refactor: TUI multi-feed monitor with binary parsers

- Add ratatui/crossterm TUI replacing stdout data dump
- Add binary parsers for KSUDP RTCarInfo (port 9996) and Telemetry Tool (port 10101)
- Add shared binary_utils module for safe packet reading
- Add ring-buffer frequency calculation and feed health state machine
- Add parse_first_driver() to avoid unnecessary multi-driver allocation
- Add 27 unit tests (14 feed_state + 6 ksudp + 7 telemetry_tool)
- Move parsing outside mutex lock to minimize TUI contention
- Replace expect() on env var with graceful error handling
- Remove unused serde dependency
- Delete obsolete stats.rs and telemetry.rs

Cargo.toml

@@ -1,12 +1,12 @@
 [package]
 name = "rusty-telemetry"
-version = "0.2.0"
+version = "0.3.0"
 edition = "2021"
 description = "Sim racing telemetry receiver and analyzer"
 
 [dependencies]
 tokio = { version = "1", features = ["full"] }
-serde = { version = "1", features = ["derive"] }
-serde_json = "1"
 chrono = "0.4"
 futures = "0.3"
+ratatui = "0.29"
+crossterm = "0.28"