Add ALFWorld game-world simulation demo with visual MCP server

sim-gameworld-demo/.env.template

@@ -0,0 +1,25 @@
+# ── Inference API credentials ─────────────────────────────────────
+# Your NemoClaw / NVIDIA inference API key.
+# Required — install.sh will fail if this is not set.
+INFERENCE_API_KEY=
+
+# ── Inference provider configuration ──────────────────────────────
+# Defaults below target the NVIDIA build API with Claude Opus 4.6.
+# Override any of these to use a different provider, model, or endpoint.
+INFERENCE_PROVIDER_TYPE=
+INFERENCE_PROVIDER_NAME=
+INFERENCE_BASE_URL=
+INFERENCE_MODEL=
+
+# ── ALFWorld data path (required) ─────────────────────────────────
+# Absolute path to the ALFWorld dataset on the host machine.
+# On Brev machines the data is pre-downloaded here:
+ALFWORLD_DATA=/ephemeral/cache/alfworld
+# If you downloaded the data yourself, set this to your download path:
+# ALFWORLD_DATA=/home/youruser/alfworld_data
+
+# ── MCP server configuration (optional overrides) ─────────────────
+# Uncomment and change only if you need a non-default port or path.
+# MCP_ALFWORLD_HOST=0.0.0.0
+# MCP_ALFWORLD_PORT=9001
+# MCP_ALFWORLD_PATH=/mcp