feat(linter): add codespell linter

Add the codespell linter which uses a dictionary of common misspellings
and ignores unknown words.

Signed-off-by: Roger Luethi <roger.luethi@bisdn.de>

Author: ideaship

.automation/generated/linter-helps.json

@@ -84,6 +84,11 @@
     "image": "https://opengraph.githubassets.com/bf0d187aea6f03a804178458080b2be18a5fd1bf8d8cc353ff3150743aae9805/greglook/cljstyle",
     "title": "GitHub - greglook/cljstyle: A tool for formatting Clojure code"
   },
+  "codespell": {
+    "description": "codespell checks code and documentation for common misspellings.",
+    "image": null,
+    "title": "codespell-project/codespell: check code for common misspellings"
+  },
   "coffeelint": {
     "description": "\n          CoffeeLint is a style checker that helps keep\n          CoffeeScript\n          code clean and consistent. CoffeeScript does a great job at\n          insulating programmers from many of\n          JavaScript's bad parts, but it won't help enforce a consistent style\n          across a code base. CoffeeLint can help with that.\n        ",
     "image": null,
@@ -639,4 +644,4 @@
     "image": "https://avatars3.githubusercontent.com/u/5244945?s=400&v=4",
     "title": "adrienverge/yamllint"
   }
-}
+}

.automation/generated/linter-links-previews.json

@@ -15,6 +15,7 @@
     "clippy": "0.1.90",
     "clj-kondo": "2025.09.22",
     "cljstyle": "0.17.642",
+    "codespell": "2.3.0",
     "coffeelint": "5.2.11",
     "cppcheck": "2.14.2",
     "cpplint": "2.0.2",

.automation/generated/linter-versions.json

@@ -103,6 +103,7 @@
   "spell_proselint",
   "spell_vale",
   "spell_lychee",
+  "spell_codespell",
   "sql_sqlfluff",
   "sql_tsqllint",
   "swift_swiftlint",

.automation/generated/linters_matrix.json

@@ -0,0 +1,2 @@
+abandonded Dockefile
+abberivated acadamy

.automation/test/spell_codespell/spell_bad_1.md

@@ -0,0 +1,2 @@
+abandonded Dockefile
+abberivated acadamy

.automation/test/spell_codespell/spell_fix_1.md

@@ -0,0 +1,2 @@
+abandoned Dockerfile
+abbreviated academy

.automation/test/spell_codespell/spell_good_1.md

@@ -76,6 +76,8 @@
         "citeyear",
         "ckKXNNNXkc",
         "cloneable-readable",
+        "codespell",
+        "codespellrc",
         "crcr",
         "cyclonedx",
         "dKNNXXO",

.cspell.json

@@ -25,6 +25,7 @@ DISABLE_ERRORS_LINTERS:
   - REPOSITORY_DEVSKIM
   - REPOSITORY_GRYPE
   - REPOSITORY_SEMGREP
+  - SPELL_CODESPELL
   - SPELL_LYCHEE
   - YAML_YAMLLINT
 PRINT_ALL_FILES: false

.mega-linter.yml

@@ -12,6 +12,7 @@ Note: Can be used with `oxsecurity/megalinter@beta` in your GitHub Action mega-l
 
 - New linters
   - Add [Robocop](https://github.com/MarketSquare/robotframework-robocop) linter, by @bdovaz in <https://github.com/oxsecurity/megalinter/pull/6232>
+  - Add [codespell](https://github.com/codespell-project/codespell)
 
 - Disabled linters