fix(python): correct ruff PATH in python-v2/pydantic-model Dockerfile

[Swimburger]

Description

Fixes incorrect PATH for ruff in the python-v2 pydantic-model Dockerfile. The ruff standalone installer (astral.sh/ruff/install.sh) installs to ~/.local/bin, not ~/.cargo/bin. With the wrong PATH, ruff would not be found at runtime when the generator attempts to format generated code.

Changes Made

• Changed ENV PATH="/root/.cargo/bin:${PATH}" → ENV PATH="/root/.local/bin:/root/.cargo/bin:${PATH}" in generators/python-v2/pydantic-model/Dockerfile

Both paths are now included: /root/.local/bin (where ruff actually installs) is added first, and /root/.cargo/bin is retained for future-proofing in case cargo-installed tools are ever added.

This aligns with the sister python-v2/sdk/Dockerfile, which already correctly uses /root/.local/bin.

Testing

• Verified by running curl -LsSf https://astral.sh/ruff/install.sh | sh in a node:lts-slim container — binary is placed at /root/.local/bin/ruff, not /root/.cargo/bin/ruff
• Manual testing completed — Dockerfile-only change; requires Docker build to fully validate

Human Review Checklist

• Verify the ruff install script installs to ~/.local/bin (confirmed by running the installer in a fresh node:lts-slim container)
• Note: the commented-out # RUN ruff --version line would have caught this at build time if it were active — consider uncommenting it in a follow-up (addressed in PR chore(python): uncomment ruff version check in python-v2 Dockerfiles #13880)

Link to Devin session: https://app.devin.ai/sessions/371cc6bdbad447bb9161b29b0ab8ec28
Requested by: @Swimburger

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[Swimburger]

Should we add both to PATH?

[devin-ai-integration]

Good idea — adding both would be more defensive. Right now nothing in this Dockerfile installs to /root/.cargo/bin, but keeping it wouldn't hurt and would future-proof the image if cargo-installed tools are ever added.

I'll update the PR to use ENV PATH="/root/.local/bin:/root/.cargo/bin:${PATH}" instead.