refactor: reuse shared string coercion in ui

ui/src/ui/string-coerce.ts

@@ -1,25 +1,6 @@
-export function normalizeOptionalString(value: unknown): string | undefined {
-  if (typeof value !== "string") {
-    return undefined;
-  }
-  const trimmed = value.trim();
-  return trimmed ? trimmed : undefined;
-}
-
-export function normalizeStringifiedOptionalString(value: unknown): string | undefined {
-  if (typeof value === "string") {
-    return normalizeOptionalString(value);
-  }
-  if (typeof value === "number" || typeof value === "boolean" || typeof value === "bigint") {
-    return normalizeOptionalString(String(value));
-  }
-  return undefined;
-}
-
-export function normalizeOptionalLowercaseString(value: unknown): string | undefined {
-  return normalizeOptionalString(value)?.toLowerCase();
-}
-
-export function normalizeLowercaseStringOrEmpty(value: unknown): string {
-  return normalizeOptionalLowercaseString(value) ?? "";
-}
+export {
+  normalizeLowercaseStringOrEmpty,
+  normalizeOptionalLowercaseString,
+  normalizeOptionalString,
+  normalizeStringifiedOptionalString,
+} from "../../../src/shared/string-coerce.js";