Add shopping quick-add feature

- Add Shopping tab to action modal (Ctrl+K)
- Add /partials/shopping-lists endpoint to fetch lists from Shopping board
- Store dropdown populated dynamically from Trello
- Items added via existing unified-add endpoint

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

1 files changed, 36 insertions, 0 deletions

diff --git a/internal/handlers/handlers.go b/internal/handlers/handlers.go
index 84a00fd..c44e771 100644
--- a/internal/handlers/handlers.go
+++ b/internal/handlers/handlers.go
@@ -1004,6 +1004,42 @@ func (h *Handler) HandleGetTaskDetail(w http.ResponseWriter, r *http.Request) {
 	w.Write([]byte(html))
 }
 
+// HandleGetShoppingLists returns the lists from the Shopping board for quick-add
+func (h *Handler) HandleGetShoppingLists(w http.ResponseWriter, r *http.Request) {
+	boards, err := h.store.GetBoards()
+	if err != nil {
+		http.Error(w, "Failed to get boards", http.StatusInternalServerError)
+		return
+	}
+
+	// Find the Shopping board
+	var shoppingBoardID string
+	for _, b := range boards {
+		if strings.EqualFold(b.Name, "Shopping") {
+			shoppingBoardID = b.ID
+			break
+		}
+	}
+
+	if shoppingBoardID == "" {
+		http.Error(w, "Shopping board not found", http.StatusNotFound)
+		return
+	}
+
+	// Get lists for the shopping board
+	lists, err := h.trelloClient.GetLists(r.Context(), shoppingBoardID)
+	if err != nil {
+		http.Error(w, "Failed to get lists", http.StatusInternalServerError)
+		log.Printf("Error fetching shopping lists: %v", err)
+		return
+	}
+
+	w.Header().Set("Content-Type", "text/html")
+	for _, list := range lists {
+		fmt.Fprintf(w, `<option value="%s">%s</option>`, list.ID, list.Name)
+	}
+}
+
 // HandleUpdateTask updates a task description
 func (h *Handler) HandleUpdateTask(w http.ResponseWriter, r *http.Request) {
 	ctx := r.Context()