feat: PR-B quality helpers — prelude + lint + recipes

INSTALL.md

@@ -57,7 +57,7 @@ The MCP server runs whenever Claude Code is open.
 ## Verifying the install
 
 1. Open the PluginOS Bridge plugin in Figma. The status pill should turn green ("Connected") within a few seconds.
-2. In your agent, ask: "list available pluginos operations". You should get a list of 39 operations.
+2. In your agent, ask: "list available pluginos operations". You should get a list of operations and their categories.
 
 ---
 

README.md

@@ -101,7 +101,7 @@ The agent calls write operations to create frames, set text, and modify fills 
 
 ```
 Agent ── MCP (stdio) ──> PluginOS Server ── WebSocket ──> Bridge Plugin ──> Figma
-         5 tools           thin router        localhost      26 operations    full API
+         5 tools           thin router        localhost      many operations  full API
          ~600 tokens       routes by name     ports 9500-    executes locally figma.*
          per turn          + params only      9510           returns summaries
 ```