Reject zero/negative SOL transfer amount

[smypmsa]

Problem

pumpfun wallet transfer <recipient> 0 sends a 0-lamport transaction to the network, wasting fees.

Fix

Add validation in src/pumpfun_cli/commands/wallet.py wallet_transfer(), before calling core:

if amount != "all" and float(amount) <= 0:
    error("Transfer amount must be greater than zero.")

Files to change

• src/pumpfun_cli/commands/wallet.py — add guard in wallet_transfer()
• tests/test_commands/test_wallet_cmd.py — add test for zero amount

How to test

uv run pytest tests/test_commands/test_wallet_cmd.py -v