docs: Update all docs with rpc, staking, token, CI badge

- README: CI badge, rpc/staking/token in CLI usage
- CLAUDE.md: new commands in architecture
- CHANGELOG: full [Unreleased] section update

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: GrapeInTheTree

CHANGELOG.md

@@ -19,6 +19,17 @@ Format based on [Keep a Changelog](https://keepachangelog.com/).
 - **`butler version`** — displays version and commit hash
   - GoReleaser ldflags injection at build time
   - Local builds show "dev (none)", releases show "v0.4.0 (abc1234)"
+- **`butler rpc <method> [params]`** — raw JSON-RPC escape hatch for arbitrary RPC calls
+- **`butler staking <address>`** — personal staking positions per validator via StakingPool (0x...7001)
+  - Parallel `getStakedAmount` + `claimableRewards` queries for all 13 validators
+  - Filters to only show validators with active stakes
+- **`butler token <contract>`** — token metadata via Chiliscan `tokeninfo` API
+  - Name, symbol, type, decimals, total supply, price, social links, verification status
+- **4byte method decoding** in `butler tx` — auto-resolves method selectors to function names
+  - OpenChain API + local cache of common ERC-20 selectors
+  - e.g., `0x0efe6a8b` → `deposit(address,uint256,uint256)`
+- **CI pipeline** — GitHub Actions: build + vet + test on every push/PR
+- **MIT LICENSE** file
 - **`CallContract()`** RPC function — `eth_call` wrapper
 - **`DecodeRawOutputs()`** — returns raw Go types (not strings) for programmatic use
 - **22 unit tests** for ABI helper functions (ParseCallSignature, ConvertArg, FormatValue, BuildCalldata)

CLAUDE.md

@@ -56,6 +56,9 @@ butler block [number|latest]        # Block information
 butler chain-info                   # Chain status: latest block, gas price
 butler call <contract> <sig> [args] # Generic read-only contract call (eth_call)
 butler validators                   # Chiliz validator set + staking status
+butler staking <addr>               # Personal staking positions + rewards
+butler token <contract>             # Token metadata via Chiliscan API
+butler rpc <method> [params]        # Raw JSON-RPC escape hatch
 butler version                      # Build version and commit hash
 
 Global flags:

README.md

@@ -13,6 +13,7 @@
   <a href="https://goreportcard.com/report/github.com/GrapeInTheTree/go-ethereum-butler"><img src="https://goreportcard.com/badge/github.com/GrapeInTheTree/go-ethereum-butler" alt="Go Report Card"></a>
   <a href="https://opensource.org/licenses/MIT"><img src="https://img.shields.io/badge/License-MIT-yellow.svg" alt="License: MIT"></a>
   <a href="https://github.com/GrapeInTheTree/go-ethereum-butler/releases"><img src="https://img.shields.io/github/downloads/GrapeInTheTree/go-ethereum-butler/total" alt="Downloads"></a>
+  <a href="https://github.com/GrapeInTheTree/go-ethereum-butler/actions/workflows/ci.yml"><img src="https://github.com/GrapeInTheTree/go-ethereum-butler/actions/workflows/ci.yml/badge.svg" alt="CI"></a>
 </p>
 
 ---
@@ -94,6 +95,9 @@ butler block [number|latest]        Block information
 butler chain-info                   Chain status: latest block, gas price
 butler call <contract> <sig> [args] Read-only contract call (eth_call)
 butler validators                   Chiliz validator set and staking status
+butler staking <addr>               Personal staking positions and rewards
+butler token <contract>             Token metadata, price, and social links
+butler rpc <method> [params]        Raw JSON-RPC escape hatch
 butler version                      Print version and build info
 
 Global flags: