chore(build): add Docker configuration and update dependency versions

- Update Cargo.toml with shortened version specifications for dependencies
- Add .dockerignore file to exclude unnecessary files from Docker builds
- Create .env.example with comprehensive environment variable configurations
- Add docker-compose.yaml with complete multi-service infrastructure setup
- Add Dockerfile with optimized multi-stage build process using cargo-chef
- Add Dockerfile.fast for faster container builds during development
- Configure

Dockerfile.fast

@@ -0,0 +1,16 @@
+FROM ubuntu:26.04
+
+RUN apt-get update && \
+    apt-get install -y --no-install-recommends ca-certificates && \
+    rm -rf /var/lib/apt/lists/*
+
+COPY target/release/appks /usr/local/bin/appks
+
+ENV APP_HTTP_HOST=0.0.0.0
+ENV APP_HTTP_PORT=8000
+ENV APP_RPC_SELF_HOST=0.0.0.0
+ENV APP_RPC_SELF_PORT=50049
+
+EXPOSE 8000 50049
+
+ENTRYPOINT ["appks"]