Add native SwiftUI iOS client

ios/README.md

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+# TimesheetApp iOS client
+
+## Prerequisites
+
+- macOS with Xcode 26.6 or later
+- XcodeGen (`/opt/homebrew/bin/xcodegen`)
+- An iOS 17 or later simulator
+
+The app uses only Foundation, SwiftUI, and system frameworks. XcodeGen is the
+source of truth for the Xcode project:
+
+```sh
+cd ios
+xcodegen generate
+```
+
+## Run the backend
+
+From the repository root:
+
+```sh
+cd backend
+npm install
+npm run dev
+```
+
+The development backend listens on port 3001. The simulator can reach a
+backend running on the Mac at `http://localhost:3001`.
+
+## Point the app at another host
+
+On the login screen, expand **Advanced** and edit **Server URL**. The value is
+stored in the app's settings for the next launch. For a physical device, use
+the Mac's LAN IP and ensure the backend is bound to an address reachable by the
+device.
+
+## Build and test
+
+```sh
+xcodebuild -project TimesheetApp.xcodeproj \
+  -scheme TimesheetApp \
+  -destination 'platform=iOS Simulator,name=iPhone 17 Pro' build
+
+xcodebuild -project TimesheetApp.xcodeproj \
+  -scheme TimesheetApp \
+  -destination 'platform=iOS Simulator,name=iPhone 17 Pro' test
+```

ios/TimesheetApp.xcodeproj/xcshareddata/xcschemes/TimesheetApp.xcscheme

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+<?xml version="1.0" encoding="UTF-8"?>
+<Scheme
+   LastUpgradeVersion = "1430"
+   version = "1.7">
+   <BuildAction
+      parallelizeBuildables = "YES"
+      buildImplicitDependencies = "YES"
+      runPostActionsOnFailure = "NO">
+      <BuildActionEntries>
+         <BuildActionEntry
+            buildForTesting = "YES"
+            buildForRunning = "YES"
+            buildForProfiling = "YES"
+            buildForArchiving = "YES"
+            buildForAnalyzing = "YES">
+            <BuildableReference
+               BuildableIdentifier = "primary"
+               BlueprintIdentifier = "431A7BD4ABBF7F1DC4A8251B"
+               BuildableName = "TimesheetApp.app"
+               BlueprintName = "TimesheetApp"
+               ReferencedContainer = "container:TimesheetApp.xcodeproj">
+            </BuildableReference>
+         </BuildActionEntry>
+      </BuildActionEntries>
+   </BuildAction>
+   <TestAction
+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      shouldUseLaunchSchemeArgsEnv = "YES"
+      onlyGenerateCoverageForSpecifiedTargets = "NO">
+      <MacroExpansion>
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "431A7BD4ABBF7F1DC4A8251B"
+            BuildableName = "TimesheetApp.app"
+            BlueprintName = "TimesheetApp"
+            ReferencedContainer = "container:TimesheetApp.xcodeproj">
+         </BuildableReference>
+      </MacroExpansion>
+      <Testables>
+         <TestableReference
+            skipped = "NO"
+            parallelizable = "NO">
+            <BuildableReference
+               BuildableIdentifier = "primary"
+               BlueprintIdentifier = "69C2FB1DFE7D6351B1C346F1"
+               BuildableName = "TimesheetAppTests.xctest"
+               BlueprintName = "TimesheetAppTests"
+               ReferencedContainer = "container:TimesheetApp.xcodeproj">
+            </BuildableReference>
+         </TestableReference>
+      </Testables>
+      <CommandLineArguments>
+      </CommandLineArguments>
+   </TestAction>
+   <LaunchAction
+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      launchStyle = "0"
+      useCustomWorkingDirectory = "NO"
+      ignoresPersistentStateOnLaunch = "NO"
+      debugDocumentVersioning = "YES"
+      debugServiceExtension = "internal"
+      allowLocationSimulation = "YES">
+      <BuildableProductRunnable
+         runnableDebuggingMode = "0">
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "431A7BD4ABBF7F1DC4A8251B"
+            BuildableName = "TimesheetApp.app"
+            BlueprintName = "TimesheetApp"
+            ReferencedContainer = "container:TimesheetApp.xcodeproj">
+         </BuildableReference>
+      </BuildableProductRunnable>
+      <CommandLineArguments>
+      </CommandLineArguments>
+   </LaunchAction>
+   <ProfileAction
+      buildConfiguration = "Release"
+      shouldUseLaunchSchemeArgsEnv = "YES"
+      savedToolIdentifier = ""
+      useCustomWorkingDirectory = "NO"
+      debugDocumentVersioning = "YES">
+      <BuildableProductRunnable
+         runnableDebuggingMode = "0">
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "431A7BD4ABBF7F1DC4A8251B"
+            BuildableName = "TimesheetApp.app"
+            BlueprintName = "TimesheetApp"
+            ReferencedContainer = "container:TimesheetApp.xcodeproj">
+         </BuildableReference>
+      </BuildableProductRunnable>
+      <CommandLineArguments>
+      </CommandLineArguments>
+   </ProfileAction>
+   <AnalyzeAction
+      buildConfiguration = "Debug">
+   </AnalyzeAction>
+   <ArchiveAction
+      buildConfiguration = "Release"
+      revealArchiveInOrganizer = "YES">
+   </ArchiveAction>
+</Scheme>

ios/TimesheetApp/Assets.xcassets/AppAccent.colorset/Contents.json

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+{
+  "colors" : [
+    {
+      "idiom" : "universal",
+      "color" : {
+        "color-space" : "srgb",
+        "components" : {
+          "alpha" : "1.000",
+          "blue" : "0.850",
+          "green" : "0.350",
+          "red" : "0.180"
+        }
+      }
+    }
+  ],
+  "info" : {
+    "author" : "xcode",
+    "version" : 1
+  }
+}

ios/TimesheetApp/Assets.xcassets/Contents.json

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+{
+  "info" : {
+    "author" : "xcode",
+    "version" : 1
+  }
+}

ios/TimesheetApp/Info.plist

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+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>CFBundleDisplayName</key>
+	<string>Timesheet</string>
+	<key>CFBundleIdentifier</key>
+	<string>ai.cognition.workshops.timesheet</string>
+	<key>CFBundleName</key>
+	<string>TimesheetApp</string>
+	<key>CFBundleExecutable</key>
+	<string>$(EXECUTABLE_NAME)</string>
+	<key>CFBundlePackageType</key>
+	<string>APPL</string>
+	<key>CFBundleShortVersionString</key>
+	<string>1.0</string>
+	<key>CFBundleVersion</key>
+	<string>1</string>
+	<key>UILaunchScreen</key>
+	<dict/>
+	<key>UISupportedInterfaceOrientations</key>
+	<array>
+		<string>UIInterfaceOrientationPortrait</string>
+		<string>UIInterfaceOrientationLandscapeLeft</string>
+		<string>UIInterfaceOrientationLandscapeRight</string>
+	</array>
+	<key>NSAppTransportSecurity</key>
+	<dict>
+		<key>NSAllowsLocalNetworking</key>
+		<true/>
+		<key>NSExceptionDomains</key>
+		<dict>
+			<key>localhost</key>
+			<dict>
+				<key>NSExceptionAllowsInsecureHTTPLoads</key>
+				<true/>
+			</dict>
+		</dict>
+	</dict>
+</dict>
+</plist>