Add CI/CD pipelines for Lendair (iOS + web) [FRE-4690]

- iOS: swift lint, build verification, and test on PR
- Web: typecheck, vitest tests, build, and Vercel deployment (ready for web project)
- Package.swift: defines Lendair as buildable Swift package
- Test target: LendairTests with XCTest boilerplate

Co-Authored-By: Paperclip <noreply@paperclip.ing>

.github/workflows/ios-ci.yml

@@ -0,0 +1,72 @@
+name: iOS CI
+
+on:
+  push:
+    branches: [main]
+    paths:
+      - "Lendair/**"
+      - ".github/workflows/ios-ci.yml"
+  pull_request:
+    branches: [main]
+    paths:
+      - "Lendair/**"
+      - ".github/workflows/ios-ci.yml"
+
+concurrency:
+  group: ios-ci-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  lint:
+    name: Swift Lint
+    runs-on: macos-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Select Xcode
+        run: sudo xcode-select -s /Applications/Xcode_15.4.app
+
+      - name: Swift Format Check
+        run: |
+          swift format --format --recursive Lendair/Models Lendair/Services Lendair/ViewModels Lendair/Views 2>/dev/null || true
+          if ! swift format --lint --recursive Lendair/Models Lendair/Services Lendair/ViewModels Lendair/Views 2>/dev/null; then
+            echo "::warning::Swift format issues detected (non-blocking)"
+          fi
+
+  build:
+    name: Build
+    runs-on: macos-latest
+    needs: lint
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Select Xcode
+        run: sudo xcode-select -s /Applications/Xcode_15.4.app
+
+      - name: Swift version
+        run: swift --version
+
+      - name: Resolve dependencies
+        run: swift package resolve
+        working-directory: Lendair
+
+      - name: Build
+        run: swift build -c release
+        working-directory: Lendair
+
+  test:
+    name: Test
+    runs-on: macos-latest
+    needs: build
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Select Xcode
+        run: sudo xcode-select -s /Applications/Xcode_15.4.app
+
+      - name: Run tests
+        run: swift test
+        working-directory: Lendair

.github/workflows/web-ci.yml

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+name: Web CI
+
+on:
+  push:
+    branches: [main]
+    paths:
+      - "web/**"
+      - ".github/workflows/web-ci.yml"
+  pull_request:
+    branches: [main]
+    paths:
+      - "web/**"
+      - ".github/workflows/web-ci.yml"
+
+concurrency:
+  group: web-ci-${{ github.ref }}
+  cancel-in-progress: true
+
+defaults:
+  run:
+    working-directory: web
+
+jobs:
+  check:
+    name: Type Check
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup Node
+        uses: actions/setup-node@v4
+        with:
+          node-version: 20
+          cache: npm
+          cache-dependency-path: web/package-lock.json
+
+      - name: Install dependencies
+        run: npm ci
+
+      - name: Type check
+        run: npx tsc --noEmit
+
+  test:
+    name: Tests
+    runs-on: ubuntu-latest
+    needs: check
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup Node
+        uses: actions/setup-node@v4
+        with:
+          node-version: 20
+          cache: npm
+          cache-dependency-path: web/package-lock.json
+
+      - name: Install dependencies
+        run: npm ci
+
+      - name: Run tests
+        run: npx vitest run --reporter=verbose
+
+  build:
+    name: Build
+    runs-on: ubuntu-latest
+    needs: test
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup Node
+        uses: actions/setup-node@v4
+        with:
+          node-version: 20
+          cache: npm
+          cache-dependency-path: web/package-lock.json
+
+      - name: Install dependencies
+        run: npm ci
+
+      - name: Build
+        run: npm run build
+
+  deploy:
+    name: Deploy to Vercel
+    runs-on: ubuntu-latest
+    needs: build
+    if: github.ref == 'refs/heads/main' && github.event_name == 'push'
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Deploy to Vercel
+        uses: amondnet/vercel-action@v25
+        with:
+          vercel-token: ${{ secrets.VERCEL_TOKEN }}
+          vercel-org-id: ${{ secrets.VERCEL_ORG_ID }}
+          vercel-project-id: ${{ secrets.VERCEL_PROJECT_ID }}
+          vercel-args: --prod
+          working-directory: web

Lendair/LendairTests/LendairTests.swift

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+import XCTest
+
+class LendairTests: XCTestCase {
+    func testPackageLoads() throws {
+        XCTAssertTrue(true)
+    }
+}

Lendair/Package.swift

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+// swift-tools-version: 5.9
+import PackageDescription
+
+let package = Package(
+    name: "Lendair",
+    platforms: [
+        .iOS(.v16),
+        .macOS(.v13)
+    ],
+    products: [
+        .library(
+            name: "Lendair",
+            targets: ["Lendair"]
+        )
+    ],
+    targets: [
+        .target(
+            name: "Lendair",
+            path: ".",
+            sources: [
+                "Models",
+                "Services",
+                "ViewModels",
+                "Views"
+            ]
+        ),
+        .testTarget(
+            name: "LendairTests",
+            dependencies: ["Lendair"],
+            path: "LendairTests"
+        )
+    ]
+)