Feature/agentflow v2 (#4298)

* agent flow v2

* chat message background

* conditon agent flow

* add sticky note

* update human input dynamic prompt

* add HTTP node

* add default tool icon

* fix export duplicate agentflow v2

* add agentflow v2 marketplaces

* refractor memoization, add iteration nodes

* add agentflow v2 templates

* add agentflow generator

* add migration scripts for mysql, mariadb, posrgres and fix date filters for executions

* update agentflow chat history config

* fix get all flows error after deletion and rename

* add previous nodes from parent node

* update generator prompt

* update run time state when using iteration nodes

* prevent looping connection, prevent duplication of start node, add executeflow node, add nodes agentflow, chat history variable

* update embed

* convert form input to string

* bump openai version

* add react rewards

* add prompt generator to prediction queue

* add array schema to overrideconfig

* UI touchup

* update embedded chat version

* fix node info dialog

* update start node and loop default iteration

* update UI fixes for agentflow v2

* fix async drop down

* add export import to agentflowsv2, executions, fix UI bugs

* add default empty object to flowlisttable

* add ability to share trace link publicly, allow MCP tool use for Agent and Assistant

* add runtime message length to variable, display conditions on UI

* fix array validation

* add ability to add knowledge from vector store and embeddings for agent

* add agent tool require human input

* add ephemeral memory to start node

* update agent flow node to show vs and embeddings icons

* feat: add import chat data functionality for AgentFlowV2

* feat: set chatMessage.executionId to null if not found in import JSON file or database

* fix: MariaDB execution migration script to utf8mb4_unicode_520_ci

---------

Co-authored-by: Ong Chung Yau <33013947+chungyau97@users.noreply.github.com>
Co-authored-by: chungyau97 <chungyau97@gmail.com>

packages/components/credentials/HTTPBearerToken.credential.ts

@@ -0,0 +1,23 @@
+import { INodeParams, INodeCredential } from '../src/Interface'
+
+class HTTPBearerTokenCredential implements INodeCredential {
+    label: string
+    name: string
+    version: number
+    inputs: INodeParams[]
+
+    constructor() {
+        this.label = 'HTTP Bearer Token'
+        this.name = 'httpBearerToken'
+        this.version = 1.0
+        this.inputs = [
+            {
+                label: 'Token',
+                name: 'token',
+                type: 'password'
+            }
+        ]
+    }
+}
+
+module.exports = { credClass: HTTPBearerTokenCredential }