chore: update .gitignore and README for keystore security; configure release signing in build.gradle

.gitignore

@@ -46,3 +46,8 @@ app.*.map.json
 /android/app/debug
 /android/app/profile
 /android/app/release
+
+# Keystore files (sensitive - keep secure)
+/android/app/*.jks
+/android/app/*.keystore
+/android/keystore.properties

README.md

@@ -1,3 +1,33 @@
 # hadi_hoda_flutter
 
 A new Flutter project.
+
+## Building for Google Play Release
+
+This project includes a keystore for signing release builds for Google Play Store.
+
+### Security Setup
+- **Keystore file**: `android/app/upload-keystore.jks` (excluded from git)
+- **Properties file**: `android/keystore.properties` (excluded from git)
+- **Key alias**: `upload`
+
+### Important Security Notes
+- 🔐 Keystore files and passwords are excluded from version control
+- 🔐 Keep `upload-keystore.jks` and `keystore.properties` files secure
+- 🔐 Backup these files in a safe location separate from your code
+- 🔐 Never share passwords or keystore files with unauthorized parties
+
+### Building Release APK
+
+To build a release APK for Google Play:
+
+```bash
+flutter build apk --release
+```
+
+The APK will be generated in `build/app/outputs/flutter-apk/` with the name `Hadi & Hoda v{version}+{versionCode}.apk`.
+
+### Important Security Notes
+- Keep the keystore file (`upload-keystore.jks`) secure and don't commit it to version control
+- Backup the keystore file in a safe location
+- Never share the passwords with unauthorized parties

android/app/build.gradle.kts

@@ -2,6 +2,8 @@ import kotlin.text.all
 import kotlin.text.find
 import kotlin.text.isNotEmpty
 import kotlin.text.replace
+import java.io.FileInputStream
+import java.util.Properties
 
 plugins {
     id("com.android.application")
@@ -10,6 +12,12 @@ plugins {
     id("dev.flutter.flutter-gradle-plugin")
 }
 
+def keystoreProperties = new Properties()
+def keystorePropertiesFile = rootProject.file('keystore.properties')
+if (keystorePropertiesFile.exists()) {
+    keystoreProperties.load(new FileInputStream(keystorePropertiesFile))
+}
+
 android {
     namespace = "com.example.hadi_hoda_flutter"
     compileSdk = 36
@@ -35,11 +43,18 @@ android {
         versionName = flutter.versionName
     }
 
+    signingConfigs {
+        create("release") {
+            keyAlias = keystoreProperties['keyAlias']
+            keyPassword = keystoreProperties['keyPassword']
+            storeFile = file(keystoreProperties['storeFile'])
+            storePassword = keystoreProperties['storePassword']
+        }
+    }
+
     buildTypes {
         release {
-            // TODO: Add your own signing config for the release build.
-            // Signing with the debug keys for now, so `flutter run --release` works.
-            signingConfig = signingConfigs.getByName("debug")
+            signingConfig = signingConfigs.getByName("release")
         }
     }