feat: add Meteora DAMM V2 support and bump to v3.0.1

Add Meteora DAMM V2 trading protocol with instruction builder, type definitions, and fixed_output_token_amount parameter for precise output control. Update all examples and documentation.

examples/seed_trading/src/main.rs

@@ -41,6 +41,7 @@ async fn main() -> Result<(), Box<dyn std::error::Error>> {
         create_mint_ata: true,
         open_seed_optimize: true, // ❗️❗️❗️❗️ open seed optimize
         durable_nonce: None,
+        fixed_output_token_amount: None,
     };
     client.buy(buy_params).await?;
 
@@ -78,6 +79,7 @@ async fn main() -> Result<(), Box<dyn std::error::Error>> {
         close_output_token_ata: true,
         open_seed_optimize: true, // ❗️❗️❗️❗️ open seed optimize
         durable_nonce: None,
+        fixed_output_token_amount: None,
     };
     client.sell(sell_params).await?;