build(test-dramatiq): Migrate to uv and pyproject.toml

[ericapisani]

Summary

• Replace pip/requirements.txt with uv/pyproject.toml for dependency management
• Update run.sh and run-worker.sh to use uv run instead of manual venv creation and pip install
• Remove legacy requirements.txt

Refs PY-2446

Test plan

• Verify pyproject.toml includes all dependencies from the original requirements.txt
• Verify shell scripts use uv run
• Verify requirements.txt is removed

🤖 Generated with Claude Code

[linear-code]

PY-2446

[sentry]

Bug: The script installs uv but fails to update the current shell's PATH, causing subsequent uv commands to fail on clean systems.
_{Severity: HIGH}

Suggested Fix

After the uv installation command, either add ~/.local/bin to the PATH for the current session (e.g., export PATH="$HOME/.local/bin:$PATH") or call uv using its full path ($HOME/.local/bin/uv run ...). This ensures the executable is found in the same session it was installed in.

Prompt for AI Agent

Review the code at the location below. A potential bug has been identified by an AI
agent. Verify if this is a real issue. If it is, propose a fix; if not, explain why it's
not valid.

Location: test-dramatiq/run.sh#L5-L9

Potential issue: On a system where `uv` is not pre-installed, the script installs it to
`~/.local/bin/` but does not update the `PATH` of the current shell session. The
subsequent call to `uv run ...` fails with a 'command not found' error. Because the
script is configured with `set -euo pipefail`, this error causes the script to abort
immediately, making it impossible to run on a clean system. The same issue exists in the
`run-worker.sh` script.

Also affects:

• test-dramatiq/run-worker.sh:5~14

_{Did we get this right? 👍 / 👎 to inform future reviews.}