feat: move docs site from api.gen.pro to dev.gen.pro

Frees api.gen.pro for the actual Rails API. Docs now served at dev.gen.pro.
API base URL references in docs unchanged (still https://api.gen.pro/v1).

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: NEOxplus

astro.config.mjs

@@ -4,7 +4,7 @@ import starlight from '@astrojs/starlight';
 
 // https://astro.build/config
 export default defineConfig({
-	site: 'https://api.gen.pro',
+	site: 'https://dev.gen.pro',
 	integrations: [
 		starlight({
 			title: 'GEN API',

public/CNAME

@@ -1 +1 @@
-api.gen.pro
+dev.gen.pro

public/llms-full.txt

@@ -25,7 +25,7 @@ All /v1/autocontentengine/ endpoints require:
 
 ## OpenAPI Spec
 
-Full OpenAPI 3.1 specification: https://api.gen.pro/openapi.yaml
+Full OpenAPI 3.1 specification: https://dev.gen.pro/openapi.yaml
 
 ## Discovery
 

public/llms.txt

@@ -6,11 +6,11 @@ The Auto Content Engine API provides programmatic access to GEN's content creati
 
 ## Docs
 
-- [API Documentation](https://api.gen.pro)
-- [OpenAPI 3.1 Spec](https://api.gen.pro/openapi.yaml)
-- [Getting Started](https://api.gen.pro/guides/introduction/)
-- [Authentication](https://api.gen.pro/guides/authentication/)
-- [Quick Start](https://api.gen.pro/guides/quickstart/)
+- [API Documentation](https://dev.gen.pro)
+- [OpenAPI 3.1 Spec](https://dev.gen.pro/openapi.yaml)
+- [Getting Started](https://dev.gen.pro/guides/introduction/)
+- [Authentication](https://dev.gen.pro/guides/authentication/)
+- [Quick Start](https://dev.gen.pro/guides/quickstart/)
 
 ## API
 
@@ -66,6 +66,6 @@ Auth: X-API-Key header with Personal Access Token
 
 ## Optional
 
-- [llms-full.txt](https://api.gen.pro/llms-full.txt)
+- [llms-full.txt](https://dev.gen.pro/llms-full.txt)
 - [Help Center](https://docs.gen.pro)
 - [GEN Homepage](https://www.gen.pro)