Chore/Update issue templates and add new tools (#4687)

* Enhancement: Update issue templates and add new tools

- Updated bug report template to include a default label of 'bug'.
- Updated feature request template to include a default label of 'enhancement'.
- Added new credential class for Agentflow API.
- Enhanced Agent and HTTP nodes to improve tool management and error handling.
- Added deprecation badges to several agent and chain classes.
- Introduced new tools for handling requests (GET, POST, DELETE, PUT) with improved error handling.
- Added new chatflows and agentflows for various use cases, including document QnA and translation.
- Updated UI components for better handling of agent flows and marketplace interactions.
- Refactored utility functions for improved functionality and clarity.

* Refactor: Remove beta badge and streamline template title assignment

- Removed the 'BETA' badge from the ExtractMetadataRetriever class.
- Simplified the title assignment in the agentflowv2 generator by using a variable instead of inline string manipulation.

packages/components/nodes/agentflow/LLM/LLM.ts

@@ -262,6 +262,7 @@ class LLM_Agentflow implements INode {
 }`,
                         description: 'JSON schema for the structured output',
                         optional: true,
+                        hideCodeExecute: true,
                         show: {
                             'llmStructuredOutput[$index].type': 'jsonArray'
                         }
@@ -486,8 +487,15 @@ class LLM_Agentflow implements INode {
             }
 
             // Prepare final response and output object
-            const finalResponse = (response.content as string) ?? JSON.stringify(response, null, 2)
-            const output = this.prepareOutputObject(response, finalResponse, startTime, endTime, timeDelta)
+            let finalResponse = ''
+            if (response.content && Array.isArray(response.content)) {
+                finalResponse = response.content.map((item: any) => item.text).join('\n')
+            } else if (response.content && typeof response.content === 'string') {
+                finalResponse = response.content
+            } else {
+                finalResponse = JSON.stringify(response, null, 2)
+            }
+            const output = this.prepareOutputObject(response, finalResponse, startTime, endTime, timeDelta, isStructuredOutput)
 
             // End analytics tracking
             if (analyticHandlers && llmIds) {
@@ -853,7 +861,8 @@ class LLM_Agentflow implements INode {
         finalResponse: string,
         startTime: number,
         endTime: number,
-        timeDelta: number
+        timeDelta: number,
+        isStructuredOutput: boolean
     ): any {
         const output: any = {
             content: finalResponse,
@@ -872,6 +881,15 @@ class LLM_Agentflow implements INode {
             output.usageMetadata = response.usage_metadata
         }
 
+        if (isStructuredOutput && typeof response === 'object') {
+            const structuredOutput = response as Record<string, any>
+            for (const key in structuredOutput) {
+                if (structuredOutput[key]) {
+                    output[key] = structuredOutput[key]
+                }
+            }
+        }
+
         return output
     }