docs: fix tool counts (596→565), update live URL, clean Docker README

- Fix tool count: 596→565 (OpenPanel reduced from 73→42 in v3.4.0)
- Update DOCKER_README: dashboard-first site configuration
- Update .env.example version to 3.4.0

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

DOCKER_README.md

@@ -2,7 +2,7 @@
 
 **The AI-native management hub for WordPress, WooCommerce, and self-hosted services.**
 
-596 tools across 9 plugins. Connect your sites, stores, repos, and databases — manage them all through Claude, ChatGPT, Cursor, or any MCP client.
+565 tools across 9 plugins. Connect your sites, stores, repos, and databases — manage them all through Claude, ChatGPT, Cursor, or any MCP client.
 
 > **Don't want to self-host?** Try the hosted instance at **[mcp.palebluedot.live](https://mcp.palebluedot.live)** — log in with GitHub or Google, add your sites, and connect your AI client in minutes.
 
@@ -13,14 +13,10 @@
 ```bash
 # Recommended (auto-generates temp key if omitted — check container logs)
 MASTER_API_KEY=your-secure-key-here
-
-# Add at least one WordPress site
-WORDPRESS_SITE1_URL=https://your-site.com
-WORDPRESS_SITE1_USERNAME=admin
-WORDPRESS_SITE1_APP_PASSWORD=xxxx xxxx xxxx xxxx
-WORDPRESS_SITE1_ALIAS=mysite
 ```
 
+After starting, open the **web dashboard** to add your sites — no env vars needed for site configuration.
+
 ### 2. Run the container
 
 ```bash
@@ -96,7 +92,7 @@ Use the most specific endpoint for your use case:
 | `/u/{user_id}/{alias}/mcp` | 22-100 | No (pre-scoped) | Hosted/OAuth users |
 | `/project/{alias}/mcp` | 22-100 | No (pre-scoped) | Single-site workflow |
 | `/{plugin}/mcp` | 23-101 | Yes | Multi-site management |
-| `/mcp` | 596 | Yes | Admin & discovery only |
+| `/mcp` | 565 | Yes | Admin & discovery only |
 
 Available plugin endpoints: `/wordpress/mcp`, `/woocommerce/mcp`, `/wordpress-advanced/mcp`, `/gitea/mcp`, `/n8n/mcp`, `/supabase/mcp`, `/openpanel/mcp`, `/appwrite/mcp`, `/directus/mcp`, `/system/mcp`