feat: Include XMPP alt-connect data

well-known/host-meta

@@ -0,0 +1,7 @@
+<?xml version='1.0' encoding='utf-8'?>
+<XRD xmlns='http://docs.oasis-open.org/ns/xri/xrd-1.0'>
+  <Link rel="urn:xmpp:alt-connections:xbosh"
+        href="https://http.xmpp.polynom.me:443/http-bind" />
+  <Link rel="urn:xmpp:alt-connections:websocket"
+        href="wss://http.xmpp.polynom.me:443/xmpp-websocket" />
+</XRD>

well-known/host-meta.json

@@ -0,0 +1,12 @@
+{
+  "links": [
+    {
+      "rel": "urn:xmpp:alt-connections:xbosh",
+      "href": "https://http.xmpp.polynom.me:443/http-bind"
+    },
+    {
+      "rel": "urn:xmpp:alt-connections:websocket",
+      "href": "wss://http.xmpp.polynom.me:443/xmpp-websocket"
+    }
+  ]
+}