feat: VST FX rack per-track + masterbus render via native_bridge

native_bridge/src/main.cpp

@@ -6,6 +6,7 @@
 #include "NativeInstrumentEngine.h"
 #include "StateStore.h"
 #include "RenderJob.h"
+#include "RenderFxJob.h"
 
 #ifdef _WIN32
 #include <windows.h>
@@ -614,6 +615,29 @@ int main(int argc, char* argv[]) {
         return run_render_job(renderJob, renderOut);
     }
 
+    // --render-fx <job.json> --in <input.wav> --out <output.wav>: one-shot
+    // offline FX render (VST3 effects + builtins), no SHM/loop.
+    std::string renderFxJob, renderFxIn, renderFxOut;
+    for (int i = 1; i < argc; ++i) {
+        if (std::strcmp(argv[i], "--render-fx") == 0 && i + 1 < argc) renderFxJob = argv[i + 1];
+        else if (std::strcmp(argv[i], "--in") == 0 && i + 1 < argc) renderFxIn = argv[i + 1];
+        else if (std::strcmp(argv[i], "--out") == 0 && i + 1 < argc) renderFxOut = argv[i + 1];
+    }
+    if (!renderFxJob.empty()) {
+        if (renderFxIn.empty() || renderFxOut.empty()) {
+            std::cerr << "[RenderFxJob] --render-fx requires --in <input.wav> --out <output.wav>" << std::endl;
+            return 1;
+        }
+        return run_render_fx_job(renderFxJob, renderFxIn, renderFxOut);
+    }
+
+    // --scan <dir>: one-shot plugin scan, no SHM/loop.
+    std::string scanDir;
+    for (int i = 1; i + 1 < argc; ++i) {
+        if (std::strcmp(argv[i], "--scan") == 0) scanDir = argv[i + 1];
+    }
+    if (!scanDir.empty()) return run_scan_dir(scanDir);
+
     // 1. Shared memory name: argv --shm <name> | env SF_SHM_NAME | default
     std::string shmName = "SonicForge_DAW_IPC";
     for (int i = 1; i + 1 < argc; ++i) {