feat: add cspell configuration and CI spell-check

.github/workflows/build.yml

@@ -169,3 +169,16 @@ jobs:
       - uses: actions/checkout@v4
       - uses: jupyterlab/maintainer-tools/.github/actions/base-setup@v1
       - uses: jupyterlab/maintainer-tools/.github/actions/check-links@v1
+
+  spell-check:
+    name: Spell Check
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Base Setup
+        uses: jupyterlab/maintainer-tools/.github/actions/base-setup@v1
+
+      - name: Run spell check
+        run: jlpm run spell-check

cspell.json

@@ -0,0 +1,45 @@
+{
+  "version": "0.2",
+  "ignorePaths": [
+    "node_modules",
+    "package-lock.json",
+    "yarn.lock",
+    "dist",
+    "lib",
+    "build",
+    "coverage",
+    ".vscode",
+    ".git",
+    "*.min.js",
+    "*.min.css",
+    "*.map",
+    "jupyterlab_deepnote/labextension"
+  ],
+  "language": "en",
+  "overrides": [
+    {
+      "filename": "**/*.md",
+      "words": [
+        "deepnote",
+        "jupyter",
+        "jupyterlab",
+        "ipynb",
+        "labextension",
+        "jlpm",
+        "pnpm",
+        "monorepo"
+      ]
+    }
+  ],
+  "words": [
+    "deepnote",
+    "jupyter",
+    "jupyterlab",
+    "ipynb",
+    "labextension",
+    "jlpm",
+    "pnpm",
+    "monorepo"
+  ],
+  "useGitignore": true
+}

package.json

@@ -53,6 +53,8 @@
         "stylelint": "jlpm stylelint:check --fix",
         "stylelint:check": "stylelint --cache \"style/**/*.css\"",
         "test": "jest --coverage",
+        "spell-check": "cspell \"**/*.{md,txt,json,js,ts,tsx,jsx,yml,yaml}\"",
+        "spell-check:fix": "cspell \"**/*.{md,txt,json,js,ts,tsx,jsx,yml,yaml}\" --no-exit-code --show-suggestions",
         "watch": "run-p watch:src watch:labextension",
         "watch:src": "tsc -w --sourceMap",
         "watch:labextension": "jupyter labextension watch ."
@@ -70,6 +72,7 @@
         "zod": "^4.1.11"
     },
     "devDependencies": {
+        "cspell": "9.2.1",
         "@jupyterlab/builder": "^4.0.0",
         "@jupyterlab/testutils": "^4.0.0",
         "@types/jest": "^29.2.0",