Merge duplicate Agents sections in toc.yml

Co-authored-by: Copilot <[email protected]>

Author: leijgao

articles/microsoft-discovery/toc.yml

@@ -102,6 +102,12 @@ items:
           - name: Write effective prompts for agents
             href: how-to-prompt-engineering.md
             displayName: Microsoft Discovery, prompt engineering, agent instructions, GPT-5, few-shot, scientific research
+          - name: Data handling with tools and agents
+            href: how-to-data-handling-with-tools-agents.md
+            displayName: Microsoft Discovery, data handling, tools, agents, virtual paths, data assets, mounts, promotion
+          - name: Enable diagnostic logging and auditing
+            href: how-to-enable-diagnostic-logging.md
+            displayName: Microsoft Discovery, diagnostic logging, auditing, CMK, encryption at rest, Key Vault
       - name: Network Security & Data Protection
         items:
           - name: Configure network security
@@ -130,11 +136,3 @@ items:
           - name: Create a tool definition
             href: how-to-create-tool-definition.md
             displayName: Microsoft Discovery, tool definition, YAML, actions, code environment, compute, infra
-      - name: Agents
-        items:
-          - name: Data handling with tools and agents
-            href: how-to-data-handling-with-tools-agents.md
-            displayName: Microsoft Discovery, data handling, tools, agents, virtual paths, data assets, mounts, promotion
-          - name: Enable diagnostic logging and auditing
-            href: how-to-enable-diagnostic-logging.md
-            displayName: Microsoft Discovery, diagnostic logging, auditing, CMK, encryption at rest, Key Vault