Consolidate codespell config into pyproject.toml for standalone use

Refactor codespell setup so `codespell` (or `uvx codespell`) works
standalone without relying on pre-commit args or separate ignore files.

Config changes:
- Expanded skip patterns: *.bib (author names), *.png (embedded text),
  *.scss, _extensions (third-party Quarto code), socratiQ (bundled JS),
  build outputs (_site, _book, htmlcov), caches (.cache, .npm)
- Added ignore-regex for camelCase/PascalCase identifiers and URLs
- Added documented ignore-words-list for legitimate terms (contributor
  names, abbreviations, TikZ labels, domain terms)
- Removed .codespell-ignore-words.txt (had merge conflict markers;
  contents merged into pyproject.toml)

Relaxed exclusions (no longer blanket-skipped):
- *.json (only .all-contributorsrc skipped now)
- *.js (only socratiQ skipped now)
- *.tex (only _extensions skipped now)

Pre-commit: removed custom args/exclude overrides, bumped to v2.4.1,
now uses pyproject.toml config via tomli dependency.

Typo fix: akumulators → accumulators (inject_quizzes.lua comment)

Co-Authored-By: Claude Code 2.1.63 / Claude Opus 4.6 <noreply@anthropic.com>

.codespell-ignore-words.txt

@@ -1,39 +0,0 @@
-heros
-fith
-curren
-aline
-gage
-akumulators
-ans
-titel
-socio
-ser
-currenty
-initialy
-assertin
-mor
-dota
-appen
-multline
-ource
-bu
-sting
-te
-crossreference
-linez
-als
-fo
-listin
-nam
-ture
-handlin
-panting
-occurence
-socio-economic
-rin
-nd
-ure
-<<<<<<< Updated upstream
-=======
-ure
->>>>>>> Stashed changes

.pre-commit-config.yaml

@@ -37,12 +37,13 @@ repos:
         exclude: "^(_site/)"
 
   - repo: https://github.com/codespell-project/codespell
-    rev: v2.3.0
+    # Configuration for codespell is in pyproject.toml
+    rev: v2.4.1
     hooks:
       - id: codespell
         name: "Global: Check for common misspellings"
-        args: ["--skip", "*.json,*.bib,*.js,*.tex,_site,_book,node_modules,.venv,htmlcov", "--ignore-words", ".codespell-ignore-words.txt"]
-        exclude: "^(_site/|_book/|htmlcov/|.*\\.js$)"
+        additional_dependencies:
+          - tomli
 
   # ===========================================================================
   # SECTION 2: BOOK HOOKS (quarto content validation)

book/quarto/filters/inject_quizzes.lua

@@ -332,7 +332,7 @@ local function insert_quizzes(doc)
     return b.t == "Header" and b.level == 1
   end
 
-  -- akumulators
+  -- accumulators
   local new_blocks      = {}
   local chapter_blocks  = {}
   local chapter_answers = {}

pyproject.toml

@@ -268,7 +268,18 @@ skips = ["B101", "B601"]  # Skip assert_used and shell=True (sometimes needed)
 
 [tool.codespell]
 # Ref: https://github.com/codespell-project/codespell#using-a-config-file
-skip = '.git,.gitignore,.gitattributes,*.pdf,*.svg,*.ai,package-lock.json,*.css,*.min.*'
+skip = '.git,.gitignore,.gitattributes,*.pdf,*.svg,*.ai,*.png,*.bib,*.css,*.scss,*.min.*,package-lock.json,_site,_book,node_modules,.venv,.tox,htmlcov,.cache,.npm,.all-contributorsrc,*/socratiQ/*,*/_extensions/*,.codespell-ignore-words.txt,.codespell-ignore'
 check-hidden = true
-# ignore-regex = ''
-# ignore-words-list = ''
+# Ignore camelCase and PascalCase identifiers (common in TikZ/code), and URLs
+ignore-regex = '\b[a-z]+[A-Z]\w*\b|\b[A-Z][a-z]+[A-Z]\w*\b|https?://\S+'
+# rin/curren - contributor names; nd - abbreviation (2nd, CC BY-ND);
+# ans - variable for "answer"; mor - person name (Mor Harchol-Balter);
+# dota - the game; ser - abbreviation (Speech Emotion Recognition);
+# fo - TikZ node label; als - Alternating Least Squares algorithm;
+# appen - company name; handlin - person name; ource/ure - regex fragments;
+# multline - LaTeX amsmath environment; panting/sting - correct English words;
+# unknow - intentional usage; gage - person name (Philip Gage);
+# aline/linez - TikZ style names; socio - prefix (socio-economic);
+# heros - TeX Gyre Heros font; fith - PDF FitH parameter;
+# activ - abbreviation for Activation; te - regex fragment
+ignore-words-list = 'rin,curren,nd,ans,mor,dota,ser,fo,als,appen,handlin,ource,ure,multline,panting,sting,unknow,gage,aline,linez,socio,heros,fith,activ,te,ture'