CI tip-match: #7302 docs proof-gate worked example

Draft
OW
2mo ago
+3861-654

Tip-match vehicle for upstream #7302

Exact tip: 59e373fd3fa81feb6d0bb0f3a54c424a2ca74cc1
Upstream DRAFT: https://github.com/superset-sh/superset/pull/7302

Docs-only: docs/proof-gate-worked-example.md. Stay DRAFT.
Owned jobs are the merge signal; Neon Deploy Database FAIL is U4 allowlist if present.