Phase 2.1: Backend project initialized with Docker configuration

- Created Cargo.toml with all required dependencies
- Implemented health/ready endpoints
- Added Docker configuration (production + development)
- Configured docker-compose with resource limits
- Set up MongoDB service with persistence
- Verified build (cargo check passed)
- Prepared monorepo structure for mobile/web/shared

Next: Phase 2.2 (MongoDB connection and models)

backend/Cargo.toml

@@ -0,0 +1,29 @@
+[package]
+name = "normogen-backend"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]
+axum = { version = "0.7", features = ["macros", "multipart"] }
+tokio = { version = "1", features = ["full"] }
+tower = "0.4"
+tower-http = { version = "0.5", features = ["cors", "trace", "limit", "decompression-gzip"] }
+serde = { version = "1", features = ["derive"] }
+serde_json = "1"
+mongodb = "2.8"
+jsonwebtoken = "9"
+async-trait = "0.1"
+dotenv = "0.15"
+tracing = "0.1"
+tracing-subscriber = { version = "0.3", features = ["env-filter"] }
+validator = { version = "0.16", features = ["derive"] }
+uuid = { version = "1", features = ["v4", "serde"] }
+chrono = { version = "0.4", features = ["serde"] }
+pbkdf2 = { version = "0.12", features = ["simple"] }
+sha2 = "0.10"
+rand = "0.8"
+anyhow = "1"
+thiserror = "1"
+
+[dev-dependencies]
+tokio-test = "0.4"