Simplify Android and iOS build workflows in CI

Removed matrix strategies for Android and iOS builds, consolidating build steps to single jobs for each platform. This streamlines the CI configuration and reduces complexity by building default release APKs and iOS apps without targeting multiple ABIs or device/simulator distinctions.

Author: lijy91

.github/workflows/ci.yml

@@ -84,18 +84,11 @@ jobs:
       - name: Run tests
         run: dart pub global run melos run test
 
-  # Android builds (ARM64, ARMv7, x86_64)
+  # Android build
   build-android:
-    name: Build Android (${{ matrix.abi }})
+    name: Build Android
     runs-on: ubuntu-latest
     needs: [lint]
-    strategy:
-      fail-fast: false
-      matrix:
-        abi:
-          - arm64-v8a
-          - armeabi-v7a
-          - x86_64
 
     steps:
       - name: Checkout repository
@@ -125,31 +118,21 @@ jobs:
           distribution: 'temurin'
           java-version: '17'
 
-      - name: Build cnativeapi example Android (${{ matrix.abi }})
+      - name: Build cnativeapi example Android
         run: |
           cd packages/cnativeapi/example
-          flutter build apk --release --target-platform android-${{ matrix.abi }}
+          flutter build apk --release
           
-      - name: Build nativeapi example Android (${{ matrix.abi }})
+      - name: Build nativeapi example Android
         run: |
           cd packages/nativeapi/example
-          flutter build apk --release --target-platform android-${{ matrix.abi }}
+          flutter build apk --release
 
-  # iOS builds (device and simulator)
+  # iOS build
   build-ios:
-    name: Build iOS (${{ matrix.target }})
+    name: Build iOS
     runs-on: macos-latest
     needs: [lint]
-    strategy:
-      fail-fast: false
-      matrix:
-        include:
-          - target: device
-            sdk: iphoneos
-            platform_name: iOS Device
-          - target: simulator
-            sdk: iphonesimulator
-            platform_name: iOS Simulator
 
     steps:
       - name: Checkout repository
@@ -173,23 +156,15 @@ jobs:
       - name: Bootstrap melos
         run: dart pub global run melos bootstrap
 
-      - name: Build cnativeapi example iOS (${{ matrix.target }})
+      - name: Build cnativeapi example iOS
         run: |
           cd packages/cnativeapi/example
-          if [ "${{ matrix.target }}" == "simulator" ]; then
-            flutter build ios --simulator --release --no-codesign
-          else
-            flutter build ios --release --no-codesign
-          fi
+          flutter build ios --release --no-codesign
           
-      - name: Build nativeapi example iOS (${{ matrix.target }})
+      - name: Build nativeapi example iOS
         run: |
           cd packages/nativeapi/example
-          if [ "${{ matrix.target }}" == "simulator" ]; then
-            flutter build ios --simulator --release --no-codesign
-          else
-            flutter build ios --release --no-codesign
-          fi
+          flutter build ios --release --no-codesign
 
   # Linux build
   build-linux: