fix(mcp): secure API key handling in Cursor config

- Move .cursor/mcp.json to gitignore (contains API keys)
- Add .cursor/mcp.json.example as template for local setup
- Users must copy example and add their own API key from .env

The MCP client needs PATTERN_API_KEY to match the HTTP API server
configured key for authentication to succeed.

Author: PaulJPhilp

.cursor/mcp.json .cursor/mcp.json.example.cursor/mcp.json renamed to .cursor/mcp.json.example

@@ -3,8 +3,11 @@
     "effect-patterns": {
       "command": "/Users/paul/Projects/Public/Effect-Patterns/packages/mcp-server/start-mcp.sh",
       "env": {
+        "PATTERN_API_KEY": "your-api-key-from-packages/mcp-server/.env",
+        "LOCAL_API_KEY": "your-api-key-from-packages/mcp-server/.env",
         "EFFECT_PATTERNS_API_URL": "http://localhost:3000",
-        "NODE_ENV": "development"
+        "NODE_ENV": "development",
+        "MCP_ENV": "local"
       }
     }
   }

.gitignore

@@ -51,3 +51,6 @@ content/backups/
 content/published/skills/claude/
 content/published/skills/gemini/
 content/published/skills/openai/
+
+# IDE local config with secrets
+.cursor/mcp.json