feat: Implement get flows API endpoint

packages/backend/test/mocks/rest/api/v1/flows/get-flows.js

@@ -0,0 +1,36 @@
+const getFlowsMock = async (flows, steps) => {
+  const data = flows.map((flow) => {
+    const flowSteps = steps.filter((step) => step.flowId === flow.id);
+
+    return {
+      active: flow.active,
+      id: flow.id,
+      name: flow.name,
+      status: flow.active ? 'published' : 'draft',
+      steps: flowSteps.map((step) => ({
+        appKey: step.appKey,
+        iconUrl: step.iconUrl,
+        id: step.id,
+        key: step.key,
+        parameters: step.parameters,
+        position: step.position,
+        status: step.status,
+        type: step.type,
+        webhookUrl: step.webhookUrl,
+      })),
+    };
+  });
+
+  return {
+    data: data,
+    meta: {
+      count: data.length,
+      currentPage: 1,
+      isArray: true,
+      totalPages: 1,
+      type: 'Flow',
+    },
+  };
+};
+
+export default getFlowsMock;