Use configured HTTP clients for all MCP OAuth requests (#35814)

## What changed

- Require callers to provide an HTTP client for MCP OAuth discovery and login, removing the separate direct `reqwest` path.
- Use the shared `http` and `url` types throughout the MCP client and drop its direct `reqwest` dependency.
- Preserve configured MCP headers when routing OAuth discovery through the provided client.

## Testing

- Add coverage that routed OAuth discovery forwards configured headers.

GitOrigin-RevId: 1345f56bd794626533133447597a5908e57b9b48
This commit is contained in:
Celia Chen authored and copyberry committed 2026-07-28 19:11:36 +00:00
1 parent 9ea975a2dc
commit 709283b432
25 files changed
+181 -380

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@@ -5,9 +5,7 @@ pub use auth::McpOAuthScopesSource;
pub use auth::ResolvedMcpOAuthScopes;
pub use auth::compute_auth_statuses;
pub use auth::discover_supported_scopes;
pub use auth::discover_supported_scopes_with_http_client;
pub use auth::oauth_login_support;
pub use auth::oauth_login_support_with_http_client;
pub use auth::resolve_oauth_scopes;
pub use auth::should_retry_without_scopes;