docs(changelog): v3.8.45 bullets for the tests+quality+CI pipeline overhaul (#6214, #6215, #6218)

i18n CHANGELOG mirrors intentionally left to the release reconciliation
(release:sync-changelog-i18n), per cycle practice.

CHANGELOG.md

@@ -6,6 +6,12 @@
 
 ## [3.8.45] — TBD
 
+### ⚡ Performance & Infrastructure
+
+- **perf(test):** test-suite loader quick wins ([#6214](https://github.com/diegosouzapw/OmniRoute/pull/6214)) — the 19 test scripts switch `--import tsx` → `--import tsx/esm` (the repo is pure ESM; the unused CJS hook cost ~1.3s per test process × 2,462 processes — CI fast-path unit shards dropped 14.8→7.5 min, −49%), tsx bumped to ^4.23.0 (tsx#809 startup-regression fix), **37 orphan `.test.mjs` files (224 cases) recovered** into the canonical glob (they matched no runner and never ran in any CI job; `check:test-discovery` now scans `.mjs` too), and ci.yml/quality.yml unit jobs now call the canonical npm script `test:unit:ci:shard` (single source of truth — closes two silent drifts: missing `setupPolyfill` import in CI and `memory/`+`usage/` dirs absent from the fast-path glob). `tests/unit/dashboard/**` keeps the full tsx hook in its own invocation (`@lobehub/icons` es/ build internally `require()`s ESM-syntax files).
+- **ci:** heavy-pipeline dedup ([#6215](https://github.com/diegosouzapw/OmniRoute/pull/6215)) — the release-PR pipeline ran the unit suite 4× per sync (95 jobs, 208 machine-min; the v3.8.44 cycle fired 123 such runs, 88 cancelled). Now: Node 24/26 compat matrices move to a daily `nightly-compat.yml` (−28%/run; resolves the active release branch, opens a tracking issue on failure), coverage is collected inside the unit shards themselves via c8/`NODE_V8_COVERAGE` (−18%/run; the Coverage Shard ×8 matrix is gone — nodejs/node's own CI pattern), the ~40-job per-language i18n matrix becomes 1 job (the account has 20 concurrent-job slots total), and heavy jobs skip **draft** PRs — paired with `/generate-release` now opening the living release PR as draft (flipped ready at the new Phase 0a.0a), killing the per-merge churn for the whole cycle. Validated by a full `workflow_dispatch` of the new pipeline: 35 jobs, 0 failures, 23 min, merged coverage 80.16% (> ratchet baseline).
+- **feat(quality):** no-new-warnings per PR ([#6218](https://github.com/diegosouzapw/OmniRoute/pull/6218)) — native ESLint bulk suppressions (≥9.24) freeze the pre-existing debt (476 files / 4,273 violations in `config/quality/eslint-suppressions.json`); `npm run lint`, lint-staged (pre-commit) and a new fork-aware `lint-guard` job in quality.yml all run suppressions-aware, so a NEW warning goes red in the PR that introduces it instead of accruing invisibly (+41/+88 per cycle) and being blind-rebaselined at release. 3 warn rules promoted to error in `src/**` (`react-hooks/exhaustive-deps`, `@next/next/no-img-element`, `import/no-anonymous-default-export`); `collect-metrics` measures under the frozen baseline (ratchet metric = net-NEW debt; baseline tightened 4,279→0 in-PR per require-tighten); fork PRs run report-only (contributors are never blocked — the maintainer campaigns fix via co-authorship). Baseline stock shrinks via `--prune-suppressions` at release reconciliation.
+
 ---
 
 ## [3.8.44] — TBD