[PM-9473] Add messaging for macOS passkey extension and desktop (#10768)

* Add messaging for macos passkey provider

* fix: credential id conversion

* Make build.sh executable

Co-authored-by: Colton Hurst <colton@coltonhurst.com>

* chore: add TODO

---------

Co-authored-by: Andreas Coroiu <andreas.coroiu@gmail.com>
Co-authored-by: Andreas Coroiu <acoroiu@bitwarden.com>
Co-authored-by: Colton Hurst <colton@coltonhurst.com>

apps/desktop/desktop_native/macos_provider/src/registration.rs

@@ -0,0 +1,43 @@
+use std::sync::Arc;
+
+use serde::{Deserialize, Serialize};
+
+use crate::{BitwardenError, Callback, UserVerification};
+
+#[derive(uniffi::Record, Debug, Serialize, Deserialize)]
+#[serde(rename_all = "camelCase")]
+pub struct PasskeyRegistrationRequest {
+    rp_id: String,
+    user_name: String,
+    user_handle: Vec<u8>,
+    client_data_hash: Vec<u8>,
+    user_verification: UserVerification,
+    supported_algorithms: Vec<i32>,
+}
+
+#[derive(uniffi::Record, Serialize, Deserialize)]
+#[serde(rename_all = "camelCase")]
+pub struct PasskeyRegistrationResponse {
+    rp_id: String,
+    client_data_hash: Vec<u8>,
+    credential_id: Vec<u8>,
+    attestation_object: Vec<u8>,
+}
+
+#[uniffi::export(with_foreign)]
+pub trait PreparePasskeyRegistrationCallback: Send + Sync {
+    fn on_complete(&self, credential: PasskeyRegistrationResponse);
+    fn on_error(&self, error: BitwardenError);
+}
+
+impl Callback for Arc<dyn PreparePasskeyRegistrationCallback> {
+    fn complete(&self, credential: serde_json::Value) -> Result<(), serde_json::Error> {
+        let credential = serde_json::from_value(credential)?;
+        PreparePasskeyRegistrationCallback::on_complete(self.as_ref(), credential);
+        Ok(())
+    }
+
+    fn error(&self, error: BitwardenError) {
+        PreparePasskeyRegistrationCallback::on_error(self.as_ref(), error);
+    }
+}