refactor(workouts): drop the unused clock arguments of the blank draft

src/components/workouts/manual-workout-form.tsx

@@ -116,7 +116,7 @@ export function ManualWorkoutForm({
   // a submit after an edit updates the row the first submit stored.
   const [externalId] = useState(newManualWorkoutExternalId);
   const [draft, setDraft] = useState<ManualWorkoutDraft>(() =>
-    emptyManualWorkoutDraft(new Date(), timezone),
+    emptyManualWorkoutDraft(),
   );
   const [errors, setErrors] = useState<
     Partial<Record<ManualWorkoutField, string>>

src/lib/workouts/__tests__/manual-entry.test.ts

@@ -242,7 +242,7 @@ describe("buildManualWorkoutEntry — validation", () => {
 describe("the form's defaults", () => {
   it("opens with a blank start; the field caps at the current minute", () => {
     expect(wallClockNow(NOW, "Europe/Berlin")).toBe("2026-09-15T14:00");
-    expect(emptyManualWorkoutDraft(NOW, "Asia/Seoul")).toMatchObject({
+    expect(emptyManualWorkoutDraft()).toMatchObject({
       sportType: "",
       start: "",
       hours: "",

src/lib/workouts/manual-entry.ts

@@ -118,10 +118,7 @@ export function wallClockNow(now: Date, timezone: string): string {
   return `${p.year}-${pad(p.month)}-${pad(p.day)}T${pad(p.hour)}:${pad(p.minute)}`;
 }
 
-export function emptyManualWorkoutDraft(
-  now: Date,
-  timezone: string,
-): ManualWorkoutDraft {
+export function emptyManualWorkoutDraft(): ManualWorkoutDraft {
   return {
     sportType: "",
     // Blank on purpose (#1085): a blank start means "it just ended", so the