Tobias Gesellchen c5a3911104 Fix SSDP discovery and enhance device discovery consistency ...

Major improvements to device discovery system:

🔧 **SSDP Discovery Fixed**:
- Fixed networking issue where SSDP used connected UDP socket instead of UDP listener
- SSDP now properly receives unicast responses from multicast requests
- UPnP discovery now works reliably and finds all MediaRenderer devices

✨ **Enhanced DiscoveredDevice Model**:
- Added consistent URL fields (APIBaseURL, InfoURL) for all discovery methods
- Added protocol-specific fields (UPnPLocation, UPnPUSN, MDNSHostname, etc.)
- Added DiscoveryMethod tracking to show how devices were found
- Added device merging support for same device found via multiple protocols

🚀 **Unified Discovery Improvements**:
- Fixed device merging logic to properly combine protocol-specific data
- Discovery methods now correctly show combinations like 'Configuration+SSDP/UPnP+mDNS/Bonjour'
- Removed duplicate configuration device loading in individual services
- All three discovery methods (SSDP, mDNS, Configuration) work together seamlessly

🛠 **Updated Tools & Examples**:
- Updated soundtouch-cli to display new consistent field structure
- Enhanced all example programs with better device information display
- Added new unified discovery example demonstrating all three methods
- Fixed context timeout issues in example programs

📋 **Comprehensive Testing**:
- All tests updated and passing
- Real-world validation with actual Bose SoundTouch devices
- Confirmed discovery methods properly merge device data

Every discovered device now has consistent http://host:port/info URLs regardless
of discovery method, while preserving valuable protocol-specific metadata.

2026-01-10 23:01:22 +01:00

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main.go

Fix SSDP discovery and enhance device discovery consistency

2026-01-10 23:01:22 +01:00