🛡️ Sentinel: [HIGH] Fix missing authentication on /api/jules/sources

[parvezk]

🚨 Severity: HIGH
💡 Vulnerability: The /api/jules/sources endpoint was exposed globally without authentication checks, bypassing Supabase RLS and allowing unauthenticated users to trigger external API calls.
🎯 Impact: Unauthorized users could potentially abuse the external proxy endpoint, which calls realJulesPort using server-side keys.
🔧 Fix: Added a currentUserId() check to explicitly block unauthenticated requests with a 401 Unauthorized status response before invoking any external logic.
✅ Verification: Ran cd web && pnpm lint and pnpm test. Verified .jules/sentinel.md journal updates. Checked that the fix strictly meets the <50 line constraint and relies entirely on existing authentication infrastructure without altering system logic.

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PR created automatically by Jules for task 6900605253930524247 started by @parvezk

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Project	Deployment	Actions	Updated (UTC)
polyagent	Ready	Preview, Comment	Jul 28, 2026 9:10am

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