chore: remove committed build artifacts and tighten .gitignore

[Copilot]

215 build-generated files were accidentally committed, bloating the repo with Sphinx doctrees, rendered HTML, font assets, backup tarballs, and LaTeX logs.

Removed from tracking (git rm --cached)

• .ghpages/ — full Sphinx HTML output tree (old manual deploy method)
• docs/build/ — doctrees, rendered HTML, and LaTeX PDF output
• docs/backups/ — HTML backup tarballs
• docs/texput.log — LaTeX build log
• docs/Makefile — was already gitignored but had been committed
• source/ (root-level) — stale conf.py / index.rst leftover, superseded by docs/source/

.gitignore updates

Replaced the piecemeal per-file/per-subdir patterns with broader directory-level ignores:

-docs/build/latex/*
-!docs/build/latex/target_setter.pdf
-docs/build/doctrees/*
-docs/build/html/_images
-docs/build/html/_static
-...
+docs/build/
+docs/backups/
+docs/texput.log
+source/
+.ghpages/

Repository drops from 445 → 230 tracked files. All remaining files are source, published assets, or intentional project artifacts.

Original prompt

clean up my git

Created from VS Code.

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[Copilot]

Pull request overview

Removes accidentally committed documentation build artifacts (Sphinx HTML/doctrees, LaTeX logs, backup tarballs, and legacy GitHub Pages output) and updates .gitignore to prevent reintroducing them.

Changes:

• Removed tracked build-generated docs output under docs/build/ and legacy deployment output under .ghpages/
• Removed stale root-level source/ Sphinx stub files and other stray build artifacts (docs/texput.log, committed docs/Makefile)
• Simplified .gitignore to ignore entire build/output directories (docs/build/, docs/backups/, .ghpages/, etc.)

Reviewed changes

Copilot reviewed 89 out of 216 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
.gitignore	Broadens ignore patterns for docs build/backups and legacy deploy output (needs a small fix to avoid ignoring docs/source/).
source/conf.py	Removes stale root-level Sphinx config superseded by docs/source/conf.py.
source/index.rst	Removes stale root-level Sphinx index superseded by docs/source/index.rst.
docs/Makefile	Removes previously committed docs build Makefile (was intended to be untracked).
docs/texput.log	Removes LaTeX build log artifact and adds ignore rule to keep it untracked.
docs/build/**	Removes Sphinx build outputs (HTML, doctrees, LaTeX outputs) from version control.
docs/backups/**	Removes backup tarballs from version control and adds ignore rule to keep them untracked.
.ghpages/**	Removes legacy GitHub Pages output tree from version control and adds ignore rule to keep it untracked.

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