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

GasTankAR/Domain/Leads/LeadQuery.swift

@@ -0,0 +1,23 @@
+import Foundation
+
+struct LeadQuery: Equatable, Sendable {
+    var searchText = ""
+    var sort: LeadSort = .newest
+    var filter: LeadFilter = .all
+
+    var normalized: LeadQuery {
+        var query = self
+        query.searchText = searchText.trimmingCharacters(in: .whitespacesAndNewlines)
+        return query
+    }
+}
+
+enum LeadSort: Sendable {
+    case newest
+    case nameAscending
+}
+
+enum LeadFilter: Sendable {
+    case all
+    case unsignedContracts
+}