feat(activity): 新增 BaseActivity 沉浸式基类和 HomeActivity 首页，统一 Activity 继承关系

- 新增 BaseActivity：继承 ComponentActivity，隐藏状态栏和导航栏，底部上滑可临时唤出导航栏
- 新增 HomeActivity（XML 版本）及对应布局 activity_home.xml，作为应用启动入口
- GoodsListActivity、FoodCollectionActivity、LocalImagePreviewActivity、PurchaseOrderActivity 统一改为继承 BaseActivity
- 更新 AndroidManifest.xml：HomeActivity 注册为启动入口

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

app/src/main/java/com/sw/inbound/activity/FoodCollectionActivity.kt

@@ -10,7 +10,7 @@ import android.text.TextUtils
 import android.view.View
 import android.view.ViewGroup
 import android.widget.TextView
-import androidx.activity.ComponentActivity
+import com.sw.inbound.base.BaseActivity
 import androidx.activity.viewModels
 import androidx.camera.view.PreviewView
 import androidx.core.view.updateLayoutParams
@@ -68,7 +68,7 @@ import java.io.File
  */
 @SuppressLint("NotifyDataSetChanged")
 @AndroidEntryPoint
-class FoodCollectionActivity : ComponentActivity() {
+class FoodCollectionActivity : BaseActivity() {
 
     companion object {
         const val TAG = "FoodCollectionActivity"