Migrate Astro from Vercel to Cloudflare Workers

Migrate this Astro project from Vercel to Cloudflare Workers (Workers with Static Assets, not Pages).

1. Install dependencies with the repository's package manager. Read package.json and astro.config.*. Note the Astro major version, whether any page renders on demand (output: 'server' or prerender = false), and the @astrojs/vercel options in use (isr, imageService, webAnalytics, speedInsights, edgeMiddleware, maxDuration). Search src/ for Cache-Control, s-maxage, stale-while-revalidate, Astro.locals.runtime, Astro.session, and @vercel/* imports.
2. On Astro 5 or 6, upgrade to Astro 7 first. `npx @astrojs/upgrade` asks for confirmation and does nothing without a terminal, so run `npm i astro@latest` and update other @astrojs/* packages. Build once with the Vercel adapter, fix upgrade errors (for example, replace `astro/client-image` with `astro/client` in src/env.d.ts), and commit the upgrade separately.
3. For a fully static site, uninstall @astrojs/vercel and remove it from astro.config. Create wrangler.jsonc with "name", "compatibility_date": "<today>", and "assets": { "directory": "./dist" }. Add "not_found_handling": "404-page" if there is a 404 page. Then go to step 7.
4. For on-demand rendering, first delete the @astrojs/vercel import and the `adapter: vercel(...)` option from astro.config. Then run `npm uninstall @astrojs/vercel && npx astro add cloudflare --yes && npm i -D wrangler`. Without --yes, astro add does nothing without a terminal.
5. astro add creates wrangler.jsonc with "name": "example". Set "name" to the repository name, "main" to "@astrojs/cloudflare/entrypoints/server", "compatibility_date" to today, "compatibility_flags" to ["global_fetch_strictly_public"], "assets" to { "binding": "ASSETS", "directory": "./dist" }, and "observability" to { "enabled": true }. Do not add nodejs_compat. A compatibility date of 2026-08-04 or later already enables it. If the app does not use Astro.session, set `session: false` in astro.config to avoid creating a KV namespace. If astro add set tsconfig.json "include" to only ["./worker-configuration.d.ts"], change it to [".astro/types.d.ts", "**/*", "./worker-configuration.d.ts"]. Add .wrangler/ and .dev.vars* to .gitignore.
6. Replace Astro.locals.runtime.env with `import { env } from "cloudflare:workers"`, Astro.locals.runtime.cf with Astro.request.cf, Astro.locals.runtime.ctx with Astro.locals.cfContext, and Astro.locals.runtime.caches with the global caches. Run `npx wrangler types`.
7. Remove Vercel:
   - Delete vercel.json, .vercel/, @vercel/* packages, and Vercel analytics components.
   - Port redirects to the astro config `redirects` option or public/_redirects. Port headers to public/_headers.
   - For crons, add triggers.crons to wrangler.jsonc and create src/worker.ts that exports { fetch: (req, env, ctx) => handle(req, env, ctx), scheduled }, with handle imported from "@astrojs/cloudflare/handler". Set "main" to that file.
   - A Worker does not cache its own responses based on Cache-Control: s-maxage. Replace Vercel isr and every page that sets s-maxage or stale-while-revalidate with Astro route caching: add `cache: { provider: cacheCloudflare() }` to astro.config (import cacheCloudflare from '@astrojs/cloudflare/cache') and call `Astro.cache.set({ maxAge, swr })` in the route. Tell me about the behavior change.
   - If webAnalytics or speedInsights was on, ask me before you create a Cloudflare Web Analytics site. On workers.dev, add the beacon script to every page.
8. Keep the default imageService 'cloudflare-binding' if <Image> is used on on-demand pages. Use imageService: 'compile' only if every image is on a prerendered page. Do not use sharp at runtime.
9. Set these scripts: preview="astro build && astro preview", deploy="astro build && wrangler deploy", and cf-typegen="wrangler types". Remove the "generate-types" script that astro add creates.
10. Run `npx astro build`, then `npx astro preview --port <port>`. Astro 7 runs the preview in the background, so stop it with `npx astro preview stop`. Check SSR routes, endpoints that use bindings, images (/_image returns image/webp), and cached routes.

Rules: work on a new git branch; store local secrets in a gitignored .dev.vars file with placeholder values; never print secret values; do not deploy, log in, or change DNS.
When you finish, list the files you changed, the Vercel features without an equivalent, the secrets I must set with `npx wrangler secret put <NAME>`, and the deploy command. Tell me to check cached routes after deploying with `curl -sI <url> | grep cf-cache-status`.