[Createitv]

问题与结果 / Problem and outcome

Users can now run agc auth whoami after authentication to identify the active credential safely. Huawei only exposes official team/developer account information through its OAuth Client team-list API, so the command keeps local identity and OAuth team lookup explicit instead of presenting a profile label as a developer name.

改动 / Changes

• Add agc auth whoami for active profile, API Client ID, Service Account sub_account, and project context.
• Add --teams using AGC_OAUTH2_TOKEN to call Huawei's official OAuth-only team account endpoint.
• Keep Client Key, private keys, and OAuth tokens out of output and errors.
• Add bilingual README/user-guide documentation and changelog entry.

兼容性 / Compatibility

• CLI: new non-breaking auth subcommand and AGC_OAUTH2_TOKEN environment variable.
• REST: None.
• Configuration: existing credentials remain unchanged; OAuth token is ephemeral and never persisted.
• Output schema: new whoami envelope only.

验证 / Validation

• Focused whoami and team-list tests passed.
• make ci passed with 84.9% total Go coverage and web tests/build.
• go test -race ./... passed.
• Official API reviewed: Project Management team-list access requires OAuth Client mode.
• No live Huawei OAuth token was used; remote behavior is covered with an isolated HTTP server.

文档与完成条件 / Documentation and completion

• Focused scope, no unrelated files
• Behavior changes have unit and command tests
• CLI/REST boundary checked
• Compatibility and output behavior documented
• Chinese and English docs updated
• User-visible change added to CHANGELOG
• Relevant checks run; live OAuth limitation disclosed
• Examples and logs contain no secrets