feat(tools): add timeout control for web fetch

[AbdullahFageeh]

Add optional timeout_ms for WebFetch requests, apply timeout-specific error handling, and cover the behavior with a timeout-focused unit test.

Summary

• TBD

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[1716775457damn]

Good addition. Timeout control for web fetch is essential when dealing with unreliable endpoints — without it, a hung request can block the entire agent workflow. The implementation looks clean with proper timeout-specific error handling. One suggestion: consider documenting the default timeout value in the tool description so callers know what to expect when they omit imeout_ms.

[1716775457damn]

Timeout control for web fetch is a practical addition. The timeout-specific error handling makes it easy to distinguish network timeouts from other fetch failures in calling code. One suggestion: consider documenting the default timeout behavior in the config reference so users understand what happens without explicitly setting timeout_ms.