docs: add ac whoami command reference

[mysekai7]

Summary by CodeRabbit

• Documentation
  • Updated the developer command reference with comprehensive documentation for the ac whoami command, including usage examples for displaying the currently authenticated user, context details, server API URL, and authentication token.

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ℹ️ Review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Run ID: 84ab8182-ab11-42ab-88e2-0c6e511dd39e

📥 Commits

Reviewing files that changed from the base of the PR and between 0afdff6 and 8afae60.

📒 Files selected for processing (1)

• docs/en/ui/cli_tools/ac/developer-command-reference.md

Walkthrough

This PR adds documentation for the ac whoami CLI command to the developer command reference guide. The new section includes a command description and four example usages demonstrating how to display the authenticated user, print the context name, show the server REST API URL, and output the session token.

Changes

AC CLI Documentation

Layer / File(s)	Summary
Command Reference docs/en/ui/cli_tools/ac/developer-command-reference.md	New ac whoami command documentation with description and four usage examples: basic display, context name flag (-c), server URL flag (--show-server), and token flag (-t).

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~2 minutes

Poem

A curious rabbit asks "who am I?"
The whoami command answers with pride,
Context, token, and server in sight—
Documentation now shines bright,
Users will know their identity! 🐰✨

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title accurately describes the main change: adding documentation for the 'ac whoami' command reference. It is concise, clear, and directly matches the changeset content.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

_{✏️ Tip: You can configure your own custom pre-merge checks in the settings.}

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch backport/ac-whoami-master

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[coderabbitai]

Actionable comments posted: 1

🤖 Prompt for all review comments with AI agents

Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

Inline comments:
In `@docs/en/ui/cli_tools/ac/developer-command-reference.md`:
- Around line 2021-2022: Add a one-line security caution immediately after the
"ac whoami -t" example warning that the printed session token is sensitive and
should not be exposed in logs, shell history, screenshots, or shared output;
reference the example command "ac whoami -t" so editors can locate it and ensure
the wording is concise (e.g., "Caution: the token printed by ac whoami -t is
sensitive—do not expose it in logs, shell history, or screenshots.").

🪄 Autofix (Beta)

Fix all unresolved CodeRabbit comments on this PR:

• Push a commit to this branch (recommended)
• Create a new PR with the fixes

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ℹ️ Review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Run ID: 3976ec32-a8f1-49df-8748-dc01113b9e20

📥 Commits

Reviewing files that changed from the base of the PR and between 79a424c and 0afdff6.

📒 Files selected for processing (1)

• docs/en/ui/cli_tools/ac/developer-command-reference.md