improve terminal operator ux

[TacoRocket]

What changed

• replaced generic command running lines with command-specific operator narration
• reworked table-mode rendering to use curated columns for key commands instead of raw schema projection
• surfaced findings, collection issues, and takeaway summary lines directly in table mode
• added terminal UX tests for identity commands and partial-read auth policy visibility

Why it changed

• the identity checkpoint data is validated, but the live terminal experience still lagged behind the CloudFox-style operator workflow
• this follow-up tightens stdout without changing the underlying JSON contracts or evidence boundaries

Impact

• live table-mode output is more curated, more narrative, and easier to interpret quickly during operator use
• role-trusts, auth-policies, privesc, principals, and whoami now provide more useful takeaways in terminal mode

Validation

• python3 -m pytest
• python3 -m ruff check src/azurefox tests