### Summary
In OpenClaw `<= 2026.2.24`, Discord direct-message reaction notifications did not consistently apply the same DM authorization checks (`dmPolicy` / `allowFrom`) that are enforced for normal DM message ingress.

In restrictive DM setups, a non-allowlisted Discord user who can react to a bot-authored DM message could still enqueue a reaction-derived system event in the session.

This is a reaction-only ingress inconsistency. By itself it does not directly execute commands; practical impact depends on downstream automation/tool policy.

### Details
The DM message path already enforces `dmPolicy`/`allowFrom` authorization, but the DM reaction-notification path previously allowed event enqueue under reaction mode checks without that same authorization gate.

Fix in `main` aligns reaction ingress with normal message preflight for Discord DM/group-DM/guild policy boundaries and applies equivalent DM reaction authorization hardening for Slack to keep channel behavior consistent.

### Affected Packages / Versions
- `npm` package: `openclaw`
- Affected: `<= 2026.2.24`
- Patched: `>= 2026.2.25`

### Fix Commit(s)
- `aedf62ac7e669a89c7b299201bf6537dc6b12e0e`

### Release Process Note
`patched_versions` is pre-set to the release (`2026.2.25`) so after npm release the advisory is published.

Thanks @tdjackey for reporting.

CWE-863 Incorrect Authorization