Initial scaffold — NASBackup iOS app

Full project scaffold: XcodeGen project.yml, Core models/protocols/errors,
SMBService (kishikawakatsumi/SMBClient), SFTPService (Citadel 0.9.2),
PhotoLibraryService, LANMonitor, BackupEngine, BackgroundTaskManager,
all feature UIs (Login, Connect, Browse, Backup, History, Settings),
Shared components and theme. Builds clean with zero errors.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

NASBackup.xcodeproj/project.xcworkspace/contents.xcworkspacedata

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Workspace
+   version = "1.0">
+   <FileRef
+      location = "self:">
+   </FileRef>
+</Workspace>

NASBackup.xcodeproj/project.xcworkspace/xcshareddata/swiftpm/Package.resolved

@@ -0,0 +1,105 @@
+{
+  "originHash" : "6c3918d288e8e1069a99126e28b8b2c969cfcbb168003667ec624b08a6442e06",
+  "pins" : [
+    {
+      "identity" : "bigint",
+      "kind" : "remoteSourceControl",
+      "location" : "https://github.com/attaswift/BigInt.git",
+      "state" : {
+        "revision" : "e07e00fa1fd435143a2dcf8b7eec9a7710b2fdfe",
+        "version" : "5.7.0"
+      }
+    },
+    {
+      "identity" : "citadel",
+      "kind" : "remoteSourceControl",
+      "location" : "https://github.com/orlandos-nl/Citadel",
+      "state" : {
+        "revision" : "be1a5bc51b29d64e89a223a755159b8a8c678f47",
+        "version" : "0.9.2"
+      }
+    },
+    {
+      "identity" : "colorizeswift",
+      "kind" : "remoteSourceControl",
+      "location" : "https://github.com/mtynior/ColorizeSwift.git",
+      "state" : {
+        "revision" : "4e7daa138510b77a3cce9f6a31a116f8536347dd",
+        "version" : "1.7.0"
+      }
+    },
+    {
+      "identity" : "smbclient",
+      "kind" : "remoteSourceControl",
+      "location" : "https://github.com/kishikawakatsumi/SMBClient",
+      "state" : {
+        "revision" : "e636c2b2458930770932a36d311ec9d478575b90",
+        "version" : "0.3.1"
+      }
+    },
+    {
+      "identity" : "swift-atomics",
+      "kind" : "remoteSourceControl",
+      "location" : "https://github.com/apple/swift-atomics.git",
+      "state" : {
+        "revision" : "b601256eab081c0f92f059e12818ac1d4f178ff7",
+        "version" : "1.3.0"
+      }
+    },
+    {
+      "identity" : "swift-collections",
+      "kind" : "remoteSourceControl",
+      "location" : "https://github.com/apple/swift-collections.git",
+      "state" : {
+        "revision" : "03cc312c2c933ed87abace34044a5dff7a3117c1",
+        "version" : "1.5.0"
+      }
+    },
+    {
+      "identity" : "swift-crypto",
+      "kind" : "remoteSourceControl",
+      "location" : "https://github.com/apple/swift-crypto.git",
+      "state" : {
+        "revision" : "067254c79435de759aeef4a6a03e43d087d61312",
+        "version" : "2.0.5"
+      }
+    },
+    {
+      "identity" : "swift-log",
+      "kind" : "remoteSourceControl",
+      "location" : "https://github.com/apple/swift-log.git",
+      "state" : {
+        "revision" : "5073617dac96330a486245e4c0179cb0a6fd2256",
+        "version" : "1.12.0"
+      }
+    },
+    {
+      "identity" : "swift-nio",
+      "kind" : "remoteSourceControl",
+      "location" : "https://github.com/apple/swift-nio.git",
+      "state" : {
+        "revision" : "f71c8d2a5e74a2c6d11a0fbe324774b5d6084237",
+        "version" : "2.99.0"
+      }
+    },
+    {
+      "identity" : "swift-nio-ssh",
+      "kind" : "remoteSourceControl",
+      "location" : "https://github.com/Joannis/swift-nio-ssh.git",
+      "state" : {
+        "revision" : "791437a67f5394b13060314c778c0f63124803b1",
+        "version" : "0.3.5"
+      }
+    },
+    {
+      "identity" : "swift-system",
+      "kind" : "remoteSourceControl",
+      "location" : "https://github.com/apple/swift-system.git",
+      "state" : {
+        "revision" : "7c6ad0fc39d0763e0b699210e4124afd5041c5df",
+        "version" : "1.6.4"
+      }
+    }
+  ],
+  "version" : 3
+}