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/transfer.ts

@@ -0,0 +1,75 @@
+import { PublicKey } from "@solana/web3.js";
+import { Action } from "../types/action";
+import { SolanaAgentKit } from "../agent";
+import { z } from "zod";
+
+const transferAction: Action = {
+  name: "solana_transfer",
+  similes: [
+    "send tokens",
+    "transfer funds",
+    "send money",
+    "send sol",
+    "transfer tokens"
+  ],
+  description: `Transfer tokens or SOL to another address (also called as wallet address).`,
+  examples: [
+    [
+      {
+        input: {
+          to: "8x2dR8Mpzuz2YqyZyZjUbYWKSWesBo5jMx2Q9Y86udVk",
+          amount: 1
+        },
+        output: {
+          status: "success",
+          message: "Transfer completed successfully",
+          amount: 1,
+          recipient: "8x2dR8Mpzuz2YqyZyZjUbYWKSWesBo5jMx2Q9Y86udVk",
+          token: "SOL",
+          transaction: "5UfgJ5vVZxUxefDGqzqkVLHzHxVTyYH9StYyHKgvHYmXJgqJKxEqy9k4Rz9LpXrHF9kUZB7"
+        },
+        explanation: "Transfer 1 SOL to the recipient address"
+      }
+    ],
+    [
+      {
+        input: {
+          to: "8x2dR8Mpzuz2YqyZyZjUbYWKSWesBo5jMx2Q9Y86udVk",
+          amount: 100,
+          mint: "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v"
+        },
+        output: {
+          status: "success",
+          message: "Transfer completed successfully",
+          amount: 100,
+          recipient: "8x2dR8Mpzuz2YqyZyZjUbYWKSWesBo5jMx2Q9Y86udVk",
+          token: "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
+          transaction: "4VfgJ5vVZxUxefDGqzqkVLHzHxVTyYH9StYyHKgvHYmXJgqJKxEqy9k4Rz9LpXrHF9kUZB7"
+        },
+        explanation: "Transfer 100 USDC tokens to the recipient address"
+      }
+    ]
+  ],
+  schema: z.object({
+    to: z.string().min(32, "Invalid Solana address"),
+    amount: z.number().positive("Amount must be positive"),
+    mint: z.string().optional()
+  }),
+  handler: async (agent: SolanaAgentKit, input: Record<string, any>) => {
+    const recipient = new PublicKey(input.to);
+    const mintAddress = input.mint ? new PublicKey(input.mint) : undefined;
+
+    const tx = await agent.transfer(recipient, input.amount, mintAddress);
+
+    return {
+      status: "success",
+      message: "Transfer completed successfully",
+      amount: input.amount,
+      recipient: input.to,
+      token: input.mint || "SOL",
+      transaction: tx
+    };
+  }
+};
+
+export default transferAction;