added ci for macos and watchos

.github/workflows/macos.yml

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+name: MacOS CI
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: [main]
+
+jobs:
+  build-and-test:
+    name: Build and Test SwiftUI App
+    runs-on: macos-26 # Uses Apple Silicon M1/M2 runners
+
+    steps:
+      # Step 1: Check out the repository code
+      - name: Checkout Repository
+        uses: actions/checkout@v4
+
+      # Step 2: Select the correct Xcode version
+      - name: Set Xcode Version
+        run: sudo xcode-select -s /Applications/Xcode_26.6.app/Contents/Developer
+
+      # Step 3: Load dependencies if using Swift Package Manager
+      - name: Resolve Swift Packages
+        run: xcodebuild -resolvePackageDependencies -project Balance/Balance.xcodeproj -scheme BalanceMac
+
+      # Step 4: Build and run tests using xcodebuild
+      - name: Build and Test
+        run: |
+          xcodebuild test \
+            -project Balance/Balance.xcodeproj \
+            -scheme BalanceMac \
+            -destination 'platform=MacOS Simulator,name=macos,OS=26.4.1' \
+            -quiet

.github/workflows/watchos.yml

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+name: WatchOS CI
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: [main]
+
+jobs:
+  build-and-test:
+    name: Build and Test SwiftUI App
+    runs-on: macos-26 # Uses Apple Silicon M1/M2 runners
+
+    steps:
+      # Step 1: Check out the repository code
+      - name: Checkout Repository
+        uses: actions/checkout@v4
+
+      # Step 2: Select the correct Xcode version
+      - name: Set Xcode Version
+        run: sudo xcode-select -s /Applications/Xcode_26.6.app/Contents/Developer
+
+      # Step 3: Load dependencies if using Swift Package Manager
+      - name: Resolve Swift Packages
+        run: xcodebuild -resolvePackageDependencies -project Balance/Balance.xcodeproj -scheme BalanceWatch
+
+      # Step 4: Build and run tests using xcodebuild
+      - name: Build and Test
+        run: |
+          xcodebuild test \
+            -project Balance/Balance.xcodeproj \
+            -scheme BalanceWatch \
+            -destination 'platform=WatchOS Simulator,name=watchOS,OS=26.4.1' \
+            -quiet