feat: tui backend server progress and generate script progress

1 files changed, 23 insertions, 0 deletions

diff --git a/app/backends/probe.py b/app/backends/probe.py
index ebef86e..efa2963 100644
--- a/app/backends/probe.py
+++ b/app/backends/probe.py
@@ -126,3 +126,26 @@ def same_endpoint(url_a: str, url_b: str) -> bool:
     port_a = a.port or (443 if (a.scheme or "http") == "https" else 80)
     port_b = b.port or (443 if (b.scheme or "http") == "https" else 80)
     return host_a == host_b and port_a == port_b
+
+
+def health_payload(url: str, timeout: float = DEFAULT_TIMEOUT) -> Optional[dict]:
+    """Return the server's ``/health`` JSON document, or None.
+
+    A cheaper, raw check than ``identify_server``: used by the run view's
+    background poll to tell "process alive" from "server answering" without
+    probing every identity endpoint.
+    """
+    if not url:
+        return None
+    return _get_json(f"{url.rstrip('/')}/health", timeout)
+
+
+def faster_model_loaded(url: str, timeout: float = DEFAULT_TIMEOUT) -> bool:
+    """True when a faster server at URL reports its model loaded.
+
+    faster's ``/health`` answers with a ``model_loaded`` flag only after the
+    weights are resident, so this is the "truly ready" signal used while
+    waiting for a started server to become usable.
+    """
+    payload = health_payload(url, timeout)
+    return bool(payload and payload.get("model_loaded"))