docs: Improve API doc groups and polish docstrings #236

Job	Run time
PR title check	4s
Docstrings checks / Docstrings checks	24s
Code checks / Actions lint check	31s
Code checks / Spell check	5s
Doc checks / Doc checks / Docs check	1m 19s
Code checks / Type check / Type check (3.14)	10s
Code checks / Type check / Type check (3.13)	10s
Code checks / Type check / Type check (3.12)	13s
Code checks / Lint check / Lint check (3.13)	11s
Code checks / Lint check / Lint check (3.11)	12s
Code checks / Lint check / Lint check (3.12)	16s
Code checks / Type check / Type check (3.11)	10s
Tests / Unit tests / Unit tests (ubuntu-latest, 3.14)	42s
Tests / Unit tests / Unit tests (windows-latest, 3.12)	1m 20s
Code checks / Lint check / Lint check (3.14)	12s
Tests / Unit tests / Unit tests (windows-latest, 3.11)	51s
Tests / Unit tests / Unit tests (ubuntu-latest, 3.12)	41s
Tests / Unit tests / Unit tests (windows-latest, 3.13)	55s
Tests / Unit tests / Unit tests (ubuntu-latest, 3.11)	39s
Tests / Unit tests / Unit tests (ubuntu-latest, 3.13)	39s
Tests / Unit tests / Unit tests (windows-latest, 3.14)	52s
Tests / Integration tests / Integration tests (ubuntu-latest, 3.14)	1m 24s
Tests / Integration tests / Integration tests (ubuntu-latest, 3.11)	1m 30s
	13m 30s

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