build(plugins): externalize acpx release packages

docs/gateway/configuration-reference.md

@@ -1016,7 +1016,7 @@ Notes:
 - `enabled`: global ACP feature gate (default: `true`; set `false` to hide ACP dispatch and spawn affordances).
 - `dispatch.enabled`: independent gate for ACP session turn dispatch (default: `true`). Set `false` to keep ACP commands available while blocking execution.
 - `backend`: default ACP runtime backend id (must match a registered ACP runtime plugin).
-  If `plugins.allow` is set, include the backend plugin id (for example `acpx`) or the bundled default plugin will not load.
+  Install the backend plugin first, and if `plugins.allow` is set, include the backend plugin id (for example `acpx`) or the ACP backend will not load.
 - `defaultAgent`: fallback ACP target agent id when spawns do not specify an explicit target.
 - `allowedAgents`: allowlist of agent ids permitted for ACP runtime sessions; empty means no additional restriction.
 - `maxConcurrentSessions`: maximum concurrently active ACP sessions.

docs/gateway/opentelemetry.md

@@ -7,7 +7,7 @@ read_when:
   - You need the exact metric names, span names, or attribute shapes to build dashboards or alerts
 ---
 
-OpenClaw exports diagnostics through the bundled `diagnostics-otel` plugin
+OpenClaw exports diagnostics through the official `diagnostics-otel` plugin
 using **OTLP/HTTP (protobuf)**. Any collector or backend that accepts OTLP/HTTP
 works without code changes. For local file logs and how to read them, see
 [Logging](/logging).
@@ -27,6 +27,12 @@ works without code changes. For local file logs and how to read them, see
 
 ## Quick start
 
+For packaged installs, install the plugin first:
+
+```bash
+openclaw plugins install @openclaw/diagnostics-otel
+```
+
 ```json5
 {
   plugins: {