feat: Enhance Solana tools with action-based architecture

- Introduced action system for Solana tools, allowing for better modularity and maintainability.
- Updated SolanaBalanceTool, SolanaTransferTool, SolanaDeployTokenTool, SolanaDeployCollectionTool, SolanaMintNFTTool, SolanaTradeTool, and SolanaRequestFundsTool to utilize action handlers.
- Added new action exports in index.ts for better organization and accessibility.

src/actions/index.ts

@@ -0,0 +1,20 @@
+import deployTokenAction from "./deployToken";
+import balanceAction from "./balance";
+import transferAction from "./transfer";
+import deployCollectionAction from "./deployCollection";
+import mintNFTAction from "./mintNFT";
+import tradeAction from "./trade";
+import requestFundsAction from "./requestFunds";
+
+export const actions = [
+  deployTokenAction,
+  balanceAction,
+  transferAction,
+  deployCollectionAction,
+  mintNFTAction,
+  tradeAction,
+  requestFundsAction,
+  // Add more actions here as they are implemented
+];
+
+export type { Action, ActionExample, Handler } from "../types/action";