chore: add AGENTS.md for opencode agents

AGENTS.md

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+# Agents
+
+This role configures VMware Log Insight Agent (now VMware Aria Operations for Logs).
+
+## Role Analysis
+
+- **Type**: Monitoring/logging agent role
+- **OS Support**: Linux (generic)
+- **Deployment Method**: Direct (agent installation)
+- **Scope**: Log forwarding agent
+
+## Tasks
+
+1. **install** - Installs the log forwarder agent
+2. **tmpfs** - Configures tmpfs for log buffering
+3. **config** - Configures log forwarding
+
+## Testing
+
+```bash
+ansible-lint
+molecule test
+```