fix(auth): add User-Agent header to GitHub API requests

[kamine81]

What does this PR do?

GitHub's REST API requires a User-Agent header and returns 403 for any request without one. Both fetchProfile (in consumer.ts) and fetchGitHubEmail (in providers/github.ts) were omitting this header, causing OAuth login to fail for users whose GitHub email is set to private.

Type of change

• Bug fix

Checklist

• I have read CONTRIBUTING.md
• pnpm typecheck passes
• pnpm --silent lint:json | jq '.diagnostics | length' returns 0
• pnpm test passes (or targeted tests for my change)
• pnpm format has been run
• I have added/updated tests for my changes (if applicable)
• I have added a changeset (if this PR changes a published package)

AI-generated code disclosure

• This PR includes AI-generated code

Screenshots / test output

✓ src/oauth/providers/github.test.ts (4 tests) 22ms
  ✓ fetchGitHubEmail > sends User-Agent header required by GitHub API
  ✓ fetchGitHubEmail > returns the primary verified email
  ✓ fetchGitHubEmail > throws when GitHub API returns 403 (e.g. missing User-Agent)
  ✓ fetchGitHubEmail > throws when no verified primary email exists

[changeset-bot]

🦋 Changeset detected

Latest commit: e3a4a3c

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 10 packages

Name	Type
@emdash-cms/auth	Patch
emdash	Patch
@emdash-cms/cloudflare	Patch
@emdash-cms/plugin-ai-moderation	Patch
@emdash-cms/plugin-atproto	Patch
@emdash-cms/plugin-audit-log	Patch
@emdash-cms/plugin-color	Patch
@emdash-cms/plugin-embeds	Patch
@emdash-cms/plugin-forms	Patch
@emdash-cms/plugin-webhook-notifier	Patch

Not sure what this means? Click here to learn what changesets are.

Click here if you're a maintainer who wants to add another changeset to this PR

[github-actions]

All contributors have signed the CLA ✍️ ✅
_{Posted by the CLA Assistant Lite bot.}

[kamine81]

I have read the CLA Document and I hereby sign the CLA

[ascorbic]

Thanks!

[pkg-pr-new]

Open in StackBlitz

@emdash-cms/admin

npm i https://pkg.pr.new/@emdash-cms/admin@452

@emdash-cms/auth

npm i https://pkg.pr.new/@emdash-cms/auth@452

@emdash-cms/blocks

npm i https://pkg.pr.new/@emdash-cms/blocks@452

@emdash-cms/cloudflare

npm i https://pkg.pr.new/@emdash-cms/cloudflare@452

emdash

npm i https://pkg.pr.new/emdash@452

create-emdash

npm i https://pkg.pr.new/create-emdash@452

@emdash-cms/gutenberg-to-portable-text

npm i https://pkg.pr.new/@emdash-cms/gutenberg-to-portable-text@452

@emdash-cms/x402

npm i https://pkg.pr.new/@emdash-cms/x402@452

@emdash-cms/plugin-ai-moderation

npm i https://pkg.pr.new/@emdash-cms/plugin-ai-moderation@452

@emdash-cms/plugin-atproto

npm i https://pkg.pr.new/@emdash-cms/plugin-atproto@452

@emdash-cms/plugin-audit-log

npm i https://pkg.pr.new/@emdash-cms/plugin-audit-log@452

@emdash-cms/plugin-color

npm i https://pkg.pr.new/@emdash-cms/plugin-color@452

@emdash-cms/plugin-embeds

npm i https://pkg.pr.new/@emdash-cms/plugin-embeds@452

@emdash-cms/plugin-forms

npm i https://pkg.pr.new/@emdash-cms/plugin-forms@452

@emdash-cms/plugin-webhook-notifier

npm i https://pkg.pr.new/@emdash-cms/plugin-webhook-notifier@452

commit: e3a4a3c