[shergin]

Answers #52 with four recipes, each with its Swift and Kotlin halves. None adds a concept.

• docs/recipes/budgeted-transport.md: a wrapper around the one verb that holds one request in flight, sends a write before a refresh before a browse page, meters the sends under the server's limit, pauses every request for a minute after a 429, and turns AniList's outage 403 into an error of the app's. A handle's fetch carries that error beside the data, and the view shows a calm line. The built-in transports keep a refused response's status and body but not its headers, so Retry-After is not read and the wait is the full minute. The page says so.
• docs/recipes/json-scalar.md: customLists(asArray: true) read as a mapped type. Checked against the live API, it is an array of {name, enabled} objects, not of names. The page says customScalarTypes maps a scalar, not a field, and that a map stays a type of the app's, never a dictionary on the read path.
• docs/recipes/fields-by-path.md: what a list fragment selects, where path-dependent and viewer-dependent fields go, and a probe that tells them apart. An anonymous request on 2026-10-18 got voiceActors filled under Page.media, so the page cites the report rather than stating it.
• docs/recipes/unpaged-collection.md: MediaListCollection as one operation with a long @cacheExpiration, grouped on the client from each entry's own fields, so a mutation's response moves the row with no updater. The image carries it to the next launch.

Linked from the README, docs/README.md and the site's Recipes section. CHANGELOG entry under Unreleased.

Checks: every code block was compiled in scratch hosts over AniList's schema, a Swift target built with BATON_COMPILER=local and -warnings-as-errors and a Kotlin module with compileKotlinJvm, then deleted. The budget was also run over a scripted base transport in both runtimes. scripts/check-boundaries.sh, scripts/hostile-name-sweep.py, the site build, and cargo fmt --check and clippy on site/ pass. No Swift, Kotlin or compiler source changed, so those suites were not run again.