feat: add documentation website with Docusaurus build pipeline (#1177)

* feat: add documentation website with Docusaurus build pipeline

* feat(docs): add AI discovery meta tags for llms.txt files

- Add global headTags with ai-terms, llms, llms-full meta tags
- Update landing page link to clarify AI context purpose

* fix(docs): restore accidentally deleted faq.md and glossary.md

Files were removed in 12dd97fe during path restructuring.

* fix(docs): update broken project-readme links to GitHub URL

* feat(schema): add compound trigger format validation

tools/cli/lib/agent/template-engine.js

@@ -140,36 +140,6 @@ function getDefaultValues(installConfig) {
   return defaults;
 }
 
-/**
- * Filter out empty/null/undefined values from customization data
- * @param {Object} data - Data to filter
- * @returns {Object} Filtered data
- */
-function filterCustomizationData(data) {
-  const filtered = {};
-
-  for (const [key, value] of Object.entries(data)) {
-    if (value === null || value === undefined || value === '') {
-      continue; // Skip null/undefined/empty values
-    }
-
-    if (Array.isArray(value)) {
-      if (value.length > 0) {
-        filtered[key] = value;
-      }
-    } else if (typeof value === 'object') {
-      const nested = filterCustomizationData(value);
-      if (Object.keys(nested).length > 0) {
-        filtered[key] = nested;
-      }
-    } else {
-      filtered[key] = value;
-    }
-  }
-
-  return filtered;
-}
-
 module.exports = {
   processTemplate,
   processConditionals,
@@ -179,5 +149,4 @@ module.exports = {
   processAgentYaml,
   getDefaultValues,
   cleanupEmptyLines,
-  filterCustomizationData,
 };