docs: enforce public API docstrings

[IceCodeNew]

Summary

• document Python modules, classes, functions, methods, constructors, and context-manager hooks with concise responsibility and behavior docstrings
• enforce the complete stable Ruff pydocstyle rule set with the Google convention through existing local hooks and CI lint jobs
• explicitly exclude formatter-conflicting D203, D206, and D300 rules, and exclude tests where behavior-focused names are the primary documentation

Validation

• mise exec -- uv run --with pytest --with pytest-cov -- pytest --cov --cov-branch --cov-report=xml (529 passed; 100% source line and branch coverage)
• .venv/bin/ruff check .
• .venv/bin/ruff format --check .
• prek run

Summary by CodeRabbit

• Documentation
  • Added comprehensive documentation for public modules, classes, methods, protocols, and data models.
  • Clarified provider behavior, configuration, publishing, rendering, reference data, state management, and service orchestration.
  • Added documentation linting rules using the Google documentation convention.
• Refactor
  • Centralized timezone-awareness validation while preserving existing behavior.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: 7852b36c-ce04-4993-8080-23dc40d48d09

📥 Commits

Reviewing files that changed from the base of the PR and between da86457 and f17ac30.

📒 Files selected for processing (19)

• pyproject.toml
• weather_briefing/air_quality.py
• weather_briefing/allergen.py
• weather_briefing/api_client.py
• weather_briefing/cli.py
• weather_briefing/config.py
• weather_briefing/content_cleaners.py
• weather_briefing/geocoding.py
• weather_briefing/llm.py
• weather_briefing/models.py
• weather_briefing/prompts.py
• weather_briefing/publishers.py
• weather_briefing/reference_data.py
• weather_briefing/render.py
• weather_briefing/service.py
• weather_briefing/sources.py
• weather_briefing/state.py
• weather_briefing/time_utils.py
• weather_briefing/weather_context.py

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📝 Walkthrough

Walkthrough

Ruff now enforces Google-style documentation rules, and docstrings were added throughout providers, domain models, configuration, orchestration, persistence, rendering, publishing, and CLI modules. A timezone validation helper was extracted without changing behavior.

Changes

Documentation and lint coverage

Layer / File(s)	Summary
Lint configuration and core contracts pyproject.toml, weather_briefing/models.py, weather_briefing/time_utils.py, weather_briefing/content_cleaners.py, weather_briefing/config.py, weather_briefing/reference_data.py, weather_briefing/prompts.py	Ruff enables D checks with Google conventions, while core models, utilities, configuration, reference data, and cleaning interfaces receive documentation.
Provider and source adapters weather_briefing/air_quality.py, weather_briefing/allergen.py, weather_briefing/api_client.py, weather_briefing/geocoding.py, weather_briefing/llm.py, weather_briefing/sources.py, weather_briefing/weather_context.py	Provider protocols, constructors, fetch methods, adapters, and conversion helpers gain module, class, and method docstrings.
CLI orchestration, delivery, and state weather_briefing/cli.py, weather_briefing/service.py, weather_briefing/render.py, weather_briefing/publishers.py, weather_briefing/state.py	CLI commands, briefing orchestration, renderers, publishers, SQLite state operations, and diagnostics helpers are documented without runtime logic changes.

Estimated code review effort: 2 (Simple) | ~10 minutes

Possibly related PRs

• IceCodeNew/weather-briefing#12: Adds regression tests for AQI and AQICN guidance functions documented in this change.

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title accurately summarizes the main change: adding and enforcing public API docstrings.
Docstring Coverage	✅ Passed	Docstring coverage is 93.33% which is sufficient. The required threshold is 80.00%.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

✨ Finishing Touches

📝 Generate docstrings

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch codex/enforce-docstring-coverage

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 99.62%. Comparing base (da86457) to head (f17ac30).
✅ All tests successful. No failed tests found.

Additional details and impacted files

@@           Coverage Diff           @@
##           master      #38   +/-   ##
=======================================
  Coverage   99.62%   99.62%           
=======================================
  Files          39       39           
  Lines        5851     5884   +33     
  Branches      337      337           
=======================================
+ Hits         5829     5862   +33     
  Misses         15       15           
  Partials        7        7           

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[IceCodeNew]

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