#1238 deploy governing doc

[kennethshsu]

Summary of Changes

Straight deployment of the governing doc and converted into a MD file

Related GitHub Issue(s)

Closes #1238

Additional Context for Reviewers

No words changed from the GDocs' version, except:

• Added a link to the contributing guide under section 4
• Removed the TODO under "Review Principles" about TDD. I think we can add this later (if needed).
• Added the page title
• Added a hyphen to the "dev-branches"
• Capitalized the I in "PyPI"

Checklist

• I passed tests locally for both code (uv run pytest) and documentation changes (uv run --directory docs jb build . --builder=custom --custom-builder=doctest)

---

Note

Low Risk
Documentation-only change with no runtime, API, or CI behavior changes; future PRs may be held to new stated governance requirements.

Overview
Adds docs/library/governance.md to the doc site as the official Governing Doc for chainladder-python under CAS OSPWG, covering governance roles, maintainer eligibility and voting, development standards (Pandas/sklearn/Ruff), contribution workflow (branching, PR prefixes, AI disclosure, review/CI, emergency hotfixes), releases (semver, PyPI/conda publishing), security, citation, and code of conduct.

docs/_toc.yml now lists the page under the library About section (ahead of usage and contributing). Compared to the source Google Doc, this PR adds a link to contributing.md in the dev-environment section and drops a TDD TODO from Review Principles.

^{Reviewed by Cursor Bugbot for commit 4872412. Bugbot is set up for automated code reviews on this repo. Configure here.}

[github-actions]

Pyright Type Completeness

View the full pyright --verifytypes output for this commit

Project (full chainladder package, at this PR's head): 15.2% of exported symbols fully typed (209 / 1377)

	Known	Ambiguous	Unknown	Total
Project (head)	209	111	1057	1377

Other symbols referenced but not exported by chainladder: 13

	Known	Ambiguous	Unknown	Total
Other (head)	3	1	9	13

Symbols without documentation:

• Functions without docstring: 325
• Functions without default param: 0
• Classes without docstring: 10

Patch (exported symbols added or changed by this PR): no exported symbol type-completeness changes detected.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 91.70%. Comparing base (e07c09e) to head (4872412).

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1242   +/-   ##
=======================================
  Coverage   91.70%   91.70%           
=======================================
  Files          93       93           
  Lines        5438     5438           
  Branches      699      699           
=======================================
  Hits         4987     4987           
  Misses        327      327           
  Partials      124      124           

Flag	Coverage Δ
unittests	91.70% <ø> (ø)

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