Refresh AGENTS.md against current code and CI

[glenn-jocher]

Refresh AGENTS.md against current code and CI (docs only, net -8 lines). No code bugs found during the review.

• Wrong: "Google-style docstrings, modern type hints, and a 120-character Python line length are formatted by Ruff" — Ruff doesn't produce docstring style; the generator emits it (lib/generators/python.ts) and format.yml sets python_docstrings: false. Removed; the Python output conventions section already covers docstrings.
• Contradiction: "Bun, Node, uv, and Python are required" vs README's "Install Bun and uv". CI never sets up Node, and Bun provides node for package scripts. Changed to Bun, uv, and Python.
• Missing checks: CI runs python -m compileall -q generated/python/src and the pinned uvx ruff@0.16.2 check generated/python, but the command block left them out. Added both, and removed the prose that duplicated them.
• Where to look: added lib/config.ts (config schema, required keys, OPENAPI_CONFIG, relative-path resolution) and scripts/headers.ts.
• Bloat: removed the duplicate "Generated output must be deterministic" line (Pitfalls covers it) and the format.yml Prettier/git pull --rebase line (PR Workflow steps 1 and 4 cover it). Condensed the Platform SDK version section to its binding rules plus a pointer to ultralytics/sdk's AGENTS.md, which already holds the full procedure word for word.

Validated: bun run generate, bun run lint, bun run test (20 pass), compileall, ruff@0.16.2 check, and prettier@3.8.5 --print-width 120 --check AGENTS.md.

🛠️ PR Summary

_{Made with ❤️ by Ultralytics Actions}

🌟 Summary

Updated AGENTS.md to match the repository’s current configuration, tooling requirements, and CI checks.

📊 Key Changes

• Added generated-Python compile and pinned Ruff check commands to the validation instructions, and clarified the required tools are Bun, uv, and Python.
• Updated “Where to look” with the configuration schema and header-generation components.
• Condensed the Platform SDK version guidance and removed duplicated or inaccurate formatting and workflow notes.

🎯 Purpose & Impact

• Keeps contributor guidance aligned with the documented CI workflow; no runtime or user-facing behavior changed.

[UltralyticsAssistant]

👋 Hello @glenn-jocher, thank you for submitting a ultralytics/openapi 🚀 PR! This automated message confirms your contribution was received, and an Ultralytics engineer will assist with the review. To ensure a seamless integration of your work, please review the following checklist:

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[UltralyticsAssistant]

🔍 PR Review

_{Made with ❤️ by Ultralytics Actions}

LGTM. Reviewed the AGENTS.md updates against the README, CI workflow, package scripts, and referenced repository locations. The guidance aligns with the current repository; no actionable issues found.

[UltralyticsAssistant]

🎉 This PR has been merged—thank you, @glenn-jocher, for updating AGENTS.md to match the repository’s current tooling and CI checks, keeping contributor guidance aligned with documented validation workflows.

“Well done is better than well said.” — Benjamin Franklin