Add card move command

README.md

@@ -210,6 +210,10 @@ fizzy card delete 42
 fizzy card close 42
 fizzy card reopen 42
 
+# Move to a different board
+fizzy card move 42 --to BOARD_ID
+fizzy card move 42 -t BOARD_ID
+
 # Move to "Not Now"
 fizzy card postpone 42
 

internal/commands/card.go

@@ -442,6 +442,51 @@ var cardPostponeCmd = &cobra.Command{
 	},
 }
 
+// Card move flags
+var cardMoveBoard string
+
+var cardMoveCmd = &cobra.Command{
+	Use:   "move CARD_NUMBER",
+	Short: "Move card to a different board",
+	Long:  "Moves a card to a different board.",
+	Args:  cobra.ExactArgs(1),
+	Run: func(cmd *cobra.Command, args []string) {
+		if err := requireAuthAndAccount(); err != nil {
+			exitWithError(err)
+		}
+
+		if cardMoveBoard == "" {
+			exitWithError(newRequiredFlagError("to"))
+		}
+
+		body := map[string]interface{}{
+			"board_id": cardMoveBoard,
+		}
+
+		client := getClient()
+		_, err := client.Patch("/cards/"+args[0]+"/board.json", body)
+		if err != nil {
+			exitWithError(err)
+		}
+
+		// Fetch the updated card to show confirmation with title
+		resp, err := client.Get("/cards/" + args[0] + ".json")
+		if err != nil {
+			exitWithError(err)
+		}
+
+		// Build summary with card title if available
+		summary := fmt.Sprintf("Card #%s moved to board %s", args[0], cardMoveBoard)
+		if card, ok := resp.Data.(map[string]interface{}); ok {
+			if title, ok := card["title"].(string); ok {
+				summary = fmt.Sprintf("Card #%s \"%s\" moved to board %s", args[0], title, cardMoveBoard)
+			}
+		}
+
+		printSuccessWithSummary(resp.Data, summary)
+	},
+}
+
 // Card column flags
 var cardColumnColumn string
 
@@ -782,6 +827,10 @@ func init() {
 	cardCmd.AddCommand(cardReopenCmd)
 	cardCmd.AddCommand(cardPostponeCmd)
 
+	// Move to different board
+	cardMoveCmd.Flags().StringVarP(&cardMoveBoard, "to", "t", "", "Target board ID (required)")
+	cardCmd.AddCommand(cardMoveCmd)
+
 	// Column
 	cardColumnCmd.Flags().StringVar(&cardColumnColumn, "column", "", "Column ID (required)")
 	cardCmd.AddCommand(cardColumnCmd)

internal/commands/card_test.go

@@ -1184,3 +1184,87 @@ func TestCardUngolden(t *testing.T) {
 		}
 	})
 }
+
+func TestCardMove(t *testing.T) {
+	t.Run("moves card to different board", func(t *testing.T) {
+		mock := NewMockClient()
+		mock.PatchResponse = &client.APIResponse{
+			StatusCode: 204,
+			Data:       nil,
+		}
+		mock.GetResponse = &client.APIResponse{
+			StatusCode: 200,
+			Data: map[string]interface{}{
+				"id":       "abc",
+				"number":   float64(42),
+				"title":    "Test Card",
+				"board_id": "board-456",
+			},
+		}
+
+		result := SetTestMode(mock)
+		SetTestConfig("token", "account", "https://api.example.com")
+		defer ResetTestMode()
+
+		cardMoveBoard = "board-456"
+		RunTestCommand(func() {
+			cardMoveCmd.Run(cardMoveCmd, []string{"42"})
+		})
+		cardMoveBoard = ""
+
+		if result.ExitCode != 0 {
+			t.Errorf("expected exit code 0, got %d", result.ExitCode)
+		}
+		if len(mock.PatchCalls) != 1 {
+			t.Errorf("expected 1 patch call, got %d", len(mock.PatchCalls))
+		}
+		if mock.PatchCalls[0].Path != "/cards/42/board.json" {
+			t.Errorf("expected path '/cards/42/board.json', got '%s'", mock.PatchCalls[0].Path)
+		}
+
+		body := mock.PatchCalls[0].Body.(map[string]interface{})
+		if body["board_id"] != "board-456" {
+			t.Errorf("expected board_id 'board-456', got '%v'", body["board_id"])
+		}
+
+		// Verify it fetched the card after moving
+		if len(mock.GetCalls) != 1 || mock.GetCalls[0].Path != "/cards/42.json" {
+			t.Errorf("expected get call to '/cards/42.json', got %+v", mock.GetCalls)
+		}
+	})
+
+	t.Run("requires --to flag", func(t *testing.T) {
+		mock := NewMockClient()
+		result := SetTestMode(mock)
+		SetTestConfig("token", "account", "https://api.example.com")
+		defer ResetTestMode()
+
+		cardMoveBoard = ""
+		RunTestCommand(func() {
+			cardMoveCmd.Run(cardMoveCmd, []string{"42"})
+		})
+
+		if result.ExitCode != errors.ExitInvalidArgs {
+			t.Errorf("expected exit code %d, got %d", errors.ExitInvalidArgs, result.ExitCode)
+		}
+	})
+
+	t.Run("handles not found error", func(t *testing.T) {
+		mock := NewMockClient()
+		mock.PatchError = errors.NewNotFoundError("Card not found")
+
+		result := SetTestMode(mock)
+		SetTestConfig("token", "account", "https://api.example.com")
+		defer ResetTestMode()
+
+		cardMoveBoard = "board-456"
+		RunTestCommand(func() {
+			cardMoveCmd.Run(cardMoveCmd, []string{"999"})
+		})
+		cardMoveBoard = ""
+
+		if result.ExitCode != errors.ExitNotFound {
+			t.Errorf("expected exit code %d, got %d", errors.ExitNotFound, result.ExitCode)
+		}
+	})
+}