refactor(cli): general ux improvements

[tomip01]

Important

This may break scripts with deploy, transfer, sign, deposit, claim-withdraw and withdraw

Description

Make overall improvements to rex CLI UX.

Changes

Better Output Formatting

• Add function for readable transaction receipt display after transfer, send, and deploy commands
• Add function for readable transaction output with input data as hex string (instead of raw bytes)
• Add --cast (-c) flag to skip waiting for receipt (send async)
• Add --silent (-s) flag to suppress receipt output

CLI Ergonomics

• Change private_key from positional argument to --private-key flag (also reads from PRIVATE_KEY env var)
• Change rpc_url from positional argument to --rpc-url flag with sane defaults
• Add keccak as visible alias for hash command

Calldata Parsing Improvements

• Fix bytes parsing to accept 0x prefix (e.g., 0x1234 now works, not just 1234)
• Add support for fixed-size array types in encode-calldata (e.g., uint64[3] with [1234,5678,9012])

Documentation

• Update README with new commands: create2-address, encode-calldata, decode-calldata, authorize
• Update README to show keccak alias for hash command

Examples

Better receipt print

$ rex receipt 0xdb71a29300fd372ced76e37260034e1e7c48334889fad676f017630e490d67df
Receipt for transaction 0xdb71a29300fd372ced76e37260034e1e7c48334889fad676f017630e490d67df:
  transaction index:    126
  from:                 0x000aebc2568796fdb763cab67b31e0fee58fe17d
  to:                   0x039efa1cb568c5daa8c41ad887d9332ce68a9a06
  gas used:             94838
  effective gas price:  1200008
  contract address:
  blob gas price:
  blob gas used:
  status:               success
  cumulative gas used:  12095726
  logs bloom:           0x00000000000000000000000000000000000000000000000000000000000000400000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004000000000000000000000000000000000000000080000000000000000000000000000000000000002000000000000000000000000000000000000000000040000000020000000000000000000000000000000000000000000000000000400000000000000000000000800000000000000000000000000000000000000000800000000000000000000
  tx type:              EIP1559
  block hash:           0x922c7afbb9f4845579bce116224c3e24697137c7b256a49b899a7a637d51344a
  block number:         153
  transaction hash:     0xdb71a29300fd372ced76e37260034e1e7c48334889fad676f017630e490d67df
  logs:
    [126] address:      0x039efa1cb568c5daa8c41ad887d9332ce68a9a06
         topics:
           [0] 0x7d76dd36798b00b9c38def780dc4741f49a0f441afba4260388a8f5634eac186
           [1] 0x000000000000000000000000000aebc2568796fdb763cab67b31e0fee58fe17d
         data: 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

Better Transaction Display (rex tx)

$ rex tx 0x149eaf7a3873ff49a9e2800e261abbe44115d860e9640c2587f94b31ae8bd7ab
Transaction 0x149eaf7a3873ff49a9e2800e261abbe44115d860e9640c2587f94b31ae8bd7ab:
  type:               EIP1559
  from:               0x17d6e059e156e245871c9995b0e8add553d50d79
  to:                 0xd15fe25ed0dba12fe05e7029c88b10c25e8880e3
  value:              2225362083535689
  nonce:              3524
  gas limit:          100000
  max fee per gas:    927742796
  max priority fee:   0
  chain id:           560048
  input:              0xe63d38ed00000000000000000000000000000000...

Keccak Alias

$ rex keccak --input 0x1234
0x56570de287d73cd1cb6092bb8fdee6173974955fdef345ae579ee9f475ea7432

Bytes Parsing with 0x Prefix

$ rex encode-calldata "test(bytes)" 0x1234
0x2f570a2300000000000000000000000000000000000000000000000000000000000000200000000000000000000000000000000000000000000000000000000000000002123400...

Array Types Support

$ rex encode-calldata "test(uint64[3])" "[1234,5678,9012]"
0x479b0b4d00000000000000000000000000000000000000000000000000000000000004d2000000000000000000000000000000000000000000000000000000000000162e0000000000000000000000000000000000000000000000000000000000002334

[tomip01]

LGTM, two small comments