feat: Move solana create transaction to new file

sol.py

@@ -0,0 +1,45 @@
+from solders.keypair import Keypair
+from solders.pubkey import Pubkey
+from solana.rpc.api import Client
+from solders.system_program import TransferParams, transfer
+from solders.transaction import Transaction
+from solders.hash import Hash
+from solders.message import MessageV0
+from solders.transaction import VersionedTransaction
+from solders.null_signer import NullSigner
+import binascii
+import base64
+import os
+
+SOLANA_ADDRESS = None
+if os.path.isfile(".well-known/wallets/SOL"):
+    with open(".well-known/wallets/SOL") as file:
+        address = file.read()
+    SOLANA_ADDRESS = Pubkey.from_string(address.strip())
+
+def create_transaction(sender_address: str, amount: float) -> str:
+    if SOLANA_ADDRESS is None:
+        raise ValueError("SOLANA_ADDRESS is not set. Please ensure the .well-known/wallets/SOL file exists and contains a valid address.")
+    # Create transaction
+    sender = Pubkey.from_string(sender_address)
+    transfer_ix = transfer(
+        TransferParams(
+            from_pubkey=sender, to_pubkey=SOLANA_ADDRESS, lamports=int(
+                amount * 1000000000)
+        )
+    )
+    solana_client = Client("https://api.mainnet-beta.solana.com")
+    blockhashData = solana_client.get_latest_blockhash()
+    blockhash = blockhashData.value.blockhash
+
+    msg = MessageV0.try_compile(
+        payer=sender,
+        instructions=[transfer_ix],
+        address_lookup_table_accounts=[],
+        recent_blockhash=blockhash,
+    )
+    tx = VersionedTransaction(message=msg, keypairs=[NullSigner(sender)])
+    tx = bytes(tx).hex()
+    raw_bytes = binascii.unhexlify(tx)
+    base64_string = base64.b64encode(raw_bytes).decode("utf-8")
+    return base64_string