feat: Add project inputs for displayName and region

packages/celest/lib/src/core/project.dart

@@ -11,8 +11,37 @@ class Project implements CloudWidget {
   /// {@macro celest.core.project}
   const Project({
     required this.name,
+    this.displayName,
+    this.region,
   });
 
   /// The name of the project as its identified in your Celest backend.
   final String name;
+
+  /// A friendly name for the project.
+  final String? displayName;
+
+  /// The region of the project, when deploying to Celest Cloud.
+  ///
+  /// If not specified, the closest region will be chosen at the time of
+  /// deployment.
+  final Region? region;
+}
+
+/// The Celest cloud region to deploy to.
+enum Region {
+  /// The North America region.
+  ///
+  /// Includes the `us-east1`, `us-south1` and `us-west1` GCP regions.
+  northAmerica,
+
+  /// The Europe region.
+  ///
+  /// Includes the `europe-west4` and `europe-west9` GCP regions.
+  europe,
+
+  /// The Asia-Pacific region.
+  ///
+  /// Includes the `asia-south1` GCP region.
+  asiaPacific,
 }