ai: add playwright skill, drop stale skills

- Remove claude-automation-recommender and supabase-postgres-best-practices
- Add includeGitInstructions, spinnerTipsEnabled to settings
- Set ENABLE_CLAUDEAI_MCP_SERVERS=false, normalize agent teams flag

Author: PaulRBerg

settings/basics.jsonc

@@ -6,9 +6,12 @@
   "enableAllProjectMcpServers": true,
   "model": "opus",
   "includeCoAuthoredBy": false,
+  "includeGitInstructions": false,
   "skipDangerousModePermissionPrompt": true,
+  "spinnerTipsEnabled": true,
   "env": {
-    "CLAUDE_CODE_EXPERIMENTAL_AGENT_TEAMS": "1",
+    "CLAUDE_CODE_EXPERIMENTAL_AGENT_TEAMS": "true",
+    "ENABLE_CLAUDEAI_MCP_SERVERS": "false",
     // Activate MCP tool search when tool definitions exceed 5% of context (default: 10%)
     "ENABLE_TOOL_SEARCH": "auto:5"
   },

skills/claude-automation-recommender

@@ -0,0 +1 @@
+../../.agents/skills/playwright-skill