feat: using programstore

ref: N25B-399

src/pages/VisProgPage/VisProg.tsx

@@ -181,21 +181,23 @@ function graphReducer() {
  */
 function VisProgPage() {
   const [showSimpleProgram, setShowSimpleProgram] = useState(false);
-  const [phases, setPhases] = useState<any[]>([]);
+  const setProgramState = useProgramStore((state) => state.setProgramState);
 
   const runProgram = () => {
-    const reducedPhases = graphReducer();
-    setPhases(reducedPhases);
-    setShowSimpleProgram(true);
-    runProgramm();
+    const phases = graphReducer();       // reduce graph
+    setProgramState({ phases });          // <-- save to store
+    setShowSimpleProgram(true);          // show SimpleProgram
+    runProgramm();                        // send to backend if needed
   };
 
   if (showSimpleProgram) {
     return (
-      <SimpleProgram
-        phases={phases}
-
-      />
+    <div>
+      <button onClick={() => setShowSimpleProgram(false)}>
+        Back to Editor ◀ 
+      </button>
+      <SimpleProgram/>
+    </div>
     );
   }