docs: add dedicated ClawHub docs tab (#79159)

* docs: add clawhub docs tab

* fix: satisfy docs sync lint

* docs: prune internal clawhub nav pages

* docs: include ClawHub publishing page in nav

* docs: use clawhub how-it-works route

docs/tools/plugin.md

@@ -13,7 +13,7 @@ agent harnesses, tools, skills, speech, realtime transcription, realtime
 voice, media-understanding, image generation, video generation, web fetch, web
 search, and more. Some plugins are **core** (shipped with OpenClaw), others
 are **external**. Most external plugins are published and discovered through
-[ClawHub](/tools/clawhub). Npm remains supported for direct installs and for a
+[ClawHub](/clawhub). Npm remains supported for direct installs and for a
 temporary set of OpenClaw-owned plugin packages while that migration finishes.
 
 ## Quick start
@@ -279,7 +279,7 @@ current OpenClaw or a local checkout until a newer npm package is published.
   </Accordion>
 </AccordionGroup>
 
-Looking for third-party plugins? See [Community Plugins](/plugins/community).
+Looking for third-party plugins? See [ClawHub](/clawhub).
 
 ## Configuration
 
@@ -728,4 +728,4 @@ For full typed hook behavior, see [SDK overview](/plugins/sdk-overview#hook-deci
 - [Plugin manifest](/plugins/manifest) - manifest schema
 - [Registering tools](/plugins/building-plugins#registering-agent-tools) - add agent tools in a plugin
 - [Plugin internals](/plugins/architecture) - capability model and load pipeline
-- [Community plugins](/plugins/community) - third-party listings
+- [ClawHub](/clawhub) - third-party plugin discovery