chore: split Claude Code settings for OSS (remove internal marketplace plugins)

Remove 6 internal passionfactory-only plugins from .claude/settings.json
for public OSS use, add language: en, and register the pleaseai
marketplace (with autoUpdate) plus turborepo/bun/ast-grep plugins.

Author: amondnet

.claude/settings.json

@@ -1,4 +1,5 @@
 {
+  "language": "en",
   "permissions": {
     "allow": [
       "Bash(bun run build)",
@@ -27,21 +28,25 @@
     "claude-md-management@claude-plugins-official": true,
     "gatekeeper@pleaseai": true,
     "mcp-dev@pleaseai": true,
-    "testing@passionfactory": true,
-    "standards@passionfactory": true,
-    "tidy-first@passionfactory": true,
     "vitest@pleaseai": true,
-    "research@passionfactory": true,
-    "frontend@passionfactory": true,
     "modern-web-guidance@pleaseai": true,
-    "plannotator@passionfactory": true
+    "turborepo@pleaseai": true,
+    "bun@pleaseai": true,
+    "ast-grep@pleaseai": true
   },
   "extraKnownMarketplaces": {
     "code-intelligence": {
       "source": {
         "source": "directory",
         "path": "./"
       }
+    },
+    "pleaseai": {
+      "source": {
+        "source": "github",
+        "repo": "pleaseai/claude-code-plugins"
+      },
+      "autoUpdate": true
     }
   }
 }