fix(scan): launch AE with the project as arg to bypass the Home screen

afterfx -r alone leaves AE on its empty Home/Start screen, which blocks the
script from running (AE sits idle on Untitled Project until the scan times out).
Now launch 'afterfx <aep> -r scan.jsx' so the project opens directly; scan.jsx
uses the already-open project and only app.open()s as a fallback.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

services/node-agent/internal/runner/scan.jsx

@@ -223,7 +223,13 @@
         // real project never hangs the headless scan waiting for a click.
         try { app.beginSuppressDialogs(); } catch (e) {}
         try { app.preferences.savePrefAsLong("Misc Section", "Play sound when render finishes", 0, PREFType.PREF_Type_MACHINE_INDEPENDENT); } catch (e) {}
-        if (aepPath) app.open(new File(aepPath));
+        // AE is usually launched WITH the project as an argument (so the Home screen
+        // can't block us); only open it ourselves if nothing is loaded yet.
+        var hasProject = false;
+        try { hasProject = !!(app.project && app.project.file); } catch (e) {}
+        if (!hasProject && aepPath) {
+            try { app.open(new File(aepPath)); } catch (e) {}
+        }
         var proj = app.project;
 
         var result = (mode === "fix" || mode === "musicvisualizer") ? scanFix(proj) : scanFlexible(proj);