Fix lua file evaluation in plural cd services lua

Pretty sure it's not handling relative directories correctly here, this should fix

Author: michaeljguarino

cmd/command/cd/cd_services_lua.go

@@ -4,6 +4,7 @@ import (
 	"fmt"
 	iofs "io/fs"
 	"os"
+	"path"
 	"path/filepath"
 	"sort"
 	"strings"
@@ -141,7 +142,7 @@ func luaFolder(folder string) (string, error) {
 
 	luaFileContents := make([]string, 0)
 	for _, file := range luaFiles {
-		luaContents, err := os.ReadFile(file)
+		luaContents, err := os.ReadFile(path.Join(folder, file))
 		if err != nil {
 			return "", fmt.Errorf("failed to read lua file %s: %w", file, err)
 		}

cmd/command/cd/cd_services_lua_test.go

@@ -111,6 +111,17 @@ values["greeting"] = greet("world")
 	assert.Equal(t, "hello world", values["greeting"])
 }
 
+func TestLuaFolder_WithExistingLuaFixtureFolder(t *testing.T) {
+	luaDir := filepath.Join("..", "..", "..", "test", "lua")
+
+	_, err := os.Stat(luaDir)
+	require.NoError(t, err, "expected fixture lua directory to exist")
+
+	content, err := luaFolder(luaDir)
+	require.NoError(t, err)
+	assert.NotEmpty(t, content)
+}
+
 // Binding tests – each test mirrors what the real luaBindings helpers produce,
 // then asserts that Lua can read those values as expected.