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/seeds/channel.go

@@ -0,0 +1,49 @@
+package seeds
+
+import (
+	"agent-desk/cmd/testdata/seedlang"
+	"agent-desk/internal/pkg/dto"
+	"agent-desk/internal/pkg/enums"
+
+	"github.com/mlogclub/simple/common/jsons"
+)
+
+type ChannelSeed struct {
+	Name        string
+	ChannelType string
+	ConfigJSON  string
+	Remark      string
+}
+
+func ChannelSeeds(lang seedlang.Language) []ChannelSeed {
+	if lang == seedlang.English {
+		return []ChannelSeed{
+			{
+				Name:        "Website Support",
+				ChannelType: enums.ChannelTypeWeb,
+				ConfigJSON: jsons.ToJsonStr(dto.WebChannelConfig{
+					Title:      "Online Support",
+					Subtitle:   "Powered by AgentDesk",
+					ThemeColor: "#2563eb",
+					Position:   "right",
+					Width:      "780px",
+				}),
+				Remark: "Local testdata seed",
+			},
+		}
+	}
+	return []ChannelSeed{
+		{
+			Name:        "官网客服",
+			ChannelType: enums.ChannelTypeWeb,
+			ConfigJSON: jsons.ToJsonStr(dto.WebChannelConfig{
+				Title:      "在线客服",
+				Subtitle:   "AgentDesk 提供技术支持",
+				ThemeColor: "#2563eb",
+				Position:   "right",
+				Width:      "780px",
+			}),
+			Remark: "Local testdata seed",
+		},
+	}
+}