Initial commit: Pezkuwi Wallet Android

Security hardened release:
- Code obfuscation enabled (minifyEnabled=true, shrinkResources=true)
- Sensitive files excluded (google-services.json, keystores)
- Branch.io key moved to BuildConfig placeholder
- Updated dependencies: OkHttp 4.12.0, Gson 2.10.1, BouncyCastle 1.77
- Comprehensive ProGuard rules for crypto wallet
- Navigation 2.7.7, Lifecycle 2.7.0, ConstraintLayout 2.1.4

feature-settings-api/build.gradle

@@ -0,0 +1,19 @@
+apply plugin: 'kotlin-parcelize'
+
+android {
+    namespace 'io.novafoundation.nova.feature_settings_api'
+}
+
+dependencies {
+    implementation coroutinesDep
+    implementation project(":common")
+
+    implementation coroutinesDep
+
+    implementation androidDep
+    implementation materialDep
+    implementation constraintDep
+
+    testImplementation jUnitDep
+    testImplementation mockitoDep
+}