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## I have read the [CONTRIBUTING.md](https://github.com/supabase/supabase/blob/master/CONTRIBUTING.md) file. YES ## What kind of change does this PR introduce? Feature (self-hosted Edge Functions) ## What is the current behavior? The self-hosted Edge Functions router (`docker/volumes/functions/main/index.ts`) doesn't tell a function which slug a request resolved to. As a result, `@supabase/server`'s `withOAuthProtectedResource` can't derive its canonical resource URL and falls back to reconstructing it from the request path against the internal `api-gw` origin, so the advertised OAuth Protected Resource is /wrong for self-hosted deployments. ## What is the new behavior? `main/index.ts` now injects `SUPABASE_FUNCTION_SLUG: service_name` per request (after the `Deno.env.toObject()` snapshot, so nothing in the container env can shadow it). Combined with the operator's `SUPABASE_PUBLIC_URL`, the advertised resource is the correct external `{SUPABASE_PUBLIC_URL}/functions/v1/{slug}`, not the internal `http://api-gw:8000`. Verified on the docker stack: the slug is injected per-function, the resource origin resolves to `SUPABASE_PUBLIC_URL`, and the `401` `www-authenticate` carries the right `resource_metadata`. ## Additional context Fixes AI-1128 Companion to `@supabase/server` [PR #117](https://github.com/supabase/server/pull/117) and the [CLI slug injection](https://github.com/supabase/cli/pull/6345) <!-- This is an auto-generated comment: release notes by coderabbit.ai --> ## Summary by CodeRabbit * **Bug Fixes** * Edge workers now receive the correct function slug in their runtime environment, improving per-function request handling. <!-- end of auto-generated comment: release notes by coderabbit.ai -->