👷 new link checker to ensure local files and anchor ilnks are checked

.github/linter/.mlc_config.json

@@ -0,0 +1,29 @@
+{
+  "ignorePatterns": [
+    {"pattern": "dco.txt"},
+    {"pattern": ".*?templates.*?"},
+    {"pattern": "TBD"}
+  ],
+  "_aliveComment": "Some sites return 403 from GH Actions check; 400 from twitter (login redirect)",
+  "aliveStatusCodes": [
+    0,
+    200,
+    206,
+    400,
+    403,
+    429,
+    500,
+    503
+  ],
+  "headers": {
+    "User-Agent": "Mozilla/5.0 (Windows; U; Windows NT 5.1; de; rv:1.9.2.3) Gecko/20100401 Firefox/3.6.3"
+  },
+  "httpHeaders": [
+    {
+      "urls": ["https://www.linkedin.com/company/commonhaus-foundation/"],
+      "headers": {
+        "User-Agent": "Mozilla/5.0 (Windows; U; Windows NT 5.1; de; rv:1.9.2.3) Gecko/20100401 Firefox/3.6.3"
+      }
+    }
+  ]
+}

.github/linter/package.json

@@ -0,0 +1,16 @@
+{
+  "type": "module",
+  "scripts": {
+    "build": "npx tsc -p tsconfig.json",
+    "lint": "npm run build && node ./dist/validate.js"
+  },
+  "devDependencies": {
+    "@types/node": "^22.10.2",
+    "link-check": "^5.4.0",
+    "markdown-link-check": "^3.13.6",
+    "markdownlint": "^0.35.0",
+    "marked": "^15.0.3",
+    "typescript": "^5.7.2",
+    "yaml": "^2.3.4"
+  }
+}

.github/linter/tsconfig.json

@@ -0,0 +1,19 @@
+{
+  "compilerOptions": {
+    "target": "ES2020",
+    "module": "ESNext",
+    "moduleResolution": "node",
+    "outDir": "./dist",
+    "esModuleInterop": true,
+    "noImplicitAny": false,
+    "noEmitOnError": true,
+    "removeComments": false,
+    "sourceMap": true,
+  },
+  "include": [
+    "validate.ts"
+  ],
+  "exclude": [
+    "node_modules"
+  ]
+}