feat: integrate tracing and enhance bit matrix operations

Add the `tracing` crate to `obidebruinj`, `obisys`, and resolve it in `Cargo.lock`. Replace `eprintln!` statements with structured `debug!` and `info!` macros. Introduce a `TracedBar` wrapper for progress bars and enhance the `Stage` lifecycle to emit structured events for timing, memory metrics, and swap warnings. Add a progress spinner for unitig degree computation. Extend `PersistentBitMatrix` with columnar bit-vector operations and parallel distance methods, enabling uniform distance computations across all storage layouts while replacing previous panics with dimension-based fallbacks.

src/Cargo.lock

@@ -1490,6 +1490,7 @@ dependencies = [
  "obifastwrite",
  "obikseq",
  "rayon",
+ "tracing",
  "xxhash-rust",
 ]
 
@@ -1666,6 +1667,7 @@ dependencies = [
  "indicatif",
  "libc",
  "sysinfo",
+ "tracing",
 ]
 
 [[package]]