docs(devlog): verify the Kiro quota and pool phases compose on dev

devlog/_plan/260829_kiro_quota_pool/110_integrated_verification.md

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+# 110 — Integrated verification on dev
+
+Three PRs landed separately, so the last thing worth proving is that they compose.
+Verified against `origin/dev` at `3e3df05aa`, which contains all three plus unrelated
+work merged in between (`6703aba88`, `b9cb23656`).
+
+## What is on dev
+
+| PR | Merge | What it delivered |
+| --- | --- | --- |
+| [#2875](https://github.com/lidge-jun/opencodex/pull/2875) | `d82b3049d` | Kiro usage reader, per-account + provider quota, quota-aware 429 recovery, CLI column, docs |
+| [#2878](https://github.com/lidge-jun/opencodex/pull/2878) | `12fbb5b7a` | Pre-dispatch account selection |
+| [#2880](https://github.com/lidge-jun/opencodex/pull/2880) | `3e3df05aa` | Quota persistence across restart |
+
+## Result
+
+```text
+bun x tsc --noEmit -> exit 0
+bun test (9 files) -> 259 pass / 0 fail / 756 expect() calls
+```
+
+Files: `kiro-usage-quota`, `kiro-account-quota`, `kiro-pool-rank`,
+`provider-account-quota-persistence`, `provider-account-quota`, `provider-quota`,
+`generic-oauth-failover`, `cli-headless-parity`, `core-lab-boundary`.
+
+The last of those matters independently: none of this work put a Lab import on the
+request path, which the boundary walker verifies transitively rather than by inspection.
+
+## Known unrelated failures
+
+`bun run test` reports three failures in
+`tests/codex-envkey-admission-substitution.test.ts`. They reproduce on unmodified
+`124a2b148` in a separate clean worktree, so they predate this unit and are not caused
+by it.
+
+## Objective status
+
+- **Kiro quota display** — done. Per-account and provider rows, GUI bars, CLI column,
+  explicit unknown state.
+- **Pool-based automatic loading** — done in both directions: quota-ranked selection
+  before the first request, and quota-ranked rotation after a 429, with exhaustion
+  cooldowns and per-account credential/route pairing.
+- **429 PR reconciliation** — done in doc `003`: seven merged, two superseded by #2841,
+  nothing needing rework. #2783 is a separate open unit.
+
+What remains kiro-lb's, honestly: an operations dashboard and dashboard-native device
+login. Both are product surface, not pool machinery.