The previous stub file (2e29e362) wrapped `interface Env` in
`declare global { ... }`, but the file has no top-level import/export so
it's a script, not a module. TS2669 forbids `declare global` in scripts,
and in .d.ts files that error is silently swallowed — so the Env stubs
were never merged into the global scope. Locally typecheck passed only
because worker-configuration.d.ts (gitignored) provided Env separately;
in CI / fresh clones, `BUCKET`, `MAX_BYTES`, `DEFAULT_TTL_DAYS`,
`PUBLIC_URL` were all missing on Env.
Drop the wrapper. Top-level `interface Env` in a script .d.ts is already
global ambient and merges with worker-configuration.d.ts via interface
declaration merging, so both environments typecheck cleanly.
Co-Authored-By: glm-5.2 <zai-org@claude-code-best.win>
The wrangler-generated worker-configuration.d.ts is gitignored, causing CI to
fail with missing ExportedHandler/Env/R2Bucket types. This file provides minimal
stubs for all Cloudflare Workers types used by the artifact upload Worker.
Co-Authored-By: glm-5-turbo <zai-org@claude-code-best.win>
