feat(web): initialize Next.js project with Tailwind CSS and TypeScript setup

pkg/models/execution.go

@@ -0,0 +1,16 @@
+package models
+
+// Item is a single data item flowing between nodes.
+type Item = map[string]any
+
+// NodeOutput holds the outputs of a single node, keyed by output index.
+type NodeOutput = map[int][]Item
+
+// ExecutionResult is the final result of a workflow execution.
+type ExecutionResult struct {
+	ExecutionID string                    `json:"execution_id"`
+	Status      string                    `json:"status"`
+	Outputs     map[string]map[int][]Item `json:"outputs"`
+	NodeOutputs map[string]map[int][]Item `json:"node_outputs"`
+	Errors      []string                  `json:"errors"`
+}