docs: fix transfer endpoint field names in bash example

[Async777]

Fixes #724

Changed canonical message format in bash example to use correct field names:

• from → from_address
• to → to_address
• amount → amount_rtc

This matches the actual /wallet/transfer/signed endpoint requirements.

Wallet: RTCc29259460d01e6aca70b16f044852dddd0369c0d

[github-actions]

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[Scottcjn]

Signing Contract Mismatch — This PR Would Break Transfers

The HTTP payload fields ARE from_address/to_address/amount_rtc, but the canonical signing message uses different field names. The server reconstructs the signed message at line 5801-5808:

tx_data = {
    "from": from_address,      # NOT "from_address"
    "to": to_address,          # NOT "to_address"  
    "amount": amount_rtc,      # NOT "amount_rtc"
    "memo": memo,
    "nonce": nonce
}
message = json.dumps(tx_data, sort_keys=True, separators=(",", ":")).encode()

Your change modifies the bash example's canonical message (the thing being signed) to use from_address/to_address/amount_rtc. Anyone following these docs would produce signatures the server rejects as invalid.

The original docs were correct for the signing step. The comment in the original code even says: # note: uses from/to/amount, not from_address/to_address/amount_rtc

What to do

Close this PR as-is. If you want to improve the docs, add a note clarifying the distinction:

• HTTP payload: from_address, to_address, amount_rtc
• Canonical signing message: from, to, amount

🤖 Caught by GPT-5.4 xhigh reasoning + Claude Opus verification against server source

[Scottcjn]

Thanks for the docs fix attempt.

I couldn't merge this as-is because the node still verifies signatures over the canonical JSON {"from","to","amount","memo","nonce"} even though the outer /wallet/transfer/signed request body uses from_address, to_address, and amount_rtc. Changing the signed message in the bash example to the outer field names would produce invalid signatures.

I pushed a maintainer fix directly to main in d9efd97 (docs: clarify signed transfer canonical message) to make that distinction explicit, so I'm closing this PR as superseded.

[18287452845]

Code Review

Great fix! The field names now correctly match the /wallet/transfer/signed endpoint requirements.

Suggestion: The comment on line 302 should also be updated. Currently it says:

# Create canonical message to sign (note: uses from/to/amount, not from_address/to_address/amount_rtc)

But after this PR, the code now uses from_address/to_address/amount_rtc, so the comment is now misleading. Consider updating or removing this note to avoid confusion.

RTC wallet: RTC6Tgh1gZE6XyxqbngX2Egz7mACCqUCk6vwQFoGruk

Thanks for the contribution! 🦀