feat: add solana contract versions

Author: gavriliumircea

src/solana/enums.ts

@@ -0,0 +1,19 @@
+export enum Protocol {
+  Airdrops = "airdrops",
+  Lockup = "lockup",
+}
+
+export namespace Version {
+  export enum Airdrops {
+    V1_0 = "v1.0",
+  }
+
+  export enum Lockup {
+    V1_0 = "v1.0",
+  }
+}
+
+export const enums = {
+  Protocol,
+  Version,
+};

src/solana/index.ts

@@ -1,2 +1,3 @@
 export { chains } from "./chains";
 export * from "./idl";
+export * from "./types";

src/solana/types.ts

@@ -1,4 +1,5 @@
 import type { Chain as ViemChain } from "viem";
+import type * as enums from "./enums";
 
 /**
  * @see https://github.com/wevm/viem/discussions/3678
@@ -46,4 +47,13 @@ export namespace Solana {
       cluster: Cluster;
     };
   };
+
+  export type Protocol = `${enums.Protocol}` | enums.Protocol;
+
+  export namespace Version {
+    export type Airdrops = `${enums.Version.Airdrops}` | enums.Version.Airdrops;
+    export type Lockup = `${enums.Version.Lockup}` | enums.Version.Lockup;
+  }
+
+  export type Version = Version.Airdrops | Version.Lockup;
 }