Add lead workflows, PDF signing, AR projects and photo gallery integration

GasTankAR/Views/Leads/Overview/LeadResultsSection.swift

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+import SwiftUI
+
+struct LeadResultsSection: View {
+    let leads: [Lead]
+    let columns: [GridItem]
+    @Binding var selection: LeadOverviewSelection
+    let cardMotion: Namespace.ID
+    let isBusy: Bool
+    let onOpen: (Lead) -> Void
+    let onBookmark: (Lead) -> Void
+
+    var body: some View {
+        VStack(alignment: .leading, spacing: 14) {
+            ViewThatFits(in: .horizontal) {
+                HStack {
+                    heading
+                    Spacer(minLength: 20)
+                    picker.frame(width: 300)
+                }
+                VStack(alignment: .leading, spacing: 12) {
+                    heading
+                    picker
+                }
+            }
+            LeadCardGrid(columnCount: columns.count) {
+                ForEach(leads) { lead in
+                    LeadCardView(lead: lead, isBusy: isBusy,
+                                 onOpen: { onOpen(lead) }, onBookmark: { onBookmark(lead) })
+                        .matchedGeometryEffect(id: lead.isBookmarked ? "regular-\(lead.id)" : "flight-\(lead.id)",
+                                               in: cardMotion)
+                }
+            }
+        }
+    }
+
+    private var heading: some View {
+        HStack(alignment: .firstTextBaseline, spacing: 8) {
+            Text("Alle Interessenten").font(.title2.bold())
+            Text(leads.count, format: .number).foregroundStyle(.secondary)
+        }
+    }
+
+    private var picker: some View {
+        Picker("Sortierung und Filter", selection: $selection) {
+            ForEach(LeadOverviewSelection.allCases) { option in
+                Text(option.title).tag(option)
+            }
+        }
+        .pickerStyle(.segmented)
+    }
+}