Simplify trace plugin setup by removing extra CLI dependencies

[adagradschool]

Summary

This simplifies the trace plugin runtime and setup flow by removing the need for jq, curl, and uuidgen.

Users now only need python3 for the trace hooks to run.

User impact

• fewer system-level dependencies to install
• more consistent behavior across environments
• simpler setup and CI configuration
• no expected change to plugin behavior

What changed

• moved hook implementation details into a Python runtime
• kept the existing shell hook entrypoints, but made them thin wrappers
• replaced shell-based JSON handling, ID generation, and HTTP export logic
• updated setup and validation scripts to avoid extra CLI tools
• added broader automated test coverage
• switched development and CI workflows to uv and pytest

Verification

• ran make test
• unit tests passed
• fixture replay passed
• manifest validation passed