fix some issues - including add ledger page and fix reoccuring completions

timezone.ts

@@ -53,13 +53,17 @@ export function addDaysStr(dateStr: string, days: number): string {
 export function weekStart(payday: number, tz: string): string {
   const today = todayInTz(tz);
   const wd = weekdayInTz(new Date(), tz);
-  const back = ((wd - payday) % 7 + 7) % 7;
+  const back = (((wd - payday) % 7) + 7) % 7;
   return addDaysStr(today, -back);
 }
 
 // The first configured-payday day strictly after dateStr (used to gate
 // payday-settled bonus rewards). Weekly: periodEnd (weekStart+6) → next payday.
-export function nextPaydayAfter(dateStr: string, payday: number, tz: string): string {
+export function nextPaydayAfter(
+  dateStr: string,
+  payday: number,
+  tz: string,
+): string {
   let d = addDaysStr(dateStr, 1);
   while (weekdayInTz(new Date(d + "T12:00:00Z"), tz) !== payday) {
     d = addDaysStr(d, 1);
@@ -82,7 +86,11 @@ function monthEndStr(month?: string): string {
   return `${month}-${String(lastDay).padStart(2, "0")}`;
 }
 
-export function periodStart(period: string, payday: number, tz: string): string {
+export function periodStart(
+  period: string,
+  payday: number,
+  tz: string,
+): string {
   if (period === "daily") return todayInTz(tz);
   if (period === "weekly") return weekStart(payday, tz);
   if (period === "monthly") return monthStartStr();
@@ -96,7 +104,42 @@ export function periodEnd(period: string, start: string): string {
   return start;
 }
 
-export function wallClockToUtc(dateStr: string, time: string, tz: string): number {
+// The completion window a chore of a given frequency is "done for" in the
+// current period. Weekly chores are done once per week ([weekStart, +7)),
+// daily chores once per day ([today, +1)). Half-open [from, to).
+export function periodWindow(
+  frequency: string,
+  payday: number,
+  tz: string,
+): { from: string; to: string } {
+  if (frequency === "weekly") {
+    const from = weekStart(payday, tz);
+    return { from, to: addDaysStr(from, 7) };
+  }
+  const from = todayInTz(tz);
+  return { from, to: addDaysStr(from, 1) };
+}
+
+// True if any completion date falls within the current period window for the
+// chore's frequency. Dates may be YYYY-MM-DD or ISO (time portion ignored).
+export function isCompleteForPeriod(
+  frequency: string,
+  payday: number,
+  tz: string,
+  dates: string[],
+): boolean {
+  const { from, to } = periodWindow(frequency, payday, tz);
+  return dates.some((d) => {
+    const day = (d || "").slice(0, 10);
+    return day >= from && day < to;
+  });
+}
+
+export function wallClockToUtc(
+  dateStr: string,
+  time: string,
+  tz: string,
+): number {
   const [y, m, d] = dateStr.split("-").map(Number);
   const [h, min] = time.split(":").map(Number);
   let epoch = Date.UTC(y, m - 1, d, h, min);