Bug Report: memory-core Dreaming Cleanup Fails

Summary

The memory-core plugin's dreaming feature successfully writes dream diary entries, but fails to clean up narrative sessions due to a missing RBAC scope (operator.admin).

Environment

• OpenClaw Version: 2026.4.14 (commit after 2026.3.31)
• OS: Windows 11 (NT 10.0.26200 x64)
• Node: v24.14.1
• Agent: data (workspace: D:\Openclaw\workspace-data)

Steps to Reproduce

1. Configure memory-core plugin with dreaming enabled:

{
  "memory-core": {
    "enabled": true,
    "config": {
      "dreaming": {
        "enabled": true,
        "frequency": "0 3 * * *",
        "timezone": "Asia/Singapore"
      }
    }
  }
}

2. Wait for the cron job to fire at 03:00 Asia/Singapore
3. Observe gateway logs

Expected Behavior

• Dream diary entries are written (works)
• Narrative session cleanup completes successfully (fails)

Actual Behavior

Gateway logs show:

03:21:17 [plugins] memory-core: dream diary entry written for light phase [workspace=D:\Openclaw\workspace-data].
03:21:17 [plugins] memory-core: narrative session cleanup failed for light phase: missing scope: operator.admin
03:21:55 [plugins] memory-core: dream diary entry written for rem phase [workspace=D:\Openclaw\workspace-data].
03:21:55 [plugins] memory-core: narrative session cleanup failed for rem phase: missing scope: operator.admin

Analysis

• Diary writing: Works fine (data is not lost)
• Session cleanup: Fails because the dreaming module does not have the required operator.admin RBAC scope to delete/archive sessions
• This appears to be a regression introduced by the 3.31 security framework (RBAC scopes for session management)

Impact

Suggested Fix

The dreaming module should either:

1. Request the operator.admin scope when performing session cleanup
2. Use a different mechanism (e.g., self-cleanup via its own session context)
3. Skip cleanup when the scope is not available (graceful degradation)

Config Reference

Full memory-core config:

{
  "memory-core": {
    "enabled": true,
    "config": {
      "dreaming": {
        "enabled": true,
        "frequency": "0 3 * * *",
        "timezone": "Asia/Singapore",
        "verboseLogging": false,
        "storage": {
          "mode": "inline",
          "separateReports": false
        }
      }
    }
  }
}