fix: Improve Ctrl+C interruption of MCP tool calls

[szmania]

Summary

This PR improves the handling of Ctrl+C interruptions during MCP tool calls, making the interruption more responsive and reliable.

Changes

• Enhanced interrupt handling for MCP tool calls to provide better user experience when cancelling long-running operations
• Improved Ctrl+C interruption mechanism to properly terminate MCP tool execution
• Fixed edge cases where interruptions weren't being handled correctly

Testing

• Tested interruption scenarios with various MCP tool calls
• Verified that Ctrl+C properly terminates tool execution without leaving hanging processes
• Confirmed clean state restoration after interruption

Related Issues

Fixes issues with unresponsive MCP tool call interruptions that could leave processes hanging or require force termination.

Commits

• 821717a fix: Improve Ctrl+C interruption of MCP tool calls
• 9a9da53 fix: Improve interrupt handling for MCP tool calls