feat(inbounds): apply remark template to Export all inbound links

Export-all now renders links through the subscription engine via a new GET /panel/api/inbounds/allLinks endpoint, so the configured remark template (name-only display part) is applied per client -- matching the client info/QR pages. Previously it generated links client-side with a hardcoded inbound-email remark.

Host-aware: managed Host endpoints win over the plain link, so HOST and per-host variants render; duplicate client JSON entries are deduped by email and the list is scoped to the logged-in user.

internal/sub/export_all_links_test.go

@@ -0,0 +1,43 @@
+package sub
+
+import (
+	"strings"
+	"testing"
+
+	"github.com/mhsanaei/3x-ui/v3/internal/database"
+	"github.com/mhsanaei/3x-ui/v3/internal/database/model"
+)
+
+// inboundLinks (the "Export all inbound links" path) must render the remark
+// template's whole Client token group per client, name-only — the same engine
+// the client/QR pages use.
+func TestInboundLinks_RemarkTemplateClientTokens(t *testing.T) {
+	seedSubDB(t)
+	db := database.GetDB()
+	settings := `{"clients":[{"id":"11111111-2222-4333-8444-000000000001","email":"john@e","subId":"subABC","comment":"vip","tgId":777,"enable":true}],"decryption":"none"}`
+	ib := &model.Inbound{
+		UserId: 1, Tag: "t", Enable: true, Listen: "203.0.113.5", Port: 4431,
+		Protocol: model.VLESS, Remark: "Germany", Settings: settings,
+		StreamSettings: `{"network":"ws","security":"tls","wsSettings":{"path":"/","host":""},"tlsSettings":{"serverName":"sni"}}`,
+	}
+	if err := db.Create(ib).Error; err != nil {
+		t.Fatalf("seed inbound: %v", err)
+	}
+
+	svc := NewSubService("{{INBOUND}}-{{EMAIL}}-{{COMMENT}}-{{SUB_ID}}-{{TELEGRAM_ID}}-{{SHORT_ID}}|📊{{TRAFFIC_LEFT}}|⏳{{DAYS_LEFT}}D")
+	svc.PrepareForRequest("req.example.com")
+	links := svc.inboundLinks(ib)
+
+	if len(links) != 1 {
+		t.Fatalf("links = %d, want 1: %v", len(links), links)
+	}
+	frag := links[0]
+	for _, want := range []string{"Germany-john", "vip", "subABC", "777", "11111111"} {
+		if !strings.Contains(frag, want) {
+			t.Fatalf("remark missing client token %q: %s", want, frag)
+		}
+	}
+	if strings.Contains(frag, "GB") || strings.ContainsRune(frag, '⏳') {
+		t.Fatalf("display mode must drop the traffic/expiry segments: %s", frag)
+	}
+}