tip: public Copilot host for github.com (#51895)

[kvnloo]

Tip leaf (fork-only) — CLEAN

Maps to work-order issue #192. Upstream origin anomalyco#51895 (not touched / not promoted).

What: Use public Copilot host (api.githubcopilot.com) for github.com OAuth accounts instead of the enterprise remapped host.

Commit: 911c20258696f2f546dae0673f240981c964a6b4
Origin tip SHA: 633fbe9c3fb448e7de17e9e70aabb6b88eca9681

Proof: fail→pass on packages/opencode/test/plugin/github-copilot-models.test.ts (GREEN 8 / NEG 1 fail / RESTORE 8).

github_writes_origin: 0. Codex promote parked.

[github-actions]

Hey! Your PR title tip: public Copilot host for github.com (#51895) doesn't follow conventional commit format.

Please update it to start with one of:

• feat: or feat(scope): new feature
• fix: or fix(scope): bug fix
• docs: or docs(scope): documentation changes
• chore: or chore(scope): maintenance tasks
• refactor: or refactor(scope): code refactoring
• test: or test(scope): adding or updating tests

Where scope is the package name (e.g., app, desktop, opencode).

See CONTRIBUTING.md for details.

[github-actions]

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