[docs-agent] Update CLI documentation - Go version, commands, Mermaid diagrams

[redhat-chai-bot]

Automated Documentation Update

Changes Made

• CLAUDE.md: Updated Go version from 1.25 to 1.26.3, added hyperfleet-api/clientset as a key dependency
• docs/architecture/ARCHITECTURE.md: Added documentation for 5 missing command groups (cluster, nodepool, login, clusteroidc, version) and converted ASCII art diagrams to Mermaid format

Triggered By

Recent PRs (last 7 days):

• ROSAENG-65393: refactor: migrate CLI to use rosa-hyperfleet-api clientset/SDK #124 - Clientset/SDK migration — major dependency change requiring doc updates
• ROSAENG-65393: chore: update verify target #123 - Go 1.26.3 upgrade — version bump not reflected in CLAUDE.md
• ROSAENG-65393: chore: add lint tools #122, NO-JIRA: chore: Update CI root image ref #121, ROSAENG-65393: chore: update Go version to 1.26.3 and align CI scripts #119 - CLI improvements

Overall Documentation Validation:

• CLAUDE.md: Fixed Go version (1.25 → 1.26.3), added clientset dependency
• ARCHITECTURE.md: Added 5 undocumented command groups (cluster, nodepool, login, clusteroidc, version)
• ARCHITECTURE.md: Converted ASCII art diagrams to Mermaid for consistency
• Prettier formatting: ✅ All files pass

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Generated by Chai Bot documentation update task (weekly validation).

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AI-generated. Review for accuracy.

Automated by scheduled task rosa_hyperfleet_docs_update (instructions: ship_help_bot/shared/instructions/scheduled/rosa_hyperfleet_docs_update.md, run: 3912dacb, commit: e531cb87-dirty)

[coderabbitai]

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_{Comment @coderabbitai help to get the list of available commands.}

[openshift-ci]

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