Enhance logging and progress handling in SSH operations

- Updated the `_log_default` function to handle messages starting with `\r` for in-place updates.
- Introduced `split_ssh_stream` to differentiate between line and progress events in SSH output.
- Implemented `feed_ssh_log` to dispatch log messages based on event type.
- Refactored `_stream_pty_output` to utilize the new logging and event handling functions.
- Enhanced the `log` function in `term.py` to support progress updates, ensuring a cleaner output experience.
- Updated `DownloadProgress` classes in `civitai_fetch.py` and `llamacpp_fetch.py` to print progress in place, improving user feedback during downloads.

src/gpu_rent/remote/civitai_fetch.py

@@ -47,7 +47,7 @@ def progress_line(
 
 
 class DownloadProgress:
-    """Print size + speed about once per second (SSH readline-friendly)."""
+    """Print size + speed ~1Hz; \\r in place, newline on finish."""
 
     def __init__(self, label: str, total: int | None) -> None:
         self.label = label
@@ -67,14 +67,16 @@ class DownloadProgress:
         self._emit()
 
     def finish(self) -> None:
-        self._emit()
+        # Final line with newline so the next log stays below the bar.
+        self._emit(final=True)
 
-    def _emit(self) -> None:
+    def _emit(self, *, final: bool = False) -> None:
         elapsed = max(time.monotonic() - self.t0, 0.001)
-        print(
-            progress_line(self.label, self.done, self.total, self.done / elapsed),
-            flush=True,
-        )
+        line = progress_line(self.label, self.done, self.total, self.done / elapsed)
+        if final:
+            print(line, flush=True)
+        else:
+            print(line, end="\r", flush=True)
 
 
 def sha256_path(path: Path) -> str:

src/gpu_rent/remote/llamacpp_fetch.py

@@ -64,14 +64,15 @@ class DownloadProgress:
         self._emit()
 
     def finish(self) -> None:
-        self._emit()
+        self._emit(final=True)
 
-    def _emit(self) -> None:
+    def _emit(self, *, final: bool = False) -> None:
         elapsed = max(time.monotonic() - self.t0, 0.001)
-        print(
-            progress_line(self.label, self.done, self.total, self.done / elapsed),
-            flush=True,
-        )
+        line = progress_line(self.label, self.done, self.total, self.done / elapsed)
+        if final:
+            print(line, flush=True)
+        else:
+            print(line, end="\r", flush=True)
 
 
 def download(url: str, dest: Path, headers: dict[str, str], *, label: str) -> None:

src/gpu_rent/remote/ollama_pull.py

@@ -96,7 +96,9 @@ def pull_stream(name: str, label: str) -> None:
                 if now - last_print >= 1.0 or done >= total:
                     elapsed = max(now - t0, 0.001)
                     speed = done / elapsed
-                    print(progress_line(label, done, total, speed), flush=True)
+                    line = progress_line(label, done, total, speed)
+                    end = "\n" if done >= total else "\r"
+                    print(line, end=end, flush=True)
                     last_print = now
             elif status and status not in {"success"} and now - last_print >= 2.0:
                 print(f"{label} {status}", flush=True)