docs: update examples.json index with session management showcase

Adds the session management workflows example to the showcase index.

---
Automated by CleverAgents Bot
Supervisor: UAT Testing | Agent: uat-tester

docs/showcase/examples.json

@@ -68,6 +68,33 @@
       "educational_value": "high",
       "generated_by": "uat-tester",
       "generated_at": "2026-04-07"
+    },
+    {
+      "title": "Managing Conversation Sessions with the CleverAgents CLI",
+      "category": "cli-tools",
+      "path": "cli-tools/session-management-workflows.md",
+      "feature": "Session management workflows",
+      "commands": [
+        "agents session --help",
+        "agents session create",
+        "agents session create --actor openai/gpt-4o",
+        "agents session create --actor openai/gpt-4o --format json",
+        "agents session list",
+        "agents session list --format json",
+        "agents session tell --session <ID> \"<prompt>\"",
+        "agents session tell --session <ID> --actor anthropic/claude-sonnet-4-20250514 \"<prompt>\"",
+        "agents session tell --session <ID> --stream \"<prompt>\"",
+        "agents session show <ID>",
+        "agents session show <ID> --format json",
+        "agents session export --output /tmp/backup.json <ID>",
+        "agents session export --format md --output /tmp/transcript.md <ID>",
+        "agents session import --input /tmp/backup.json",
+        "agents session delete --yes <ID>"
+      ],
+      "complexity": "intermediate",
+      "educational_value": "high",
+      "generated_by": "uat-tester",
+      "generated_at": "2026-04-07"
     }
   ],
   "categories": {
@@ -92,5 +119,5 @@
       "keywords": ["test", "pytest", "behave", "unittest", "automation", "QA"]
     }
   },
-  "last_updated": null
+  "last_updated": "2026-04-07"
 }