merge: database backed creation entry config

# Conflicts:
#	src/components/platform-entry/PlatformEntryFlowShellImpl.tsx

server-rs/crates/spacetime-client/src/runtime.rs

@@ -1,6 +1,22 @@
 use super::*;
 
 impl SpacetimeClient {
+    pub async fn get_creation_entry_config(
+        &self,
+    ) -> Result<CreationEntryConfigRecord, SpacetimeClientError> {
+        self.call_after_connect(move |connection, sender| {
+            connection
+                .procedures()
+                .get_creation_entry_config_then(move |_, result| {
+                    let mapped = result
+                        .map_err(SpacetimeClientError::from_sdk_error)
+                        .and_then(map_creation_entry_config_procedure_result);
+                    send_once(&sender, mapped);
+                });
+        })
+        .await
+    }
+
     pub async fn get_runtime_settings(
         &self,
         user_id: String,