05 MiB retained result in the measured turn.

• Codex decoded thread snapshot: 113.9 KiB
• Claude decoded thread snapshot: 114.6 KiB

Updated in place by a trusted workflow. PR artifacts are strictly validated and never executed.