Sync with facet.cafe install script

Author: eXamadeus

README.md

@@ -9,7 +9,10 @@ Full documentation is available at [agentfacets.io](https://agentfacets.io).
 ## Quickstart
 
 ```shell
-# Install the CLI
+# Install the CLI (macOS/Linux)
+curl -fsSL https://install.agentfacets.io | bash
+
+# Or via npm (all platforms, including Windows)
 npm install -g agent-facets
 
 # For closed-alpha partners: see docs/alpha/partner-onboarding.md

docs/docs.json

@@ -124,7 +124,7 @@
         "type": "button",
         "icon": "download",
         "label": "Download CLI",
-        "href": "https://facet.cafe/install"
+        "href": "https://install.agentfacets.io"
       }
     ]
   },

docs/index.md

@@ -15,7 +15,7 @@ references that extend AI coding assistants.
 <CodeGroup>
 
 ```shell curl
-curl -fsSL https://facet.cafe/install | bash
+curl -fsSL https://install.agentfacets.io | bash
 ```
 
 ```shell npm