Refresh the homepage and improve export and draft guidance

artifacts-plugin-regression.json

@@ -0,0 +1,16 @@
+{
+  "passed": true,
+  "checks": [
+    "missing export guidance",
+    "empty area failure",
+    "real Paper export without a player",
+    "shared schema validation",
+    "TUS interruption and byte-perfect resume",
+    "repeated upload is idempotent",
+    "cancellation preserves completed export"
+  ],
+  "blocks": 10112,
+  "chunks": 16,
+  "viewpoints": 5,
+  "directory": ".cache/plugin-regression-1791117070908"
+}