Initial commit: telfax - Rust Fax Server

- Modem driver (serialport) with AT command interface
- Class 1 fax protocol (T.30 session, HDLC framing)
- T.4/T.6 image codec (fax crate integration)
- Document conversion (image to fax, TIFF-F output)
- REST API (axum) for fax job management
- SQLite/InMemory job queue
- CLI interface (detect/serve/send/test)
- Integration tests passing

Cargo.toml

@@ -0,0 +1,63 @@
+[package]
+name = "telfax"
+version = "0.1.0"
+edition = "2024"
+description = "A standalone fax server library and application"
+license = "MIT"
+
+[features]
+default = ["server"]
+server = ["dep:axum", "dep:clap", "dep:tokio", "dep:rusqlite", "dep:tower-http", "dep:tracing-subscriber"]
+cli = ["dep:clap"]
+
+[lib]
+name = "telfax"
+
+[[bin]]
+name = "telfax"
+path = "src/main.rs"
+required-features = ["server"]
+
+[dependencies]
+# Serial modem
+serialport = "4.3"
+
+# Fax codec (T.4/T.6 compression)
+fax = "0.2"
+
+# Document handling
+image = "0.25"
+tiff = "0.11"
+lopdf = "0.36"
+
+# Error handling
+thiserror = "2"
+anyhow = "1"
+
+# Serialization
+serde = { version = "1", features = ["derive"] }
+serde_json = "1"
+
+# Logging
+tracing = "0.1"
+
+# Async (for server mode)
+tokio = { version = "1", features = ["full"], optional = true }
+axum = { version = "0.8", optional = true }
+tower-http = { version = "0.6", features = ["cors"], optional = true }
+tracing-subscriber = { version = "0.3", features = ["json", "env-filter"], optional = true }
+
+# CLI / Config
+clap = { version = "4", features = ["derive"], optional = true }
+
+# Queue persistence
+rusqlite = { version = "0.32", features = ["bundled"], optional = true }
+
+# UUID for job IDs
+uuid = { version = "1", features = ["v4", "serde"] }
+
+# Date/time
+chrono = { version = "0.4", features = ["serde"] }
+
+# Config file parsing
+toml = "0.8"