Bootstrap DD3 Rust port workspace with host-first compatibility tests

crates/dd3_core/src/traits.rs

@@ -0,0 +1,27 @@
+use std::vec::Vec;
+
+pub trait Clock {
+    fn now_ms(&self) -> u64;
+    fn now_utc(&self) -> u32;
+    fn is_time_synced(&self) -> bool;
+}
+
+pub trait Radio {
+    fn send_frame(&mut self, frame: &[u8]) -> bool;
+    fn recv_frame(&mut self, window_ms: u32, now_ms: u64) -> Option<Vec<u8>>;
+}
+
+pub trait Publisher {
+    fn publish_state(&mut self, device_id: &str, payload: &str);
+    fn publish_faults(&mut self, device_id: &str, payload: &str);
+    fn publish_discovery(&mut self, device_id: &str, payload: &str);
+}
+
+pub trait Storage {
+    fn append_csv(&mut self, device_id: &str, line: &str);
+}
+
+pub trait StatusSink {
+    fn sender_phase(&mut self, _phase: &str) {}
+    fn receiver_status(&mut self, _status: &str) {}
+}