🛡️ Sentinel: Add explicit timeouts to fetch requests

[schmug]

🛡️ Sentinel: [MEDIUM] Add timeout configurations to global API fetch calls

🚨 Severity: MEDIUM
💡 Vulnerability: Global fetch calls across components and API libraries lacked explicit timeouts, leading to potential DoS risks or application hangs from indefinitely delayed responses.
🎯 Impact: If an internal API endpoint (like /api/blog.json) or an external API (like api.github.com) hangs and fails to respond, the application promise will block indefinitely, causing hanging UI states or failed background fetches.
🔧 Fix: Implemented defense-in-depth by adding a 10s timeout (signal: AbortSignal.timeout(10000)) to all global fetch operations to prevent blocking threads.
✅ Verification: Run pnpm test and pnpm lint to ensure stability. No functional changes occurred; application fails securely if a timeout happens.

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PR created automatically by Jules for task 14529616724112407526 started by @schmug

[google-labs-jules]

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[schmug]

Superseded by #127 (merged to main), which consolidated the best of the duplicate Bolt/Sentinel/Palette scheduled-agent PRs into one reviewed change. Closing as duplicate.

[google-labs-jules]

Superseded by #127 (merged to main), which consolidated the best of the duplicate Bolt/Sentinel/Palette scheduled-agent PRs into one reviewed change. Closing as duplicate.

Understood. Acknowledging that this work is now obsolete and stopping work on this task.