🧹 [Code Health] Remove unused json import from cross_agent.py

[wjohns989]

🎯 What: Removed an unused import json statement from muninn/advanced/cross_agent.py.
💡 Why: To improve code health and maintainability by removing dead code.
✅ Verification: Ran uv run pytest to ensure no functionality is broken and verified that the json module is not referenced anywhere in the modified file. Restored uv.lock modifications made during the test suite execution to ensure a clean diff.
✨ Result: Improved code cleanliness without altering functionality.

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PR created automatically by Jules for task 13304632183088549964 started by @wjohns989

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[gemini-code-assist]

Code Review

This pull request removes an unused json import in muninn/advanced/cross_agent.py. The reviewer suggested further cleanup by removing the unused Set type from the typing module and recommended adding a blank line between standard library and third-party imports to adhere to PEP 8 standards.

[gemini-code-assist]

While removing unused imports, please also remove Set from the typing import (currently on line 13), as it is not used in this file. Additionally, to adhere to PEP 8 import grouping rules, consider adding a blank line between the standard library imports and the third-party httpx import.

References

1. PEP 8 recommends grouping imports into standard library, third-party, and local application imports, with a blank line between each group. ^(link)