Add account:create-funded for agent-friendly account creation

[paulgnz]

Summary

• Adds account:create-funded command that creates new accounts funded by an existing account, bypassing email verification entirely
• Uses a 3-action on-chain transaction: eosio::newaccount + eosio::buyrambytes + eosio.proton::newaccres
• Creator pays only for RAM (~6-7 XPR for 3000 bytes); CPU/NET are delegated for free by the network via wlcm.proton
• Includes --owner flag to add a backup recovery account to the owner permission, so a trusted account can always rotate keys if the agent key is lost or compromised
• Includes detailed help text and validation errors to guide AI agents on account naming rules (a-z, 1-5 only, 4-12 chars)

Usage

# Auto-generate keys
proton account:create-funded myaccount --creator fundingacct

# With backup owner for key recovery
proton account:create-funded agentacct -c fundingacct --owner paul123

# With existing public key
proton account:create-funded myaccount -c fundingacct -k PUB_K1_...

# With custom RAM
proton account:create-funded myaccount -c fundingacct --ram 8192

How --owner works

When --owner paul123 is specified, the new account's permissions are set up as:

• owner (threshold=1): generated key + paul123@active — either can recover/rotate keys
• active (threshold=1): generated key only — agent operates independently day-to-day

No extra actions are needed. The backup account is added to the owner authority struct in the same eosio::newaccount action.

Tested on testnet

• paul123 created agenttest11 with --owner paul123
• agenttest11 (agent) created agentchild1 with --owner paul123 — proving agents can spawn sub-accounts
• Verified all accounts have correct permissions, RAM, and delegated CPU/NET
• Validated error messages for invalid names (bad digits, bad chars, wrong length, duplicate accounts)

Test plan

• Create account with auto-generated key
• Create account with --owner backup recovery account
• Agent account creates sub-account with --owner
• Create account with existing public key via --key flag
• Duplicate account detection
• Invalid digit error (0, 6-9)
• Invalid character error
• Name length validation
• Help output includes naming rules, security info, and examples

🤖 Generated with Claude Code