Add sync error logging, extend error flash, fix unload saves

- Log workforce sync errors to backend stdout so they appear in docker logs
- Extend error flash from 5s to 15s so errors are readable
- Replace sendBeacon (POST-only) with keepalive fetch (PUT) on unload —
  sendBeacon was hitting 404s on all three unload saves

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

frontend/node_modules/lucide-react/dist/esm/createLucideIcon.mjs

@@ -0,0 +1,32 @@
+/**
+ * @license lucide-react v1.24.0 - ISC
+ *
+ * This source code is licensed under the ISC license.
+ * See the LICENSE file in the root directory of this source tree.
+ */
+
+import { forwardRef, createElement } from 'react';
+import { mergeClasses } from './shared/src/utils/mergeClasses.mjs';
+import { toKebabCase } from './shared/src/utils/toKebabCase.mjs';
+import { toPascalCase } from './shared/src/utils/toPascalCase.mjs';
+import Icon from './Icon.mjs';
+
+const createLucideIcon = (iconName, iconNode) => {
+  const Component = forwardRef(
+    ({ className, ...props }, ref) => createElement(Icon, {
+      ref,
+      iconNode,
+      className: mergeClasses(
+        `lucide-${toKebabCase(toPascalCase(iconName))}`,
+        `lucide-${iconName}`,
+        className
+      ),
+      ...props
+    })
+  );
+  Component.displayName = toPascalCase(iconName);
+  return Component;
+};
+
+export { createLucideIcon as default };
+//# sourceMappingURL=createLucideIcon.mjs.map