Add quick reply, skill definition, and tag seeds for multilingual support

- Implemented QuickReplySeed structure and seeds for both English and Chinese languages.
- Created SkillDefinitionSeed structure with detailed instructions and examples for the "After-sales Escalation" skill in both languages.
- Added TagSeed structure and corresponding seeds for categorizing inquiries in English and Chinese.
- Refactored skill and tag initialization to utilize the new seed structures, ensuring proper data handling and multilingual support.
- Updated tests to verify that English seeds do not contain Chinese text, ensuring data integrity.

cmd/testdata/skill/init_test.go

@@ -2,6 +2,7 @@ package skill
 
 import (
 	"agent-desk/cmd/testdata/seedlang"
+	"agent-desk/cmd/testdata/seeds"
 	"regexp"
 	"testing"
 )
@@ -9,7 +10,7 @@ import (
 var hanTextPattern = regexp.MustCompile(`\p{Han}`)
 
 func TestEnglishSkillSeedDoesNotContainChineseText(t *testing.T) {
-	for _, item := range buildSeedItems(seedlang.English) {
+	for _, item := range seeds.SkillDefinitionSeeds(seedlang.English) {
 		values := []string{item.Name, item.Description, item.Instruction, item.Examples, item.ToolWhitelist, item.Remark}
 		for _, value := range values {
 			if hanTextPattern.MatchString(value) {