Initial commit: iLED shop monolith with Drone CI/CD scaffold.

Adds API, Angular shop/admin, docker compose, and .drone.yml for build + SSH deploy.

Co-authored-by: Cursor <cursoragent@cursor.com>

docker/.env.example

@@ -0,0 +1,15 @@
+# Copy to .env on the deploy host (never commit .env).
+POSTGRES_DB=iled
+POSTGRES_USER=iled
+POSTGRES_PASSWORD=change-me
+REDIS_PASSWORD=
+
+# API
+ASPNETCORE_ENVIRONMENT=Production
+Cors__Origins__0=https://shop.example.com
+Cors__Origins__1=https://admin.example.com
+
+# Observability (optional)
+OpenTelemetry__OtlpEndpoint=
+OpenTelemetry__OtlpHeaders=
+OpenTelemetry__ServiceName=iled-api