fix(cloudflare): D1 value-union params + Vectorize raw x-ndjson body

[sam-goodwin]

Three Cloudflare SDK-accuracy fixes surfaced by the alchemy *Local bindings work (alchemy-run/alchemy#807), plus the small core/generator enablers they need.

D1 — params typed as string[]

The cloudflare-typescript SDK genuinely under-types D1 query/raw params (single and batch) as Array<string>, so Distilled rejected native D1 bind values during request encoding (SchemaError: Expected string, got 42). The D1 HTTP API accepts numbers/null/BLOB verbatim (verified live), so model params as the wire-accurate value union string | number | null | number[] (TEXT/INTEGER-REAL/NULL/BLOB) via request patches on queryDatabase + rawDatabase.

Vectorize — insert/upsert sent as multipart instead of a raw body

The SDK sends the ndjson payload as a raw application/x-ndjson request body:

this._client.post(url, { body, headers: { 'Content-Type': 'application/x-ndjson' } });

The generator's Core.Uploadable ⇒ multipart form file heuristic mis-modeled it. Model it as a raw binary body carrying application/x-ndjson so it matches the SDK/API (not multipart).

Core / generator enablers

• HttpTrait.bodyMediaType — a contentType: "binary" request can now carry a specific Content-Type (e.g. application/x-ndjson) instead of the generic application/octet-stream. setBinaryBody threads it into the HttpBody so setBody can't clobber it; a caller-supplied content-type header still wins.
• The cloudflare generator now treats a format: binary body under any non-multipart content-type as a raw binary body (not a form file) and carries its media type through.
• A patch appendUnion now wraps a non-union scalar field into a union (previously it only extended existing unions), which is what makes the D1 value union expressible.

All regenerated against current main; the cloudflare package builds, and the changes are exercised by alchemy's live D1/Vectorize/R2 *Local tests (binary-body path unregressed).

[alchemy-version-bot]

Install the packages built from this commit:

@distilled.cloud/core

bun add @distilled.cloud/core@https://pkg.distilled.cloud/core/ef9c953

@distilled.cloud/aws

bun add @distilled.cloud/aws@https://pkg.distilled.cloud/aws/ef9c953

@distilled.cloud/axiom

bun add @distilled.cloud/axiom@https://pkg.distilled.cloud/axiom/ef9c953

@distilled.cloud/azure

bun add @distilled.cloud/azure@https://pkg.distilled.cloud/azure/ef9c953

@distilled.cloud/cloudflare

bun add @distilled.cloud/cloudflare@https://pkg.distilled.cloud/cloudflare/ef9c953

@distilled.cloud/coinbase

bun add @distilled.cloud/coinbase@https://pkg.distilled.cloud/coinbase/ef9c953

@distilled.cloud/expo-eas

bun add @distilled.cloud/expo-eas@https://pkg.distilled.cloud/expo-eas/ef9c953

@distilled.cloud/fly-io

bun add @distilled.cloud/fly-io@https://pkg.distilled.cloud/fly-io/ef9c953

@distilled.cloud/gcp

bun add @distilled.cloud/gcp@https://pkg.distilled.cloud/gcp/ef9c953

@distilled.cloud/kubernetes

bun add @distilled.cloud/kubernetes@https://pkg.distilled.cloud/kubernetes/ef9c953

@distilled.cloud/mongodb-atlas

bun add @distilled.cloud/mongodb-atlas@https://pkg.distilled.cloud/mongodb-atlas/ef9c953

@distilled.cloud/neon

bun add @distilled.cloud/neon@https://pkg.distilled.cloud/neon/ef9c953

@distilled.cloud/planetscale

bun add @distilled.cloud/planetscale@https://pkg.distilled.cloud/planetscale/ef9c953

@distilled.cloud/posthog

bun add @distilled.cloud/posthog@https://pkg.distilled.cloud/posthog/ef9c953

@distilled.cloud/prisma-postgres

bun add @distilled.cloud/prisma-postgres@https://pkg.distilled.cloud/prisma-postgres/ef9c953

@distilled.cloud/stripe

bun add @distilled.cloud/stripe@https://pkg.distilled.cloud/stripe/ef9c953

@distilled.cloud/supabase

bun add @distilled.cloud/supabase@https://pkg.distilled.cloud/supabase/ef9c953

@distilled.cloud/turso

bun add @distilled.cloud/turso@https://pkg.distilled.cloud/turso/ef9c953

@distilled.cloud/typesense

bun add @distilled.cloud/typesense@https://pkg.distilled.cloud/typesense/ef9c953

@distilled.cloud/workos

bun add @distilled.cloud/workos@https://pkg.distilled.cloud/workos/ef9c953