Add SpacetimeDB conflict migration flow

scripts/spacetime-migration-common.mjs

@@ -250,12 +250,24 @@ function normalizeSatsProduct(value) {
     };
   }
 
+  if (value.length === 5) {
+    return {
+      ok: normalizeSatsValue(value[0]),
+      schema_version: normalizeSatsValue(value[1]),
+      migration_json: normalizeSatsOption(value[2]),
+      table_stats: normalizeTableStats(value[3]),
+      warnings: [],
+      error_message: normalizeSatsOption(value[4]),
+    };
+  }
+
   return {
     ok: normalizeSatsValue(value[0]),
     schema_version: normalizeSatsValue(value[1]),
     migration_json: normalizeSatsOption(value[2]),
     table_stats: normalizeTableStats(value[3]),
-    error_message: normalizeSatsOption(value[4]),
+    warnings: normalizeMigrationWarnings(value[4]),
+    error_message: normalizeSatsOption(value[5]),
   };
 }
 
@@ -309,6 +321,28 @@ function normalizeTableStats(value) {
   });
 }
 
+function normalizeMigrationWarnings(value) {
+  if (!Array.isArray(value)) {
+    return [];
+  }
+
+  return value.map((entry) => {
+    if (entry && typeof entry === 'object' && !Array.isArray(entry)) {
+      return normalizeSatsValue(entry);
+    }
+
+    if (Array.isArray(entry)) {
+      return {
+        table_name: normalizeSatsValue(entry[0]),
+        warning_kind: normalizeSatsValue(entry[1]),
+        message: normalizeSatsValue(entry[2]),
+      };
+    }
+
+    return entry;
+  });
+}
+
 export function resolveServerUrl(options) {
   if (options.serverUrl) {
     return options.serverUrl;