feat: unify docs portal and MCP servers into one config-driven service

- add config.yml as single source of truth for collected repos/categories
- add collect.py CLI to pull lib/api/wiki site builds and mcp bundles from
  source repos and regenerate nginx.conf + _index/index.html
- port mcp runtime (main.py/core.py/config.py): nginx + health + FastMCP
  servers started from config.yml
- docker: python:3.13-slim + nginx, expose 8000-8006 + 9000 (html portal)
- drone: publish html (6007:9000) and MCP ports 8000-8006
- move mongo-ops docs to wiki/, add auth-server (api) and hexa (lib)
- refresh lib site builds (lib/ prefix) and collect mcp bundles

libs/dagpipe/site/404.html

@@ -44,6 +44,8 @@
     
       <link rel="stylesheet" href="/assets/_mkdocstrings.css">
     
+      <link rel="stylesheet" href="https://unpkg.com/dracula-prism/dist/css/dracula-prism.css">
+    
     <script>__md_scope=new URL("/",location),__md_hash=e=>[...e].reduce(((e,_)=>(e<<5)-e+_.charCodeAt(0)),0),__md_get=(e,_=localStorage,t=__md_scope)=>JSON.parse(_.getItem(t.pathname+"."+e)),__md_set=(e,_,t=localStorage,a=__md_scope)=>{try{t.setItem(a.pathname+"."+e,JSON.stringify(_))}catch(e){}}</script>
     
       
@@ -84,7 +86,7 @@
     <a href="/." title="dagpipe" class="md-header__button md-logo" aria-label="dagpipe" data-md-component="logo">
       
   
-  <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M12 8a3 3 0 0 0 3-3 3 3 0 0 0-3-3 3 3 0 0 0-3 3 3 3 0 0 0 3 3m0 3.54C9.64 9.35 6.5 8 3 8v11c3.5 0 6.64 1.35 9 3.54 2.36-2.19 5.5-3.54 9-3.54V8c-3.5 0-6.64 1.35-9 3.54"/></svg>
+  <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M9 2v6h2v3H5c-1.11 0-2 .89-2 2v3H1v6h6v-6H5v-3h6v3H9v6h6v-6h-2v-3h6v3h-2v6h6v-6h-2v-3c0-1.11-.89-2-2-2h-6V8h2V2z"/></svg>
 
     </a>
     <label class="md-header__button md-icon" for="__drawer">
@@ -201,7 +203,7 @@
     <a href="/." title="dagpipe" class="md-nav__button md-logo" aria-label="dagpipe" data-md-component="logo">
       
   
-  <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M12 8a3 3 0 0 0 3-3 3 3 0 0 0-3-3 3 3 0 0 0-3 3 3 3 0 0 0 3 3m0 3.54C9.64 9.35 6.5 8 3 8v11c3.5 0 6.64 1.35 9 3.54 2.36-2.19 5.5-3.54 9-3.54V8c-3.5 0-6.64 1.35-9 3.54"/></svg>
+  <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M9 2v6h2v3H5c-1.11 0-2 .89-2 2v3H1v6h6v-6H5v-3h6v3H9v6h6v-6h-2v-3h6v3h-2v6h6v-6h-2v-3c0-1.11-.89-2-2-2h-6V8h2V2z"/></svg>
 
     </a>
     dagpipe
@@ -216,7 +218,7 @@
   
   
     <li class="md-nav__item">
-      <a href="/." class="md-nav__link">
+      <a href="/lib/" class="md-nav__link">
         
   
   
@@ -287,7 +289,7 @@
   
   
     <li class="md-nav__item">
-      <a href="/state/" class="md-nav__link">
+      <a href="/lib/state/" class="md-nav__link">
         
   
   
@@ -366,7 +368,7 @@
   
   
     <li class="md-nav__item">
-      <a href="/node/" class="md-nav__link">
+      <a href="/lib/node/" class="md-nav__link">
         
   
   
@@ -445,7 +447,7 @@
   
   
     <li class="md-nav__item">
-      <a href="/graph/" class="md-nav__link">
+      <a href="/lib/graph/" class="md-nav__link">
         
   
   
@@ -524,7 +526,7 @@
   
   
     <li class="md-nav__item">
-      <a href="/engine/" class="md-nav__link">
+      <a href="/lib/engine/" class="md-nav__link">
         
   
   
@@ -603,7 +605,7 @@
   
   
     <li class="md-nav__item">
-      <a href="/yaml_loader/" class="md-nav__link">
+      <a href="/lib/yaml_loader/" class="md-nav__link">