chore: init monorepo with GPL-3.0 license, docs, backend skeleton, frontend wiring

indexium-backend/Cargo.toml

@@ -0,0 +1,26 @@
+[package]
+name = "indexium-backend"
+version = "0.1.0"
+edition = "2024"
+
+[dependencies]
+async-trait = "0.1.92"
+axum = "0.8.9"
+chrono = { version = "0.4.45", features = ["serde"] }
+dotenvy = "0.15.7"
+reqwest = { version = "0.13.4", features = ["json", "stream"] }
+serde = { version = "1.0.229", features = ["derive"] }
+serde_json = "1.0.151"
+sqlx = { version = "0.9.0", features = ["postgres", "runtime-tokio", "tls-rustls-aws-lc-rs", "uuid", "chrono", "json"] }
+tokio = { version = "1.53.1", features = ["full"] }
+tower-http = { version = "0.7.1", features = ["cors", "trace"] }
+tracing = "0.1.44"
+tracing-subscriber = { version = "0.3.23", features = ["env-filter", "fmt"] }
+uuid = { version = "1.26.0", features = ["v4", "serde"] }
+thiserror = "2.0"
+flate2 = "1.1"
+bytes = "1.11"
+hmac = "0.12"
+sha2 = "0.10"
+hex = "0.4"
+subtle = "2.6"