v0.13.0: Major refactoring with unified Rondevu class and service discovery

- Renamed RondevuService to Rondevu as single main entrypoint
- Integrated signaling methods directly into Rondevu class
- Updated service FQN format: service:version@username (colon instead of @)
- Added service discovery (direct, random, paginated)
- Removed high-level abstractions (ServiceHost, ServiceClient, RTCDurableConnection, EventBus, WebRTCContext, Bin)
- Updated RondevuAPI with new endpoint methods (offer-specific routes)
- Simplified types (moved Binnable to types.ts, removed connection types)
- Updated RondevuSignaler to use Rondevu class
- Breaking changes: Complete API overhaul for simplicity

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

package-lock.json

@@ -1,12 +1,12 @@
 {
   "name": "@xtr-dev/rondevu-client",
-  "version": "0.12.0",
+  "version": "0.12.4",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "@xtr-dev/rondevu-client",
-      "version": "0.12.0",
+      "version": "0.12.4",
       "license": "MIT",
       "dependencies": {
         "@noble/ed25519": "^3.0.0",