Feature/seq agents (#2798)

* update build functions

* sequential agents

* update langchain to 0.2, added sequential agent nodes

* add marketplace templates

* update howto wordings

* Merge branch 'main' into feature/Seq-Agents

# Conflicts:
#	pnpm-lock.yaml

* update deprecated functions and add new sequential nodes

* add marketplace templates

* update marketplace templates, add structured output to llm node

* add multi agents template

* update llm node with bindmodels

* update cypress version

* update templates sticky note wordings

* update tool node to include human in loop action

* update structured outputs error from models

* update cohere package to resolve google genai pipeThrough bug

* update mistral package version, added message reconstruction before invoke seq agent

* add HITL to agent

* update state messages restructuring

* update load and split methods for s3 directory

packages/components/nodes/sequentialagents/End/End.ts

@@ -0,0 +1,54 @@
+import { END } from '@langchain/langgraph'
+import { INode, INodeData, INodeParams, ISeqAgentNode } from '../../../src/Interface'
+
+class End_SeqAgents implements INode {
+    label: string
+    name: string
+    version: number
+    description: string
+    type: string
+    icon: string
+    category: string
+    baseClasses: string[]
+    credential: INodeParams
+    inputs: INodeParams[]
+    hideOutput: boolean
+
+    constructor() {
+        this.label = 'End'
+        this.name = 'seqEnd'
+        this.version = 1.0
+        this.type = 'End'
+        this.icon = 'end.svg'
+        this.category = 'Sequential Agents'
+        this.description = 'End conversation'
+        this.baseClasses = [this.type]
+        this.inputs = [
+            {
+                label: 'Start | Agent | LLM | Tool Node',
+                name: 'sequentialNode',
+                type: 'Start | Agent | LLMNode | ToolNode'
+            }
+        ]
+        this.hideOutput = true
+    }
+
+    async init(nodeData: INodeData): Promise<any> {
+        const sequentialNode = nodeData.inputs?.sequentialNode as ISeqAgentNode
+        if (!sequentialNode) throw new Error('End must have a predecessor!')
+
+        const returnOutput: ISeqAgentNode = {
+            id: nodeData.id,
+            node: END,
+            name: END,
+            label: END,
+            type: 'end',
+            output: END,
+            predecessorAgents: [sequentialNode]
+        }
+
+        return returnOutput
+    }
+}
+
+module.exports = { nodeClass: End_SeqAgents }

packages/components/nodes/sequentialagents/End/end.svg

@@ -0,0 +1 @@
+<svg  xmlns="http://www.w3.org/2000/svg"  width="24"  height="24"  viewBox="0 0 24 24"  fill="none"  stroke="currentColor"  stroke-width="2"  stroke-linecap="round"  stroke-linejoin="round"  class="icon icon-tabler icons-tabler-outline icon-tabler-player-stop"><path stroke="none" d="M0 0h24v24H0z" fill="none"/><path d="M5 5m0 2a2 2 0 0 1 2 -2h10a2 2 0 0 1 2 2v10a2 2 0 0 1 -2 2h-10a2 2 0 0 1 -2 -2z" /></svg>