Add .gitignore and .env.example

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

.env.example

@@ -0,0 +1,14 @@
+# Model to use (litellm format)
+LH_MODEL=openrouter/qwen/qwen3-coder
+
+# API keys (set at least one for your chosen provider)
+# OPENROUTER_API_KEY=
+# OPENAI_API_KEY=
+# GEMINI_API_KEY=
+
+# E2B sandbox
+E2B_API_KEY=your-e2b-api-key
+
+# Web app authentication
+LH_ACCESS_TOKEN=your-secret-token
+# LH_MAX_SESSION_COST=0.50

.gitignore

@@ -0,0 +1,4 @@
+__pycache__/
+*.pyc
+.env
+.venv/