feat: framework integrations (Astro, SvelteKit, Waku) without wrangler

[john-royal]

Framework integrations for Astro, SvelteKit, and Waku with no wrangler dependency and no wrangler config files anywhere. (Next.js is split out to #82.)

// framework-core: platform-neutral orchestration; the deploy target is a value
interface DeployTarget<Config> {
  platform: string;
  config: Config;                 // opaque target carriage
  bundle?: { conditions, external, mainFields };  // resolve/bundle settings
  build?: (ctx) => Effect<BuildOutput>;   // wholesale takeover (OpenNext case)
  finish?: (output, ctx) => Effect<BuildOutput>;  // post-adapt finishing pass
  serve?: (ctx) => Effect<{ url }, ..., Scope>;   // local serving of built output
}

Architecture: frameworks × deploy targets

Each framework package (waku, astro, sveltekit) is split into platform-neutral orchestration and a Cloudflare target module at the ./cloudflare subpath (adapter forks, vite-plugin injection, workerd dev). Framework options take target as a prop; per-package import-boundary tests enforce zero cloudflare imports outside the target modules. Future AWS targets slot in as sibling target modules without touching the framework halves — groundwork for AWS website resources.

• framework-core — BuildOutput contract, collector, loaders, Framework service, DeployTarget.
• waku — programmatic vite build/dev, wrangler-free adapter fork, SSG.
• astro — forked createIntegration; vendored runtime entrypoints (neither wrangler nor @cloudflare/vite-plugin enter the tree).
• sveltekit — in-memory kit adapter + rolldown finishing pass.
• Each ships a ./source entry implementing alchemy's WorkerSourceModule contract structurally.

Fixtures

Deep per-framework coverage (live + dev playwright): waku — server actions, dynamic routes, API routes, hydration, SSG (20 tests); astro — middleware/locals, redirects, binary endpoints, content collections, islands (18); sveltekit — form actions with and without JS, cookie loads, route groups, binary endpoints, prerender+SSR mix (22); plus vocs (Waku-based docs framework) riding the waku cloudflare target with two documented workerd bridges (9); and the five pre-existing fixtures.

Supporting changes

• cloudflare-runtime: PlatformProxy.open / getPlatformProxy (wrangler-free platform proxy), KvNamespace.local, Service.self(), workerd exception capture, Windows socket-churn fixes.
• cloudflare-vite-plugin / cloudflare-rolldown-plugin: skipEnvironments, guarded buildApp default, dev.middlewareOrder.
• tools/e2e: pluggable Framework services; target-scoped config carriage (options.target, legacy vite/miniflare aliases kept); harness owns dist/build.json — Framework.build() is pure.
• upstream/: workers-sdk moved under upstream/; shallow submodules for next.js, opennextjs-cloudflare, astro, sveltekit, waku.
• Research docs and spike fixtures retired — durable content absorbed into package READMEs and AGENTS.md; history keeps the rest.

CI green on ubuntu/macos/windows (fixture e2e serialized on Windows; sveltekit fixture gated there — documented runner-level socket exhaustion).

🤖 Generated with Claude Code

[alchemy-version-bot]

Install the packages built from this commit:

@distilled.cloud/cloudflare-rolldown-plugin

bun add https://pkg.distilled.cloud/cloudflare-rolldown-plugin/3280c29

@distilled.cloud/cloudflare-runtime

bun add https://pkg.distilled.cloud/cloudflare-runtime/3280c29

@distilled.cloud/cloudflare-vite-plugin

bun add https://pkg.distilled.cloud/cloudflare-vite-plugin/3280c29