feat: add wUSDT bridge feature module

- Add feature-bridge-api module with domain models:
  - BridgeConfig: bridge configuration (addresses, fees, limits)
  - BridgeStatus: backing ratio, reserves, operational status
  - BridgeTransaction: deposit/withdrawal records

- Add feature-bridge-impl module with UI:
  - BridgeDepositFragment: shows Polkadot deposit address with QR code
  - BridgeStatusFragment: shows backing ratio and transparency info

Bridge enables 1:1 backed wUSDT on Pezkuwi Asset Hub,
backed by real USDT on Polkadot Asset Hub.

Bridge wallet: 16dSTc3BexjQKiPta7yNncF8nio4YgDQiPbudHzkuh7XJi8K (Polkadot)
wUSDT Asset ID: 1000, Min deposit: 10 USDT, Fee: 0.1%

feature-bridge-impl/build.gradle

@@ -0,0 +1,41 @@
+apply plugin: 'kotlin-parcelize'
+
+android {
+    namespace 'io.novafoundation.nova.feature_bridge_impl'
+
+    buildFeatures {
+        viewBinding = true
+    }
+}
+
+dependencies {
+    implementation coroutinesDep
+    implementation project(':runtime')
+    implementation project(":feature-account-api")
+    implementation project(":feature-wallet-api")
+    implementation project(":feature-bridge-api")
+    implementation project(":common")
+
+    implementation materialDep
+
+    implementation daggerDep
+    ksp daggerCompiler
+
+    implementation substrateSdkDep
+
+    implementation androidDep
+    implementation constraintDep
+
+    implementation lifeCycleKtxDep
+    implementation viewModelKtxDep
+
+    implementation coroutinesDep
+    implementation coroutinesAndroidDep
+
+    // QR Code generation
+    implementation zXingCoreDep
+
+    api project(':core-api')
+
+    testImplementation project(':test-shared')
+}