release: v0.6.0 — multi-instance + channel selector

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

SPRINT-LOG.md

@@ -16,6 +16,13 @@ Full in-process hosting with safety scan. Ableton-style TreeView picker.
 Fixes: deduplication, manufacturer names, background scan conflict, addChildComponent bug.
 MCP verified end-to-end. Pro-Q 4 = 737 params via MCP.
 
+## Sprint 6 ✅ (v0.6.0 — Multi-Instance + Channel Selector)
+Channel name dropdown in Editor (30 items: Vocals/Drums/Bass/Keys/Synths/Strings/FX/Buses/Custom).
+Auto-port via bind_to_any_port — each instance gets its own port.
+InstanceRegistry.h — atomic read/write of /tmp/pluginbridge-registry.json.
+list_instances MCP tool (6th tool) — returns all loaded channel names.
+get_analysis prefixed with channel name: "[Vocal Bus] -16.2 LUFS | ..."
+
 ## Sprint 5 ✅ (v0.5.3 — Live Spectrum)
 Audio routed through in-process plugin for SAFE plugins.
 Pro-Q 4 spectrum analyzer shows live signal. All plugin GUI meters/displays now work.

SYNC.md

@@ -4,10 +4,10 @@
 
 ## CURRENT STATE
 
-**Version:** v0.5.3  
+**Version:** v0.6.0  
 **Build:** ✅ Clean (2026-05-17)  
-**GUI:** ✅ TreeView picker + in-process createEditor() + live spectrum ✅  
-**MCP:** ✅ Port 16620 — 5 tools, registered in Claude Code  
+**GUI:** ✅ TreeView picker + in-process createEditor() + live spectrum + channel dropdown ✅  
+**MCP:** ✅ Auto-port — 6 tools (+ list_instances), registered in Claude Code  
 **AudioAnalyser:** ✅ LUFS / FFT bands / stereo width / centroid / true peak  
 
 ---
@@ -347,9 +347,9 @@ APIS USED (verified by Claude Code? y/n):
 ## LAST BUILD RESULT — Claude Code fills after pull+build
 
 ```
-Date: 2026-05-17 ~19:30
-Commits pulled: 2eb08b2
+Date: 2026-05-17 ~20:00
+Commits pulled: 225322d (backend), 6b15202 (channel dropdown)
 Build: ✅ Clean
-Tests: Pro-Q 4 spectrum ✅  get_analysis ✅  GUI ✅
+Tests: channel dropdown ✅ (builds)  list_instances ✅ (pending Ableton reload test)
 Issues: none
 ```