feat: Implement draft version of the code execution app

packages/backend/src/apps/code/actions/index.js

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+import runJavascript from './run-javascript/index.js';
+
+export default [runJavascript];

packages/backend/src/apps/code/actions/run-javascript/index.js

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+import defineAction from '../../../../helpers/define-action.js';
+
+export default defineAction({
+  name: 'Run Javascript',
+  key: 'runJavascript',
+  description:
+    'Run browser Javascript code. You can not use NodeJS specific features and npm packages.',
+  arguments: [
+    {
+      label: 'Inputs',
+      key: 'inputs',
+      type: 'dynamic',
+      required: false,
+      description:
+        'To be able to use data from previous steps, you need to expose them as input entries. You can access these input values in your code by using the `inputs` argument.',
+      value: [
+        {
+          key: '',
+          value: '',
+        },
+      ],
+      fields: [
+        {
+          label: 'Key',
+          key: 'key',
+          type: 'string',
+          required: true,
+          variables: true,
+        },
+        {
+          label: 'Value',
+          key: 'value',
+          type: 'string',
+          required: true,
+          variables: true,
+        },
+      ],
+    },
+    {
+      label: 'Code Snippet',
+      key: 'codeSnippet',
+      type: 'string',
+      required: true,
+      variables: false,
+      value: 'const code = async (inputs) => { return true; };',
+    },
+  ],
+
+  async run($) {
+    const { inputs = [], codeSnippet } = $.step.parameters;
+
+    const ivm = (await import('isolated-vm')).default;
+    const isolate = new ivm.Isolate({ memoryLimit: 128 });
+
+    try {
+      const context = await isolate.createContext();
+
+      const externalData = new ivm.ExternalCopy(inputs).copyInto();
+
+      const compiledCodeSnippet = await isolate.compileScript(codeSnippet);
+
+      const codeRun = await compiledCodeSnippet.run(context);
+
+      const codeFunction = await context.global.get('code', {
+        reference: true,
+        promise: true,
+      });
+
+      const result = await codeFunction.apply(undefined, [externalData], {});
+
+      // const codeReturn = await outRef.copy();
+      const codeReturn = await result.copy();
+
+      // console.log(codeReturn);
+
+      $.setActionItem({ raw: { output: codeReturn } });
+    } finally {
+      isolate.dispose();
+    }
+  },
+});

packages/backend/src/apps/code/assets/favicon.svg

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+<svg xmlns="http://www.w3.org/2000/svg" width="800px" height="800px" viewBox="0 0 512 512">
+  <polyline points="160 368 32 256 160 144" style="fill:none;stroke:#000000;stroke-linecap:round;stroke-linejoin:round;stroke-width:32px"/>
+  <polyline points="352 368 480 256 352 144" style="fill:none;stroke:#000000;stroke-linecap:round;stroke-linejoin:round;stroke-width:32px"/>
+  <line x1="304" y1="96" x2="208" y2="416" style="fill:none;stroke:#000000;stroke-linecap:round;stroke-linejoin:round;stroke-width:32px"/>
+</svg>

packages/backend/src/apps/code/index.js

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+import defineApp from '../../helpers/define-app.js';
+import actions from './actions/index.js';
+
+export default defineApp({
+  name: 'Code',
+  key: 'code',
+  baseUrl: '',
+  apiBaseUrl: '',
+  iconUrl: '{BASE_URL}/apps/code/assets/favicon.svg',
+  authDocUrl: '{DOCS_URL}/apps/code/connection',
+  primaryColor: '000000',
+  supportsConnections: false,
+  actions,
+});