[Madraka]

Step 1 of RFC-0042's rollout (ADR-0044). No behaviour change: nothing reads the new code yet.

Contract

• CollectionSettings.listFields (≤ 4 keys), expiry ({field, action: unlist|hide, afterMinutes?}) and structuredData ({type, properties}).
• Each property's source is chosen by kind: field, entry, site or text. EntryValueProperty and SiteValueProperty are named $defs, because cargo-typify merges inline enums.
• ContentListSection gains where (1–4 FieldConditions) and orderBy (FieldOrder).
• Fixtures: 4 valid and 44 invalid. TS and Rust are regenerated; Rust emits #[serde(tag = "kind")] enum StructuredDataSource.

@cloudhal/core-ts/structured-data (new subpath)

• The closed table for Event, JobPosting, Product and Recipe, with no rating or review paths.
• checkStructuredData: unknown paths and fields, source/type mismatches, vocabularies, ISO 4217 currencies, and required properties (no constants on them).
• structuredDataFor: no document when a required value is missing. The 32 KB cap drops optional properties first.

@cloudhal/core-ts/fields

• query.ts: the shared evaluator (parseFieldQuery, matchesFieldQuery, compareByField, checkFieldQuery → invalid_query).
• gate.ts: fieldGateInstant and expiryInstant, computing min(until, field date + grace). A date ends at the start of the next day in the site's zone, computed with Intl only, never early.
  • It is checked against Temporal on every day of 4 years in 17 zones.
  • One known gap in the oracle: temporal-polyfill misses Casablanca's 2018 Ramadan DST suspension, so that zone-year is checked against Intl instead.

ADR-0044 fix: the constant source kind is text, as in RFC-0042 §1 (the ADR had said constant).

Tests

• core-contracts: 526.
• core-ts: 76 new tests (gate 32, query 18, structured data 26). Locally the Miniflare DO tail fails with EADDRNOTAVAIL.
• cargo test and clippy pass.
• Packaging, size check and no drift pass.

Changeset: minor (core-contracts, core-ts).

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