docs: finalize README and CHANGELOG

- Update main README with badges
- Add installation instructions
- Create CHANGELOG for v0.1.0
- Add contributing guidelines

Co-authored-by: Claudiu Dinu <claudiudinu1711@gmail.com>

Author: Kazopl

CHANGELOG.md

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+# Changelog
+
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+## [Unreleased]
+
+## [0.1.0] - 2026-01-11
+
+### Highlights
+
+- **Rust 2024 Edition** - Using the latest stable Rust features including let chains
+- **Trusted Publishing** - PyPI uses OIDC for secure publishing without API tokens
+- **Multi-registry** - Packages available on crates.io, npm and PyPI
+- **Multi-chain** - Support for EVM chains and Solana
+
+### Added
+
+#### Core Library (`mpc-wallet-core`)
+- 2-of-3 threshold MPC key generation using DKLs23 protocol
+- Distributed signing with policy enforcement
+- Key share refresh for proactive security
+- BIP32 hierarchical deterministic key derivation
+- Multi-chain support:
+  - EVM chains (Ethereum, Base, Arbitrum, etc.)
+  - Solana
+- ERC-4337 smart account integration
+- Policy engine with configurable rules:
+  - Per-transaction spending limits
+  - Daily/weekly spending limits
+  - Address whitelist/blacklist
+  - Time-of-day restrictions
+  - Contract interaction restrictions
+
+#### Message Relay (`mpc-wallet-relay`)
+- WebSocket-based message relay for MPC protocol coordination
+- Signing session management
+- Approval request handling
+- Webhook notifications for user devices
+- RESTful API for session status
+
+#### WASM Bindings (`@mpc-wallet/wasm`)
+- Browser-compatible WebAssembly bindings
+- Full key generation and signing support
+- Optimized bundle size
+
+#### TypeScript SDK (`@mpc-wallet/sdk`)
+- High-level `MpcAgentWallet` class
+- Chain-specific utilities for EVM and Solana
+- Browser and Node.js storage adapters
+- Full TypeScript type definitions
+
+#### Python SDK (`mpc-wallet`)
+- Async/await API design
+- Chain adapters for EVM and Solana
+- Policy configuration
+- Type hints with Pydantic models
+
+#### Smart Contracts
+- `MpcSmartAccount` - ERC-4337 compatible smart account
+- `MpcRecoveryModule` - Time-locked recovery mechanism
+- `SpendingLimitHook` - On-chain spending limit enforcement
+
+#### Documentation
+- Architecture overview
+- Security model documentation
+- Integration guides for AI agent frameworks
+- API reference for TypeScript and Python
+
+#### Examples
+- Basic wallet usage
+- ElizaOS plugin integration
+- LangChain tool integration
+- Telegram approval bot
+- DeFi agent automation
+
+### Security
+- Cryptographic operations use constant-time comparisons
+- Key shares encrypted at rest
+- No single point of failure in key management
+
+---
+
+## Package Versions
+
+| Package | Version | Registry |
+|---------|---------|----------|
+| mpc-wallet-core | 0.1.0 | [crates.io](https://crates.io/crates/mpc-wallet-core) |
+| mpc-wallet-relay | 0.1.0 | [crates.io](https://crates.io/crates/mpc-wallet-relay) |
+| @mpc-wallet/wasm | 0.1.0 | [npm](https://www.npmjs.com/package/@mpc-wallet/wasm) |
+| @mpc-wallet/sdk | 0.1.0 | [npm](https://www.npmjs.com/package/@mpc-wallet/sdk) |
+| mpc-wallet | 0.1.0 | [PyPI](https://pypi.org/project/mpc-wallet/) |
+
+[Unreleased]: https://github.com/Kazopl/mpc-agent-wallet/compare/v0.1.0...HEAD
+[0.1.0]: https://github.com/Kazopl/mpc-agent-wallet/releases/tag/v0.1.0