🧪 [Add test for HTTP listen capability check]

[Tcode-Motion]

🎯 What: Added a unit test to verify that the listen function in std.http correctly returns an error when the Network capability is denied in the RuntimeConfig.
📊 Coverage: Tests the security capability check error path of the listen built-in function, which was previously missing a dedicated test.
✨ Result: Enhanced test suite coverage for security policy enforcements around network binding.

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PR created automatically by Jules for task 9005908784732688979 started by @Tcode-Motion

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