feat(05-02): add scriptTargets filtering and Back button to ReviewStep

- Destructure dispatch from useWizard() alongside state
- Derive showIntune and showRmm booleans from state.deployment.scriptTargets
- Conditionally unmount Intune OutputBlocks (showIntune) and RMM OutputBlock (showRmm)
- rclone.conf OutputBlock always rendered regardless of scriptTargets
- handleDownloadZip builds files array dynamically — filters by showIntune/showRmm
- Add Back button dispatching SET_STEP(2) following DeploymentStep pattern
- All 15 ReviewStep tests green including new TECH-01 and TECH-02 cases

src/components/wizard/ReviewStep.tsx

@@ -15,7 +15,7 @@ import { downloadZip } from '../../utils/downloadZip';
 const PLACEHOLDER = '# Fill in the wizard steps to generate your rclone.conf';
 
 export function ReviewStep() {
-  const { state } = useWizard();
+  const { state, dispatch } = useWizard();
   const [acknowledged, setAcknowledged] = useState(false);
 
   // CONF-02: live preview — updates on every state change
@@ -51,17 +51,22 @@ export function ReviewStep() {
     }
   }, [state]);
 
-  // DOWN-05: ZIP bundle — always include all 4 files
+  const showIntune = state.deployment.scriptTargets.includes('intune');
+  const showRmm = state.deployment.scriptTargets.includes('rmm');
+
+  // DOWN-05: ZIP bundle — filtered by scriptTargets (TECH-01)
   async function handleDownloadZip() {
-    await downloadZip(
-      [
-        { name: 'rclone.conf', content: rcloneConf },
-        { name: 'intune-install.ps1', content: intuneInstall },
-        { name: 'intune-detection.ps1', content: intuneDetection },
-        { name: 'rmm-script.ps1', content: rmmScript },
-      ],
-      'rclone-deployment.zip'
-    );
+    const files: { name: string; content: string }[] = [
+      { name: 'rclone.conf', content: rcloneConf },
+    ];
+    if (showIntune) {
+      files.push({ name: 'intune-install.ps1', content: intuneInstall });
+      files.push({ name: 'intune-detection.ps1', content: intuneDetection });
+    }
+    if (showRmm) {
+      files.push({ name: 'rmm-script.ps1', content: rmmScript });
+    }
+    await downloadZip(files, 'rclone-deployment.zip');
   }
 
   return (
@@ -93,24 +98,41 @@ export function ReviewStep() {
         filename="rclone.conf"
         disabled={!acknowledged}
       />
-      <OutputBlock
-        label="Intune Install Script"
-        content={intuneInstall}
-        filename="intune-install.ps1"
-        disabled={!acknowledged}
-      />
-      <OutputBlock
-        label="Intune Detection Script"
-        content={intuneDetection}
-        filename="intune-detection.ps1"
-        disabled={!acknowledged}
-      />
-      <OutputBlock
-        label="RMM Script"
-        content={rmmScript}
-        filename="rmm-script.ps1"
-        disabled={!acknowledged}
-      />
+      {showIntune && (
+        <OutputBlock
+          label="Intune Install Script"
+          content={intuneInstall}
+          filename="intune-install.ps1"
+          disabled={!acknowledged}
+        />
+      )}
+      {showIntune && (
+        <OutputBlock
+          label="Intune Detection Script"
+          content={intuneDetection}
+          filename="intune-detection.ps1"
+          disabled={!acknowledged}
+        />
+      )}
+      {showRmm && (
+        <OutputBlock
+          label="RMM Script"
+          content={rmmScript}
+          filename="rmm-script.ps1"
+          disabled={!acknowledged}
+        />
+      )}
+
+      {/* TECH-02: Back button — dispatches SET_STEP(2) */}
+      <div className="flex gap-3 mt-6">
+        <button
+          type="button"
+          onClick={() => dispatch({ type: 'SET_STEP', payload: 2 })}
+          className="px-4 py-2 text-sm border border-gray-300 rounded-md hover:bg-gray-50"
+        >
+          Back
+        </button>
+      </div>
 
       {/* DOWN-05: ZIP bundle */}
       <button