[zhou-jianwen]

Add Path.rglob(pattern) for recursive path discovery, addressing the rglob item in #214.

Delegate matching to the host platform's pathlib.Path.rglob and lazily convert results through the captured _next_class. This preserves ordinary subclasses and TempDir's conversion to Path. Document hidden-entry matching, host case/separator semantics and the distinction between recursive directory-symlink traversal and an explicitly named symlink segment. Existing glob and iglob behavior is unchanged; their documentation points to the new method.

Validation:

• Python 3.10.22 and 3.14.10 primary tox environments: 177 passed, 1 skipped each, including formatting, lint and mypy. Unmodified Python 3.14 baseline: 164 passed, 1 skipped.
• All 13 added regression cases fail against the original source and pass with the implementation. They cover nested/hidden matches, literal brackets in the root, nonmatches, multi-segment patterns, observable filesystem laziness, subclasses, direct TempDir use, custom-module host semantics and directory symlinks.
• Strict Sphinx build and sphinxlint pass. The Towncrier draft includes the new fragment with Maximize compatibility with pathlib.Path #214; NEWS.rst is unchanged. git diff --check passes.

Local verification was on macOS arm64; hosted platform checks remain to be run.

AI assistance: OpenAI Codex was used for implementation, tests and automated review.