Replace em dashes with hyphens across docs and comments

README.md

@@ -8,7 +8,7 @@ failures.
 ## This is a learning-stage boilerplate
 
 Real ONNX Runtime inference (the `ort` crate) and the Postgres audit write
-(`sqlx`) are **not** implemented yet — `src/inference/mod.rs` always
+(`sqlx`) are **not** implemented yet - `src/inference/mod.rs` always
 "detects" one fixed example failure, and `src/reporter/mod.rs` only prints
 where the Postgres write would go. The Redis Streams consumer-group loop in
 `main.rs` and the Redis pub/sub alert in `reporter/` are real. This lets the
@@ -24,7 +24,7 @@ continuum-proxy --(frames)--> continuum-backend --(XADD)--> stream:camera_frames
                                                                     v
                                                      inference::detect (stub for now)
                                                                     v
-                                                 reporter::report (Redis pub/sub — real)
+                                                 reporter::report (Redis pub/sub - real)
 ```
 
 ## Getting started
@@ -40,6 +40,6 @@ cargo run
 src/
   main.rs          Consumer-group loop: XREADGROUP -> detect -> report -> XACK
   config.rs        Loads settings from environment variables
-  inference/       Detection stub — real ONNX Runtime inference goes here later
+  inference/       Detection stub - real ONNX Runtime inference goes here later
   reporter/        Redis pub/sub alert (real) + a note for the Postgres write (later)
 ```