chore: add Playwright MCP server config to .mcp.json [PYSDK-117] (#608)

Remove .mcp.json from .gitignore so the file becomes a tracked repo artefact (per Claude Code project-scope MCP convention) and add it at the repo root with a single Playwright stdio server entry (npx @playwright/mcp@latest).

Pure dev-tooling change — does not modify SDK runtime, the published package, the SDK's own auto-discovered MCP server (aignostics.utils._mcp), CI workflows, tests, or docs.

Author: helmut-hoffer-von-ankershoffen

.gitignore

@@ -96,9 +96,6 @@ scalene-profile.html
 # Nicegui
 .nicegui
 
-# MCP
-.mcp.json
-
 # Application specific
 data/**
 !data/.keep 

.mcp.json

@@ -0,0 +1,8 @@
+{
+  "mcpServers": {
+    "playwright": {
+      "command": "npx",
+      "args": ["@playwright/mcp@latest"]
+    }
+  }
+}