To-Do List

Core Components
[✓] Basic Configuration System
    [✓] Basic config structure
    [✓] Default settings
    [✓] Config file loading/saving
    [✓] Path management

[✓] Constants Definition
    [✓] Packet constants
    [✓] MTU constants
    [✓] Header types
    [✓] Additional protocol constants

[✓] Identity Management
    [✓] Identity creation
    [✓] Key pair generation
    [✓] Identity storage/recall

[✓] Packet Handling
    [✓] Packet creation
    [✓] Packet validation
    [✓] Basic proof system

[✓] Crypto Implementation
    [✓] Basic encryption
    [✓] Key exchange
    [✓] Hash functions
    [✓] Ratchet implementation

[✓] Transport Layer
    [✓] Path management
    [✓] Basic packet routing
    [✓] Announce handling
    [✓] Link management
    [✓] Resource cleanup
    [✓] Network layer integration

[✓] Destination System
    [✓] Destination creation
    [✓] Destination types (IN/OUT)
    [✓] Destination aspects
    [✓] Announce implementation
    [✓] Ratchet support
    [✓] Request handlers

[✓] Link System
    [✓] Link establishment
    [✓] Link teardown
    [✓] Basic packet transfer
    [✓] Encryption/Decryption
    [✓] Identity verification
    [✓] Request/Response handling

[✓] Resource System
    [✓] Resource creation
    [✓] Resource transfer
    [✓] Compression
    [✓] Progress tracking
    [✓] Segmentation
    [✓] Cleanup routines

Basic Features
[✓] Network Interface
    [✓] Basic UDP transport
    [✓] TCP transport
    [ ] Interface discovery
    [✓] Connection management
    [✓] Packet framing
    [✓] Transport integration

[✓] Announce System
    [✓] Announce creation
    [✓] Announce propagation
    [✓] Path requests

[✓] Resource Management
    [✓] Resource tracking
    [✓] Memory management
    [✓] Cleanup routines

[✓] Client Implementation
    [✓] Basic client structure
    [✓] Configuration handling
    [✓] Interactive mode
    [✓] Link establishment
    [✓] Message sending/receiving

Next Immediate Tasks:
1. [✓] Fix import cycles by creating common package
2. [✓] Complete NetworkInterface implementation
3. [✓] Add comprehensive interface tests
4. [✓] Implement connection retry logic
5. [✓] Add client reconnection handling
6. [ ] Implement Interface discovery
7. [ ] Test network layer integration end-to-end
8. [ ] Add error handling for network failures
9. [ ] Implement interface auto-configuration
10. [ ] Add metrics collection for interfaces
11. [ ] Implement client-side path caching
12. [ ] Add support for additional transport types