Scaffold repo: infra docker-compose, service layout, README

Sets up the microservice home-automation platform skeleton: docker-compose
for mosquitto/postgres/clickhouse/redis/rabbitmq, per-service README stubs
describing responsibilities, and top-level README with architecture/stack.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

.gitignore

@@ -0,0 +1,25 @@
+# Go
+services/**/bin/
+services/**/*.exe
+*.test
+*.out
+
+# Laravel
+laravel-app/vendor/
+laravel-app/node_modules/
+laravel-app/.env
+laravel-app/storage/*.key
+laravel-app/bootstrap/cache/*
+!laravel-app/bootstrap/cache/.gitkeep
+
+# Env / secrets
+.env
+.env.local
+
+# Docker volumes data (if bind-mounted locally)
+volumes/
+
+# IDE / OS
+.idea/
+.vscode/
+.DS_Store