Enhance markdown linting and spellcheck scripts for language-specific processing

Author: zdrawku

MARKDOWNLINT_RULES.md

@@ -93,15 +93,28 @@ npx markdownlint --config .markdownlint.json "en/**/*.md"
 # Lint all markdown files
 npm run lint:md
 
-# Fix auto-fixable issues
+# Lint only English docs
+npm run lint:md:en
+
+# Lint only Japanese docs
+npm run lint:md:jp
+
+# Fix auto-fixable issues (all files)
 npm run lint:md:fix
 
-# Run spell check only
+# Run spell check on English docs only
 npm run spellcheck
 
-# Run full verification (includes spell check)
+# Run spell check on Japanese docs only
+npm run spellcheck:jp
+
+# Run full verification on English docs (spell check + linting)
 npm run verify
 
+# Run full verification on Japanese docs (spell check + linting)
+npm run verify:jp
+```
+
 ## Auto-Fix Capabilities
 
 ### Recommended Workflow

package.json

@@ -10,11 +10,13 @@
     "test": "echo \"Error: no test specified\" && exit 1",
     "postinstall": "dotnet tool restore",
     "lint:md": "markdownlint \"**/*.md\" --config .markdownlint.json",
+    "lint:md:en": "markdownlint \"en/**/*.md\" --config .markdownlint.json",
+    "lint:md:jp": "markdownlint \"jp/**/*.md\" --config .markdownlint.json",
     "lint:md:fix": "markdownlint \"**/*.md\" --config .markdownlint.json --fix",
     "spellcheck": "cspell \"en/**/*.md\"",
     "spellcheck:jp": "cspell \"jp/**/*.md\"",
-    "verify": "npm run spellcheck && npm run lint:md -- \"en/**/*.md\"",
-    "verify:jp": "npm run spellcheck:jp && npm run lint:md -- \"jp/**/*.md\""
+    "verify": "npm run spellcheck && npm run lint:md:en",
+    "verify:jp": "npm run spellcheck:jp && npm run lint:md:jp"
   },
   "author": "Infragistics",
   "license": "ISC",