Documentation: Add and configure sphinx-sitemap extension

[amotl]

For better discovery of all documentation ingredients.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Repository UI

Review profile: CHILL

Plan: Pro

Run ID: 01f79e4a-be10-4eca-9d07-5519737f6f7c

📥 Commits

Reviewing files that changed from the base of the PR and between 6abcf81 and 3353dfc.

📒 Files selected for processing (2)

• doc/conf.py
• pyproject.toml

✅ Files skipped from review due to trivial changes (1)

• doc/conf.py

🚧 Files skipped from review as they are similar to previous changes (1)

• pyproject.toml

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Walkthrough

Adds sitemap generation to the Sphinx documentation by enabling the sphinx_sitemap extension, setting html_baseurl and sitemap_url_scheme, and excluding specific pages and paths from the sitemap.

Changes

Cohort / File(s)	Summary
Sphinx Documentation Configuration doc/conf.py	Added sphinx_sitemap to extensions; set html_baseurl to https://cratedb-toolkit.readthedocs.io/; configured sitemap_url_scheme as {link}; added sitemap_excludes for search.html, genindex.html, and _snippet/*.
Project Dependencies pyproject.toml	Added sphinx-sitemap<3 to optional-dependencies.docs.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~3 minutes

Poem

🐰
A sitemap hops into the light,
Linking docs from left to right.
Search and index take a nap,
While paths and snippets skip their map —
Hooray, the docs now have a trail! 🥕✨

🚥 Pre-merge checks | ✅ 3

✅ Passed checks (3 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title accurately describes the main change: adding and configuring the sphinx-sitemap extension for documentation.
Description check	✅ Passed	The description is related to the changeset, explaining the purpose of the sphinx-sitemap addition for better documentation discovery.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

_{✏️ Tip: You can configure your own custom pre-merge checks in the settings.}

✨ 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 sphinx-sitemap

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