[cursor]

Summary

• remove sentry.snuba.metrics.query_builder from the sentry modules with typing issues mypy override list in pyproject.toml
• fix all remaining mypy issues in src/sentry/snuba/metrics/query_builder.py via explicit type narrowing, improved optional handling, and typed casts where params are forwarded
• keep behavior unchanged while making the module pass strict type checking without the exemption

Testing

• SENTRY_CONF=/workspace/self-hosted SENTRY_REDIS_HOST=127.0.0.1 SENTRY_SECRET_KEY=dev-secret-key-long-enough-for-local-only-1234 .venv/bin/mypy -p sentry.snuba.metrics.query_builder
• .venv/bin/prek run -q
• attempted: SENTRY_CONF=/workspace/self-hosted SENTRY_REDIS_HOST=127.0.0.1 SENTRY_SECRET_KEY=dev-secret-key-long-enough-for-local-only-1234 SENTRY_SKIP_SERVICE_VALIDATION=1 .venv/bin/pytest -n3 -svv --reuse-db tests/sentry/snuba/metrics/test_query_builder.py (blocked by missing local Redis/Docker services in this VM)

Legal Boilerplate

Look, I get it. The entity doing business as "Sentry" was incorporated in the State of Delaware in 2015 as Functional Software, Inc. and is gonna need some rights from me in order to utilize my contributions in this here PR. So here's the deal: I retain all rights, title and interest in and to my contributions, and by keeping this boilerplate intact I confirm that Sentry can use, modify, copy, and redistribute my contributions, under Sentry's choice of terms.

@armenzg could you review this when you have a chance?

  

[getsantry]

This pull request has gone three weeks without activity. In another week, I will close it.

But! If you comment or otherwise update it, I will reset the clock, and if you add the label WIP, I will leave it alone unless WIP is removed ... forever!

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"A weed is but an unloved flower." ― Ella Wheeler Wilcox 🥀