…mplementation

- Add deep_entropy.rs: Complete RIP-003 implementation with 5-layer entropy verification
  * Instruction timing, memory patterns, bus timing, thermal, and quirk layers
  * Hardware profiles for 486, Pentium, G4, G5, Alpha with emulation difficulty scores
  * Economic analysis proving emulation is more expensive than real hardware
  * Challenge-response verification system

- Create bin/node.rs: Full node implementation
  * Block validation and P2P networking
  * Mining proof collection and block assembly
  * Configurable with wallet, ports, and seed nodes

- Create bin/miner.rs: Mining client for vintage hardware
  * Hardware detection and age estimation
  * Deep entropy verification integration
  * Automatic proof submission with reward tracking

- Create benches/entropy_bench.rs: Performance benchmarks
  * Challenge generation, timing stats, profile lookup benchmarks
  * Hardware-specific cost analysis benchmarks

- Fix compilation errors across all modules:
  * WalletAddress field access (.0 instead of .address)
  * Sigma proposition serialization (Vec<u8> instead of [u8; 33])
  * SVG string raw literal escaping (r##"..."##)
  * Move semantics in proof submission
  * Match exhaustiveness in badge minting

- Add IMPLEMENTATION.md: Comprehensive documentation
  * Module descriptions and API reference
  * Build instructions for standard and vintage hardware
  * Test results and performance characteristics
  * Integration points and security considerations

- All 36 tests pass, release build compiles successfully

Co-authored-by: Qwen-Coder <qwen-coder@alibabacloud.com>