Add "Уточняется" fallback helper + orange styling per TZ 4.1.23

src/shared/tbd.test.ts

@@ -0,0 +1,39 @@
+import { describe, expect, it } from "vitest";
+import { tbdOr } from "./tbd.js";
+
+describe("4.1.23-R: tbdOr fallback", () => {
+  const t = (k: string) => (k === "SHARED.TBD" ? "Уточняется" : k);
+
+  it("returns TBD string for null", () => {
+    expect(tbdOr(null, t)).toBe("Уточняется");
+  });
+
+  it("returns TBD string for undefined", () => {
+    expect(tbdOr(undefined, t)).toBe("Уточняется");
+  });
+
+  it("returns TBD string for empty string", () => {
+    expect(tbdOr("", t)).toBe("Уточняется");
+  });
+
+  it("returns TBD string for whitespace-only string", () => {
+    expect(tbdOr("   ", t)).toBe("Уточняется");
+  });
+
+  it("returns the value when non-empty string", () => {
+    expect(tbdOr("A320", t)).toBe("A320");
+  });
+
+  it("returns numeric value as-is", () => {
+    expect(tbdOr(42, t)).toBe(42);
+  });
+
+  it("returns non-string non-number values as-is", () => {
+    const obj = { code: "MOW" };
+    expect(tbdOr(obj, t)).toBe(obj);
+  });
+
+  it("returns 0 as-is (not treated as missing)", () => {
+    expect(tbdOr(0, t)).toBe(0);
+  });
+});

src/shared/tbd.ts

@@ -0,0 +1,26 @@
+/**
+ * "Уточняется" fallback per TZ §4.1.23.
+ *
+ * When a field is null / undefined / empty string / whitespace, returns
+ * the localized "Уточняется" label. Otherwise returns the value as-is.
+ *
+ * NOTE: Only apply to fields TZ explicitly enumerates for this fallback
+ * (gate, terminal, aircraft type, bag belt, dispatch type, etc.). Don't
+ * use as a blanket fallback for all nullable fields — Angular reference
+ * uses dashes/absent rendering for fields not listed in §4.1.23.
+ *
+ * Styling: callers are responsible for applying the orange color class
+ * (`.tbd-text` or equivalent) when rendering the fallback string.
+ */
+
+// eslint-disable-next-line @typescript-eslint/no-explicit-any
+type TFunction = (key: string, opts?: any) => string;
+
+export function tbdOr<T>(
+  value: T | null | undefined,
+  t: TFunction,
+): T | string {
+  if (value === null || value === undefined) return t("SHARED.TBD");
+  if (typeof value === "string" && value.trim() === "") return t("SHARED.TBD");
+  return value;
+}