fix: very_good_cli MCP 'test' tool hangs

[sergiossm]

Description

when claude code tries to run tests during /build phase, process hangs:

⏺ Now run analyze and tests.

⏺ Bash(cd "/Users/..." && dart analyze 2>&1 | tail -40)
  ⎿  Analyzing...
     No issues found!

⏺ Bash(cd "/Users/..." && flutter test 2>&1 | tail -80)
  ⎿  Error: Do not use 'flutter test' or 'dart test'. Use the very_good_cli MCP 'test' tool instead.

⏺ Calling plugin:vgv-ai-flutter-plugin:very-good-cli… (ctrl+o to expand)

very_good test runs successfully on my terminal tho

Steps to Reproduce

implement a plan with /build command

Expected Behavior

claude code runs very_good test via mcp and process doesn't hang

Additional Context

No response