Adds the CoreScope-side artifacts that pair with the generic [`qa-suite`
skill](https://github.com/Kpa-clawbot/ai-sdlc/pull/1).
## Layout
```
qa/
├── README.md
├── plans/
│ └── v3.6.0-rc.md # 34-commit test plan since v3.5.1
└── scripts/
└── api-contract-diff.sh # CoreScope-tuned API contract diff
```
The skill ships the reusable engine + qa-engineer persona + an example
plan. This PR adds the CoreScope-tuned plan and the CoreScope-tuned
script (correct seed lookups for our `{packets, total}` response shape,
our endpoint list, our `resolved_path` requirement). Read by the parent
agent at runtime.
## How to use
From chat:
- `qa staging` — runs the latest `qa/plans/v*-rc.md` against staging,
files a fresh GH issue with the report
- `qa pr <N>` — uses `qa/plans/pr-<N>.md` if present, else latest RC
plan; comments on the PR
- `qa v3.6.0-rc` — runs that specific plan
The qa-engineer subagent walks every step, classifying each as `auto`
(script) / `browser` (UI assertion) / `human` (manual) / `browser+auto`.
Quantified pass criteria are mandatory — banned phrases: 'visually
aligned' / 'fast' / 'no regression'.
## Plan v3.6.0-rc contents
Covers the 34 commits since v3.5.1:
- §1 Memory & Load (#806, #790, #807) — heap thresholds, sawtooth
pattern
- §2 API contract (#806) — every endpoint that should carry
`resolved_path`, auto-checked by `api-contract-diff.sh`
- §3 Decoder & hashing (#787, #732, #747, #766, #794, #761)
- §4 Channels (#725 series M1–M5)
- §5 Clock skew (#690 series M1–M3)
- §6 Observers (#764, #774)
- §7 Multi-byte hash adopters (#758, #767)
- §8 Frontend nav & deep linking (#739, #740, #779, #785, #776, #745)
- §9 Geofilter (#735, #734)
- §10 Node blacklist (#742)
- §11 Deploy/ops
Release blockers: §1.2, §2, §3. §4 is the headline-feature gate.
## Adding new plans
Per release: copy `plans/v<last>-rc.md` to `plans/v<new>-rc.md` and
update commit-range header, new sections, GO criteria.
Per PR: create `plans/pr-<N>.md` with the bare minimum for that PR's
surface area.
Co-authored-by: you <you@example.com>
