Initial wws serverless functions setup

- Add health check API endpoint (/api)
- Add chat proxy to n8n workflow (/chat)
- Add webhook receiver for external integrations (/webhook)
- Add Dockerfile for container deployment
- Add wws.toml configuration

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Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Dockerfile

@@ -0,0 +1,11 @@
+FROM ghcr.io/vmware-labs/wws:latest
+
+WORKDIR /app
+
+# Copy all functions
+COPY . .
+
+EXPOSE 8080
+
+# wws automatically serves files from /app
+CMD ["wws", "."]