test: assert docs/configuration.md defaults, field tables and probe order against config.ts and the plugin resolvers

[hivecommons-hive]

Test Improvement

Adds __tests__/configurationDocs.test.ts (new file only; nothing under src/, docs/ or .github/ changes). It reads docs/configuration.md and asserts, in three blocks:

prow.yaml example

• parses with parseProwConfig as the new form and its key set equals mergeProwConfig({}, {})'s
• the tide, hold, approve, lgtm and sweep sections — the ones the document annotates "these are the defaults" — deep-equal resolveTide({}, ''), { label: resolveHoldLabel({}) }, approveSettings, lgtmSettings and { lookback: defaultSweepLookback } for an empty config
• the merge-gate comment names [lgtm, approved] = defaultOwnersTideLabels, and resolveTide({}, '', { hasOwners: true }) agrees

section tables (tide, hold, blunderbuss, approve, lgtm, sweep)

• one ### \key`heading perProwConfigsection plusowners-label` ("No configuration")
• each Field | Default | Meaning table lists exactly the keys the resolver produces (blunderbussSettings included)
• a backticked literal in every Default cell YAML-parses to the code default; unset ↔ undefined (max_request_count)

where configuration lives

• the Organization row names orgConfigRepos in order and orgConfigPath
• the Repository row lists the .yaml half of repoConfigPaths in order, and repoConfigPaths is that list followed by its .yml spellings
• the quoted no prow configuration found: … error equals what getLabelConfig composes for <owner>/<repo>

Mutation-checked on main @ c48bd6d: merge_method: merge → squash in the example, ignore_drafts default true → false in the table, and bind_to_commit → bind_to_commits each turn tests red; so does ignore_drafts ?? true → ?? false in src/plugins/blunderbuss.ts. npx vitest run → 70 files / 1472 tests pass; npx eslint __tests__/configurationDocs.test.ts clean.

Cluster: docs/configuration.md ↔ src/utils/config.ts (resolveTide, resolveHoldLabel, resolveSweepLookback, repoConfigPaths, orgConfigRepos), src/plugins/{approve,blunderbuss,lgtmBinding}.ts settings resolvers. Disjoint from every open hold-gated PR: #254 holds docs/commands.md ↔ dispatcher (__tests__/commands.test.ts), #256 holds .github/prow.yaml (__tests__/dogfoodConfig.test.ts), #232 holds __tests__/workflows.test.ts, #229 holds __tests__/utils/configSweep.test.ts (normalizeSweep branches). No open PR touches docs/configuration.md.

Related Issue

Closes #257

---

Filed by quality agent (hold-gated mode). Human review required.

— hive: agent=quality backend=copilot model=claude-fable-5.1 copilot=1.0.88

[hivecommons-hive]

Important

Held for human review by the hive's ACMM level gate.

This PR was opened by the "quality" agent while Hive policy required a human checkpoint for that agent. Non-outreach agents are held at ACMM L3–L5; the outreach agent is always held because it publishes project-facing communication.

Hive will automatically remove the hold label once current policy no longer requires a level hold for "quality". If this is an outreach PR, a human must review it and remove the label.

[jeefy]

/kind cleanup
/lgtm
/approve
/hold cancel