feat: Add ci workflow for the repo

An event will trigger when every new pull request is created or pushed to the main branch, which includes the following actions:
- checkout the branch 
- build gradle 
- build the project
- run lint to check build errors
- run unit test

.github/workflows/android-kotlin-ci.yml

@@ -0,0 +1,58 @@
+name: Kotlin Android CI Workflow
+
+on:
+  push:
+    branches: [ "master" ]
+  pull_request:
+    branches: [ "master" ]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      # Step 1: Checkout the code
+      - name: Checkout code
+        uses: actions/checkout@v3
+
+      # Step 2: Set up JDK for Android
+      - name: Set up JDK 11
+        uses: actions/setup-java@v3
+        with:
+          distribution: 'zulu'
+          java-version: '11'
+
+      # Step 3: Set up Android SDK
+      - name: Set up Android SDK
+        uses: android-actions/setup-android@v2
+        with:
+          api-level: 35
+          build-tools: '35.0.0'
+
+      # Step 4: Cache Gradle dependencies
+      - name: Cache Gradle dependencies
+        uses: actions/cache@v3
+        with:
+          path: |
+            ~/.gradle/caches
+            ~/.gradle/wrapper
+          key: gradle-${{ hashFiles('**/*.gradle*', '**/gradle-wrapper.properties') }}
+          restore-keys: |
+            gradle-
+
+      # Step 5: Build the project
+      - name: Build with Gradle
+        run: ./gradlew assembleDebug
+
+      # Step 6: Run Lint checks
+      - name: Run Kotlin Lint
+        run: ./gradlew lintDebug
+
+      # Step 7: Run unit tests
+      - name: Run Unit Tests
+        run: ./gradlew testDebugUnitTest
+
+      # Step 8: Run Instrumentation Tests (Optional)
+      # Uncomment this step if you have instrumentation tests configured
+      # - name: Run Instrumented Tests
+      #   run: ./gradlew connectedAndroidTest