fix(widget): autofocus quick-add title field, redesign as blank edit form

Quick Add's text field never requested focus or triggered the keyboard,
so tapping it opened a sheet with no visible way to type. Added a
FocusRequester + delayed requestFocus()/keyboard show (ModalBottomSheet
needs a beat to finish its enter animation before focus requests land).

While in there, rebuilt the quick-add sheet to match the task edit
popup instead of being a bare title field: due date, recurrence,
project, and label chips, plus a description field, reusing the same
dialogs the edit popup already uses. POST /api/widget/add now returns
the created task's id so the client can chain the same
project/labels/recurrence/due-date setter calls edit already relies on.

1 files changed, 9 insertions, 2 deletions

diff --git a/internal/handlers/widget.go b/internal/handlers/widget.go
index 5880314..a2a0837 100644
--- a/internal/handlers/widget.go
+++ b/internal/handlers/widget.go
@@ -430,7 +430,13 @@ func (h *Handler) HandleWidgetComplete(w http.ResponseWriter, r *http.Request) {
 	w.WriteHeader(http.StatusOK)
 }
 
-// HandleWidgetAdd creates a new undated native task from the widget's quick-add sheet.
+type widgetAddResponse struct {
+	ID string `json:"id"`
+}
+
+// HandleWidgetAdd creates a new undated native task from the widget's quick-add
+// sheet and returns its id, so the client can follow up with the same
+// project/labels/recurrence/due-date setter calls the edit popup uses.
 func (h *Handler) HandleWidgetAdd(w http.ResponseWriter, r *http.Request) {
 	var req widgetAddRequest
 	if err := json.NewDecoder(r.Body).Decode(&req); err != nil {
@@ -454,7 +460,8 @@ func (h *Handler) HandleWidgetAdd(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
-	w.WriteHeader(http.StatusOK)
+	w.Header().Set("Content-Type", "application/json")
+	_ = json.NewEncoder(w).Encode(widgetAddResponse{ID: task.ID})
 }
 
 type recurrenceResponse struct {