feat: Complete Phase 5C and Phase 5D documentation, including performance metrics, SEO optimization, and advanced features implementation

docs: Add production deployment success documentation for Azure Static Web App

docs: Create Quick Start guide for project setup and deployment instructions

docs: Update README.md to include new documentation links and structure

docs: Enhance User Manual with detailed portal access, roles, and AI assistance features

scripts: Implement architecture diagram export script using Mermaid CLI

scripts: Create script to auto-generate documentation index for easier navigation

chore: Remove unused update-doc-index script

scripts/generate-doc-index.mjs

@@ -0,0 +1,55 @@
+#!/usr/bin/env node
+/**
+ * Auto-generate docs/README.md index.
+ * Scans docs directory for .md files (excluding README.md) and categorizes by simple heuristics.
+ */
+import { readdirSync, readFileSync, writeFileSync } from 'fs'
+import { join } from 'path'
+
+const DOCS_DIR = join(process.cwd(), 'docs')
+const OUTPUT = join(DOCS_DIR, 'README.md')
+
+// Basic categorization keywords
+const categories = [
+  { name: 'Getting Started', match: [/quickstart/i, /usermanual/i] },
+  { name: 'Architecture & Engineering', match: [/architecture/i, /implementation/i, /diagram/i] },
+  { name: 'Delivery & Reports', match: [/completion/i, /deployment/, /update/, /phases_all/i, /production_deployment/ ] },
+  { name: 'Performance & Optimization', match: [/performance/i, /seo/i] },
+  { name: 'Change History', match: [/changelog/i] },
+  { name: 'AI & Advanced Features', match: [/ai/i] }
+]
+
+function categorize(file) {
+  const lower = file.toLowerCase()
+  for (const cat of categories) {
+    if (cat.match.some(r => r.test(lower))) return cat.name
+  }
+  return 'Other'
+}
+
+function build() {
+  const files = readdirSync(DOCS_DIR)
+    .filter(f => f.endsWith('.md') && f !== 'README.md')
+    .sort()
+
+  const byCategory = {}
+  for (const f of files) {
+    const cat = categorize(f)
+    byCategory[cat] = byCategory[cat] || []
+    byCategory[cat].push(f)
+  }
+
+  const quickLinks = files.map(f => `- [${f.replace(/_/g,' ')}](./${f})`).join('\n')
+
+  let body = '# Documentation Index\n\n(Generated by scripts/generate-doc-index.mjs)\n\n## Quick Links\n' + quickLinks + '\n\n'
+
+  for (const cat of Object.keys(byCategory).sort()) {
+    body += `### ${cat}\n` + byCategory[cat].map(f => `- ${f}`).join('\n') + '\n\n'
+  }
+
+  body += '---\nLast regenerated: ' + new Date().toISOString() + '\n'
+  writeFileSync(OUTPUT, body)
+  console.log('docs/README.md regenerated.')
+}
+
+build()