chore: update dependencies and environment configuration

- Updated Claude settings to enable shadcn MCP server
- Removed env.example file (replaced with example.env)
- Updated package-lock.json with latest dependencies
- Added example.env file for environment variable configuration

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

.claude/settings.local.json

@@ -10,7 +10,8 @@
       "mcp__playwright__browser_take_screenshot",
       "mcp__playwright__browser_close",
       "Bash(git add:*)",
-      "Bash(git log:*)"
+      "Bash(git log:*)",
+      "Bash(git commit:*)"
     ],
     "additionalDirectories": [
       "C:\\c\\Projects\\nextjs-better-auth-postgresql-starter-kit"
@@ -18,6 +19,6 @@
   },
   "enableAllProjectMcpServers": true,
   "enabledMcpjsonServers": [
-    "context7"
+    "shadcn"
   ]
 }

env.example

@@ -1,23 +0,0 @@
-# Database
-POSTGRES_URL=postgresql://dev_user:dev_password@localhost:5432/agentic_coding_dev
-
-# Authentication - Better Auth
-# Generate key using https://www.better-auth.com/docs/installation
-BETTER_AUTH_SECRET=qtD4Ssa0t5jY7ewALgai97sKhAtn7Ysc
-
-# Google OAuth (Get from Google Cloud Console)
-GOOGLE_CLIENT_ID=
-GOOGLE_CLIENT_SECRET=
-
-# AI Integration (Optional - for chat functionality)
-OPENAI_API_KEY=
-OPENAI_MODEL="gpt-5-mini"
-
-# Optional - for vector search only
-OPENAI_EMBEDDING_MODEL="text-embedding-3-large"
-
-# App URL (for production deployments)
-NEXT_PUBLIC_APP_URL="http://localhost:3000"
-
-# File storage (optional - if app required file uploads)
-BLOB_READ_WRITE_TOKEN=