fix: AU_MAIN_TYPE, TCP companion, GitHub Releases publishing

- CMakeLists: AU_MAIN_TYPE kAudioUnitType_Effect (was "aufx" — broke AU build)
- CompanionLink.mm: switch from Unix socket to TCP:59812 (matches companion)
- WaterMorphCompanion.swift: fix WKUserContentController API (add vs addScriptMessageHandler)
- CI: add GitHub Release publishing (tag=latest) for Mac .pkg and Windows .exe
  URLs: /releases/latest/download/Water_Morph_1.0.0_macOS.pkg
        /releases/latest/download/Water_Morph_1.0.0_Windows.exe

Author: grauxmusic

.github/workflows/build-plugin.yml

@@ -9,8 +9,12 @@ on:
       - 'CMakeLists.txt'
       - '.github/workflows/build-plugin.yml'
       - 'CompanionWin/**'
+      - 'Companion/**'
   workflow_dispatch:
 
+permissions:
+  contents: write
+
 jobs:
   # ── Mac (AU + VST3, Universal) ─────────────────────────────────────────────
   build-mac:
@@ -58,6 +62,15 @@ jobs:
           path: Water_Morph_1.0.0_macOS.pkg
           retention-days: 14
 
+      - name: Publish Mac to GitHub Release
+        uses: softprops/action-gh-release@v2
+        with:
+          tag_name: latest
+          name: "Water Morph — Latest Build"
+          prerelease: true
+          make_latest: true
+          files: Water_Morph_1.0.0_macOS.pkg
+
   # ── Windows (VST3, x64) ────────────────────────────────────────────────────
   build-windows:
     runs-on: windows-2022
@@ -128,3 +141,12 @@ jobs:
           name: Water_Morph_1.0.0_Windows
           path: CompanionWin/dist/*.exe
           retention-days: 14
+
+      - name: Publish Windows to GitHub Release
+        uses: softprops/action-gh-release@v2
+        with:
+          tag_name: latest
+          name: "Water Morph — Latest Build"
+          prerelease: true
+          make_latest: true
+          files: CompanionWin/dist/*.exe

CMakeLists.txt

@@ -26,7 +26,7 @@ juce_add_plugin(Morph
     EDITOR_WANTS_KEYBOARD_FOCUS TRUE
     DESCRIPTION                 "Water catalog browser and real-time morphing plugin"
     VST3_CATEGORIES             "Fx"
-    AU_MAIN_TYPE                "aufx"
+    AU_MAIN_TYPE                kAudioUnitType_Effect
 )
 
 juce_generate_juce_header(Morph)

Companion/WaterMorphCompanion.swift

@@ -1688,10 +1688,21 @@ final class WMWebLibraryVC: NSViewController, WKNavigationDelegate, WKScriptMess
 
     override func loadView() {
         let config = WKWebViewConfiguration()
-        config.userContentController.add(WKMessageProxy(self), name: "morphHover")
-        config.userContentController.add(WKMessageProxy(self), name: "morphSelect")
-        config.userContentController.add(WKMessageProxy(self), name: "morphCopy")
-        config.userContentController.add(WKMessageProxy(self), name: "morphPlayerState")
+        // Use the non-deprecated addScriptMessageHandler(_:contentWorld:name:) on macOS 11+.
+        // The legacy add(_:name:) overload was deprecated in macOS 14 (Sonoma) and triggers
+        // an internal WebKit precondition (EXC_BREAKPOINT) on macOS 14+ at call time.
+        let proxy = WKMessageProxy(self)
+        if #available(macOS 11.0, *) {
+            config.userContentController.add(proxy, contentWorld: .page, name: "morphHover")
+            config.userContentController.add(proxy, contentWorld: .page, name: "morphSelect")
+            config.userContentController.add(proxy, contentWorld: .page, name: "morphCopy")
+            config.userContentController.add(proxy, contentWorld: .page, name: "morphPlayerState")
+        } else {
+            config.userContentController.add(proxy, name: "morphHover")
+            config.userContentController.add(proxy, name: "morphSelect")
+            config.userContentController.add(proxy, name: "morphCopy")
+            config.userContentController.add(proxy, name: "morphPlayerState")
+        }
         // Auth UserScript is injected dynamically in loadWebUI() so it always
         // uses the latest (possibly refreshed) tokens, never a stale snapshot.
 
@@ -2032,6 +2043,18 @@ final class WMWebLibraryVC: NSViewController, WKNavigationDelegate, WKScriptMess
 
     deinit {
         webView?.removeObserver(self, forKeyPath: #keyPath(WKWebView.url))
+        // Remove message handlers to break the WebKit internal retain and avoid
+        // the "handler removed while still registered" assertion on dealloc.
+        let uc = webView?.configuration.userContentController
+        if #available(macOS 11.0, *) {
+            for name in ["morphHover", "morphSelect", "morphCopy", "morphPlayerState"] {
+                uc?.removeScriptMessageHandler(forName: name, contentWorld: .page)
+            }
+        } else {
+            for name in ["morphHover", "morphSelect", "morphCopy", "morphPlayerState"] {
+                uc?.removeScriptMessageHandler(forName: name)
+            }
+        }
     }
 
     override func observeValue(forKeyPath keyPath: String?, of object: Any?,

Source/CompanionLink.mm

@@ -1,11 +1,12 @@
 #import <Cocoa/Cocoa.h>
 #include "CompanionLink.h"
 #include <sys/socket.h>
-#include <sys/un.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
 #include <unistd.h>
 
-static constexpr const char* kSocketPath = "/tmp/water-morph.sock";
-static constexpr int         kTimeoutMs  = 3000;
+static constexpr uint16_t kTCPPort  = 59812;
+static constexpr int      kTimeoutMs = 3000;
 
 //==============================================================================
 CompanionLink& CompanionLink::get()
@@ -44,13 +45,13 @@
 {
     disconnect();
 
-    int fd = socket (AF_UNIX, SOCK_STREAM, 0);
+    int fd = socket (AF_INET, SOCK_STREAM, 0);
     if (fd < 0) return false;
 
-    // Non-blocking connect with a short timeout
-    struct sockaddr_un addr = {};
-    addr.sun_family = AF_UNIX;
-    strlcpy (addr.sun_path, kSocketPath, sizeof (addr.sun_path));
+    struct sockaddr_in addr = {};
+    addr.sin_family      = AF_INET;
+    addr.sin_port        = htons (kTCPPort);
+    addr.sin_addr.s_addr = htonl (INADDR_LOOPBACK);
 
     if (::connect (fd, (struct sockaddr*) &addr, sizeof (addr)) < 0)
     {