feat(kimi): unwrap redirect urls and merge search panel into citations

Pull Kimi's "搜索网页" panel results into the regular citation source
flow, drop the dedicated-citation-panel branch on the server side, and
unwrap Kimi redirect URLs so citation source items resolve to the real
target host.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

server/internal/tenant/app/monitoring_callback_service.go

@@ -2680,12 +2680,7 @@ func buildMonitoringCitationSourceInputs(platformID string, req MonitoringTaskRe
 }
 
 func monitoringPlatformUsesDedicatedCitationPanel(platformID string) bool {
-	switch normalizeMonitoringPlatformID(platformID) {
-	case "kimi":
-		return true
-	default:
-		return false
-	}
+	return false
 }
 
 func monitoringPlatformResolvesContentCitations(platformID string) bool {

server/internal/tenant/app/monitoring_callback_service_test.go

@@ -283,7 +283,7 @@ func TestMonitoringHeartbeatSnapshotMetrics(t *testing.T) {
 	}
 }
 
-func TestBuildMonitoringRawPayloadKimiExcludesSearchResultsFromCitationInputs(t *testing.T) {
+func TestBuildMonitoringRawPayloadKimiIncludesSearchResultsInCitationInputs(t *testing.T) {
 	citationTitle := "真实引用文章"
 	searchTitle := "搜索网页结果"
 
@@ -304,13 +304,18 @@ func TestBuildMonitoringRawPayloadKimiExcludesSearchResultsFromCitationInputs(t
 	}
 
 	rawPayload, sourceInputs := buildMonitoringRawPayload("kimi", req)
-	if len(sourceInputs) != 1 {
-		t.Fatalf("buildMonitoringRawPayload() sourceInputs len = %d, want 1", len(sourceInputs))
+	if len(sourceInputs) != 2 {
+		t.Fatalf("buildMonitoringRawPayload() sourceInputs len = %d, want 2", len(sourceInputs))
 	}
+	seen := make(map[string]bool)
 	for _, item := range sourceInputs {
-		if item.URL != "https://example.com/citation" {
-			t.Fatalf("buildMonitoringRawPayload() source url = %q, want citation url", item.URL)
-		}
+		seen[item.URL] = true
+	}
+	if !seen["https://example.com/citation"] {
+		t.Fatalf("buildMonitoringRawPayload() missing citation url in source inputs: %#v", sourceInputs)
+	}
+	if !seen["https://example.com/search"] {
+		t.Fatalf("buildMonitoringRawPayload() missing search url in source inputs: %#v", sourceInputs)
 	}
 
 	var payload map[string]interface{}