feat: Enhance Kol Generation Service with web search and knowledge group support

- Added `EnableWebSearch` and `KnowledgeGroupIDs` fields to `KolGenerationSubmitRequest`.
- Updated `Submit` method in `KolGenerationService` to handle new request fields.
- Integrated web search and knowledge group validation based on card configuration.
- Introduced caching mechanisms in `KolPackageService`, `KolPromptService`, and `KolSubscriptionAdminService` to improve performance.
- Implemented knowledge context resolution in `KolGenerationWorker` to enrich prompts with relevant knowledge snippets.
- Added utility functions for handling card configuration in both backend and frontend.
- Created tests for knowledge extraction and rendering to ensure accuracy and reliability.

server/internal/tenant/app/knowledge_prompt_test.go

@@ -0,0 +1,103 @@
+package app
+
+import (
+	"strings"
+	"testing"
+)
+
+func TestExtractKnowledgePreciseFactsKeepsAddressAndContactLines(t *testing.T) {
+	facts := extractKnowledgePreciseFacts(`
+# 合肥门店
+
+地址：合肥市蜀山区望江西路 123 号 A 座 8 层
+电话：0551-12345678
+官网：https://example.com/store
+普通介绍段落
+`)
+
+	for _, expected := range []string{
+		"地址：合肥市蜀山区望江西路 123 号 A 座 8 层",
+		"电话：0551-12345678",
+		"官网：https://example.com/store",
+	} {
+		if !containsExactString(facts, expected) {
+			t.Fatalf("extractKnowledgePreciseFacts() = %#v, want %q", facts, expected)
+		}
+	}
+}
+
+func TestRenderPromptSectionIncludesPreciseFactsAndSourceURI(t *testing.T) {
+	sourceURI := "https://example.com/store"
+	output := (&KnowledgeService{}).RenderPromptSection(&KnowledgeContext{
+		Snippets: []KnowledgeSnippet{
+			{
+				GroupName:    "门店信息",
+				ItemName:     "合肥门店",
+				SourceURI:    &sourceURI,
+				Text:         "这里是一段门店介绍。",
+				PreciseFacts: []string{"地址：合肥市蜀山区望江西路 123 号", "电话：0551-12345678"},
+			},
+		},
+	})
+
+	for _, expected := range []string{
+		"以下为必须严格按原文保留的高精度事实",
+		"- 门店信息 / 合肥门店：地址：合肥市蜀山区望江西路 123 号",
+		"来源链接: https://example.com/store",
+		"这里是一段门店介绍。",
+	} {
+		if !strings.Contains(output, expected) {
+			t.Fatalf("RenderPromptSection() = %q, want %q", output, expected)
+		}
+	}
+}
+
+func TestRenderPromptSectionSupportsPreciseFactsWithoutSnippets(t *testing.T) {
+	output := (&KnowledgeService{}).RenderPromptSection(&KnowledgeContext{
+		PreciseFacts: []string{
+			"公司资料 / 合肥门店：地址：合肥市蜀山区望江西路 123 号",
+			"公司资料 / 合肥门店：主营业务：全屋定制；橱柜定制",
+		},
+	})
+
+	for _, expected := range []string{
+		"以下为必须严格按原文保留的高精度事实",
+		"- 公司资料 / 合肥门店：地址：合肥市蜀山区望江西路 123 号",
+		"- 公司资料 / 合肥门店：主营业务：全屋定制；橱柜定制",
+	} {
+		if !strings.Contains(output, expected) {
+			t.Fatalf("RenderPromptSection() = %q, want %q", output, expected)
+		}
+	}
+}
+
+func TestExtractKnowledgePreciseFactsKeepsBusinessScopeSection(t *testing.T) {
+	facts := extractKnowledgePreciseFacts(`
+# 公司介绍
+
+主营业务
+- 全屋定制
+- 橱柜定制
+- 木门与护墙系统
+
+地址：合肥市蜀山区望江西路 123 号
+`)
+
+	for _, expected := range []string{
+		"主营业务：全屋定制；橱柜定制；木门与护墙系统",
+		"地址：合肥市蜀山区望江西路 123 号",
+	} {
+		if !containsExactString(facts, expected) {
+			t.Fatalf("extractKnowledgePreciseFacts() = %#v, want %q", facts, expected)
+		}
+	}
+}
+
+func containsExactString(items []string, target string) bool {
+	for _, item := range items {
+		if item == target {
+			return true
+		}
+	}
+	return false
+}