fix: tighten WhatsApp ack reactions and migrate config (#629) (thanks @pasogott)

docs/providers/whatsapp.md

@@ -206,6 +206,7 @@ WhatsApp can automatically send emoji reactions to incoming messages immediately
 - In groups with `requireMention: false` (activation: always), `group: "mentions"` will react to all messages (not just @mentions).
 - Fire-and-forget: reaction failures are logged but don't prevent the bot from replying.
 - Participant JID is automatically included for group reactions.
+- WhatsApp ignores `messages.ackReaction`; use `whatsapp.ackReaction` instead.
 
 ## Agent tool (reactions)
 - Tool: `whatsapp` with `react` action (`chatJid`, `messageId`, `emoji`, optional `remove`).

docs/tools/slash-commands.md

@@ -40,8 +40,10 @@ Directives (`/think`, `/verbose`, `/reasoning`, `/elevated`) are parsed even whe
 Text + native (when enabled):
 - `/help`
 - `/commands`
-- `/status` (show current status; includes a short usage line when available; alias: `/usage`)
-- `/whoami` (show your sender id; alias: `/id`)
+- `/status`
+- `/status` (show current status; includes a short usage line when available)
+- `/usage` (alias: `/status`)
+- `/whoami` (alias: `/id`)
 - `/config show|get|set|unset` (persist config to disk, owner-only; requires `commands.config: true`)
 - `/debug show|set|unset|reset` (runtime overrides, owner-only; requires `commands.debug: true`)
 - `/cost on|off` (toggle per-response usage line)