fix(sheet): make "Mark done" mark it done

The button advanced one step round the untouched → doing → done cycle,
so pressing "Mark done" on a fresh event produced "doing it" and needed
a second press. Worse, the press after "done" cleared the status
outright rather than undoing anything.

Three states need three targets — that is the control directly above it.
This one is the commit, so it sets done and back. cycleStatus had no
other caller and is gone.

Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>

docs/PRD.md

@@ -87,6 +87,10 @@ completion the user already has.
 Three states, not two: untouched, doing it, done. Plus an optional effort estimate — quick, short,
 long, grind — and a free-text note.
 
+Three states need three targets. A single control cycling untouched → doing → done makes a button
+labelled "Mark done" produce "doing it", which is the control lying about itself; the detail sheet
+has an explicit control per state, and its primary action goes straight to done and back.
+
 Effort is not decoration. Combined with the time remaining it answers the question the calendar
 can't: *can I still finish this?* The same two days is comfortable for a quick event and hopeless
 for a grind, so an event carrying an effort estimate gets a "tight" or "running out of time" flag

src/client/App.tsx

@@ -118,7 +118,6 @@ export function App() {
     ignored.toggle(id);
     setLastIgnored(wasIgnored ? null : { id, title });
   };
-  const toggle = prog.cycleStatus;
 
   useEffect(() => {
     const ac = new AbortController();
@@ -424,7 +423,6 @@ export function App() {
           onEffort={prog.setEffort}
           onNote={prog.setNote}
           onIgnore={(id) => toggleIgnored(id, openRow.event.title)}
-          onToggle={toggle}
           onClose={() => setOpenId(null)}
         />
       )}

src/client/components/EventDetail.tsx

@@ -24,7 +24,6 @@ export function EventDetail({
   dailyDays,
   onDaily,
   onToggleDay,
-  onToggle,
   onIgnore,
   onStatus,
   onEffort,
@@ -47,7 +46,6 @@ export function EventDetail({
   dailyDays: string[];
   onDaily: (id: string, daily: boolean | undefined) => void;
   onToggleDay: (id: string, day: string) => void;
-  onToggle: (id: string) => void;
   onIgnore: (id: string) => void;
   onStatus: (id: string, s: Status | undefined) => void;
   onEffort: (id: string, e: Effort | undefined) => void;
@@ -198,10 +196,19 @@ export function EventDetail({
           </p>
         )}
 
+        {/* Says what it does and does what it says.
+
+            It used to advance one step round the untouched → doing → done
+            cycle, so a reader pressing a button labelled "Mark done" on a fresh
+            event got "doing it" and had to press it again — and the second
+            press from "done" silently wiped the status rather than undoing
+            anything. Three states need three targets, which is what the control
+            above is; this one is the commit, so it goes straight to done and
+            back. */}
         <div className="mt-5 flex items-center gap-2">
           <button
             type="button"
-            onClick={() => onToggle(event.id)}
+            onClick={() => onStatus(event.id, completed ? undefined : "done")}
             className={`flex-1 rounded-lg border px-4 py-2.5 text-sm font-medium transition-colors ${
               completed
                 ? "border-hairline text-muted hover:text-ink"

src/client/state/useProgress.ts

@@ -91,28 +91,11 @@ export function useProgress() {
     [patch],
   );
 
-  const cycleStatus = useCallback(
+  // There was a `cycleStatus` here that advanced untouched → doing → done →
-    (id: string) => {
+  // untouched from a single control. It is gone: the only caller was the sheet's
-      setProgress((prev) => {
+  // "Mark done" button, where one press on a fresh event produced "doing it" and
-        // Untouched → doing → done → untouched. One control, three states, in
+  // the press after "done" cleared the status instead of undoing it. Status is
-        // the order the reader actually moves through them.
+  // set outright now, by a control per state.
-        const current = prev[id]?.status;
-        const next: Status | undefined =
-          current === undefined ? "doing" : current === "doing" ? "done" : undefined;
-        const merged: Progress = {
-          ...prev[id],
-          status: next,
-          at: new Date().toISOString(),
-        };
-        if (isEmpty(merged)) {
-          const { [id]: _removed, ...rest } = prev;
-          return rest;
-        }
-        return { ...prev, [id]: merged };
-      });
-    },
-    [],
-  );
 
   const setDaily = useCallback(
     (id: string, daily: boolean | undefined) => patch(id, { daily }),
@@ -146,7 +129,6 @@ export function useProgress() {
     progress,
     patch,
     setStatus,
-    cycleStatus,
     setDaily,
     setEffort,
     setNote,