feat: Rebrand to License Authority with Govt of Goa branding

- Replace TLAS with License Authority throughout documentation
- Add Government of Goa emblem/logo (Ashoka Chakra style)
- Update frontend branding to match documentation
- Add configurable Swagger API link via VITE_API_BASE_URL env var
- Fix Docker build for VitePress (git dependency, .dockerignore)
- Fix helmet security headers for HTTP deployments
- Add CORS support for VM deployment

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Documentation/.vitepress/theme/ApiDocsLink.vue

@@ -0,0 +1,10 @@
+<script setup>
+const apiBaseUrl = import.meta.env.VITE_API_BASE_URL || ''
+const swaggerUrl = `${apiBaseUrl}/api/docs`
+</script>
+
+<template>
+  <a :href="swaggerUrl" target="_blank" rel="noopener">
+    <slot>Open API Documentation →</slot>
+  </a>
+</template>