Update SYNC.md — out-of-process rebuild pushed, ready for build test

SYNC.md

@@ -8,20 +8,18 @@
 **Your ENTIRE job is these commands:**
 ```bash
 cd ~/pluginbridge && git pull
-cd build && cmake --build . --config Release 2>&1 | tail -20
+rm -rf build && mkdir build && cd build
+cmake .. -DCMAKE_C_COMPILER=/usr/bin/cc -DCMAKE_CXX_COMPILER=/usr/bin/c++
+cmake --build . --config Release 2>&1 | tail -30
 ```
 
 **If build succeeds:** Reply "✅ build ok" — nothing else.
 
-**If build fails:** Reply with ONLY:
+**If build fails:** Reply with ONLY the first 3 errors:
 ```
 ❌ [filename]:[line] — [one-line error message]
 ```
 
-**If Ableton test needed:** load plugin, report pass/fail one-liner.
-
----
-
 ## DO NOT:
 - Explain errors
 - Suggest fixes
@@ -29,7 +27,7 @@ cd build && cmake --build . --config Release 2>&1 | tail -20
 - Add commentary
 
 ## Status
-**Last push:** 2026-05-16 — Sprint 2 COMPLETE
-**What's new:** HostedPluginManager (load VST3/AU, enumerate params, route audio), Editor with Load Plugin button, McpServer wired to real plugin params
-**Action needed:** pull and build
-**Test after build:** Load in Ableton → click Load Plugin → select Pro-Q 4.vst3 → curl /health to see param count
+**Last push:** 2026-05-16 — MAJOR REBUILD: Out-of-process plugin hosting
+**What's new:** Complete rewrite — plugin now runs in separate helper process (crash-safe). Two build targets: PluginBridge.vst3 + PluginBridgeHelper executable.
+**File structure changed:** Old Source/*.cpp files deleted. New structure: Source/Plugin/, Source/Helper/, Source/Shared/
+**Action needed:** MUST rm -rf build and reconfigure (cmake ..) before building