Backlog/v12 api key settings

[AlexSanchez-bit]

No description provided.

[github-actions]

✅ AI review — Clean

No issues detected in this diff.

✅ architecture (gemini-3-flash-lite) — clean

Summary: Frontend UI update to conditionally hide API keys in federation mode; no architectural impact.

No findings.

✅ bugs (gemini-3-flash-lite) — clean

Summary: Added conditional API keys link to sidebar; no functional bugs found.

No findings.

✅ security (gemini-3-flash-lite) — clean

Summary: The PR adds a conditional UI element for API key management in the sidebar; no security vulnerabilities or information disclosures identified.

No findings.

🟢 go-deps — up to date

No pending Go dependency updates.