Add base project

Implement auth method

android/src/main/java/com/pubky/PubkyModule.kt

@@ -0,0 +1,43 @@
+package com.pubky
+
+import com.facebook.react.bridge.Arguments
+import com.facebook.react.bridge.ReactApplicationContext
+import com.facebook.react.bridge.ReactContextBaseJavaModule
+import com.facebook.react.bridge.ReactMethod
+import com.facebook.react.bridge.Promise
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.launch
+import kotlinx.coroutines.withContext
+import uniffi.mobile.auth
+
+class PubkyModule(reactContext: ReactApplicationContext) :
+  ReactContextBaseJavaModule(reactContext) {
+
+  override fun getName(): String {
+    return NAME
+  }
+
+@ReactMethod
+fun auth(url: String, secretKey: String, promise: Promise) {
+    CoroutineScope(Dispatchers.IO).launch {
+        try {
+            val result = auth(url, secretKey)
+            val array = Arguments.createArray().apply {
+                result.forEach { pushString(it) }
+            }
+            withContext(Dispatchers.Main) {
+                promise.resolve(array)
+            }
+        } catch (e: Exception) {
+            withContext(Dispatchers.Main) {
+                promise.reject("Error", e.message)
+            }
+        }
+    }
+}
+
+  companion object {
+    const val NAME = "Pubky"
+  }
+}