Add ASAN status.json

Start by comparing multi_arch_release.yml with multi_arch_release_asan.yml, then trace how quartz_tracking_id and status.json are generated and published. Confirm the ASAN workflow supplies its build variant and produces the status-asan.json links and latest pointers shown in the proposed rockrel-status layout.

We need to provide ASAN status.json.

In TheRock we have 2 important metrics to determine if and which status.json we send to:

• release_type (the channel/stream): nightly, nightly-bkc, prerelease (plus dev, dev-bkc which are known but untracked)
• build_variant (the sanitizer/flavor): release | asan-debug | asan (and eventually host-asan, tsan, ...)

for quartz_tracking_id we currently capture: "<orchestrator github.run_id>;<release_type>". we probably want to extend it with the build_variant.

asan is not triggered from multi_arch_release.yml but from multi_arch_release_asan.yml and has no piping of quartz_tracking_id yet.

Best would be to keep the same structure we already have and add a status-asan.json
But open to discussion if something else would be better.

New layout with status-asan.json

rockrel-status/
├── nightly/
│   ├── latest.json ──────────► <date>/status.json
│   ├── latest_good.json ─────► <date>/status.json
│   ├── latest-asan.json ─────► <date>/status-asan.json           ★ new
│   ├── latest_good-asan.json ► <date>/status-asan.json           ★ new
│   └── 20260911/
│       ├── status.json                    release  (variant=release)
│       └── status-asan.json               asan     (variant=asan)  ★ new
│
├── nightly-bkc/
│   ├── latest.json ──────────► <nightly-ver>/<bkc-date>/status.json
│   ├── latest_good.json ─────► <nightly-ver>/<bkc-date>/status.json
│   ├── latest-asan.json ─────► <nightly-ver>/<bkc-date>/status-asan.json   ★ new
│   ├── latest_good-asan.json ► <nightly-ver>/<bkc-date>/status-asan.json   ★ new
│   └── 10.1.0a20260825/
│       ├── latest.json ──────────► <bkc-date>/status.json
│       ├── latest_good.json ─────► <bkc-date>/status.json
│       ├── latest-asan.json ─────► <bkc-date>/status-asan.json    ★ new
│       ├── latest_good-asan.json ► <bkc-date>/status-asan.json    ★ new
│       └── 20260831/
│           ├── status.json
│           └── status-asan.json                                   ★ new
│
└── prerelease/
    ├── latest.json ──────────► <major.minor>/<full>/status.json
    ├── latest-asan.json ─────► <major.minor>/<full>/status-asan.json       ★ new
    └── 7.14/
        ├── latest.json ──────────► <full>/status.json
        ├── latest-asan.json ─────► <full>/status-asan.json        ★ new
        └── 7.14.0rc2/
            ├── status.json
            └── status-asan.json                                   ★ new