chore: replace Biome with oxlint, oxfmt and Knip

[Thomasims]

Replaces Biome with the shared @antelopejs/tooling-configs presets: oxlint
(type-aware, with the vendored anti-slop rules), oxfmt for formatting and Knip
for dead-code detection. oxlint is pinned to 1.81.0 because the JS plugin API
is still alpha and has to match the version tooling-configs builds against.

tsconfig

Type-aware linting runs through tsgolint, which rejects options TypeScript 7
removed, so moduleResolution: "node" and baseUrl are gone and the
self-referential @antelopejs/interface-data-api path mappings the test suites
use are now written relative, which is what the compiler wants once baseUrl
is absent.

module stays commonjs on purpose. Raising it to node16 would look like the
tidier fix and is a runtime break: tsc stops downlevelling dynamic imports and
emits native ESM ones, which bypass the CommonJS resolver detour the ajs
runtime installs.

The import cycles

import(no-cycle) found two, both through index.ts:

• components.ts imported GetDataControllerMeta from index.ts, while
  index.ts imports Parameters, Query and Validation from
  components.ts.
• metadata.ts imported the DataControllerCallbackWithOptions type from
  index.ts, while index.ts imports DataAPIMeta from metadata.ts.

Both are fixed by moving the shared declarations down into metadata.ts — the
endpoint callback types (DataControllerCallback,
DataControllerCallbackWithOptions, ExtractCallback, DataControllerDef,
ExtractDefCallbacks) and GetDataControllerMeta, all of which describe
metadata rather than controllers. metadata.ts imports neither of the other two
modules, so the graph is now acyclic.

The public surface is unchanged. index.ts re-exports every moved symbol,
and Object.keys(require("dist/index.js")) is identical before and after; the
metadata subpath gains those names, which is purely additive.

The first cycle was not theoretical. On main, requiring the components
subpath before the root throws:

TypeError: Cannot read properties of undefined (reading 'Get')
    at dist/index.js:203:72

because index.ts evaluates Parameters.Get() at module scope while
components is still half-initialized. Loading dist/components.js first works
on this branch.

Other code changes the linter forced

• perfectionist(sort-imports): import ordering across the source and the
  suites, all applied by oxlint --fix.
• unicorn(no-useless-fallback-in-spread): { ...(callback.options ?? {}), ...(options ?? {}) } becomes { ...callback.options, ...options }.
  Spreading undefined into an object literal is already a no-op, so this is
  behaviour-preserving.

Nothing was disabled. The remaining oxlint output is warnings only, which are a
deliberate backlog and are left as they are. pnpm lint exits 0.

Knip

Only ajs needed an ignore: CI installs @antelopejs/core globally instead of
adding the CLI to every package. Nothing was deleted — no unused files, exports
or dependencies are reported, and an interface package's exports are its
versioned contract, so they are kept whatever Knip could not see reaching them.

Verification

pnpm build, pnpm lint, pnpm knip, pnpm format:check all exit 0.
pnpm test: 89 passing, identical to the baseline measured on an untouched
main worktree.

The oxfmt pass is a separate commit and is recorded in .git-blame-ignore-revs
so git blame stays readable. It also normalizes Markdown, YAML and the
package.json key order, which accounts for most of the diff.