T25e Generative: models

ModelCard sets a model's maker, what it does, its facts and tags, and
Use unless it is in use. ModelDownloadManager lists downloads with how
much of how much, speed and time left, and Pause, Resume, Cancel,
Retry and Delete by state. ModelStatus marks a model idle, loading,
loaded with its GPU memory, or failed. HardwareMonitor sets a meter per
part beside its history. FineTuneJobCard shows a job's phase, its
epochs and its loss on training and held-out data.

AGENTS.md: after each item, cargo clean -p ely-gpui-component too;
old builds of the crate had filled the disk. The reveal rule names
layout::bring_into_view.

src/theme/generative.rs

@@ -11,6 +11,8 @@ pub struct GenerativeSizes {
     pub second: Rems,
     /// A shot's height on a timeline.
     pub shot: Rems,
+    /// A loss chart's height on a job's card.
+    pub loss: Rems,
 }
 
 impl Theme {
@@ -19,6 +21,7 @@ impl Theme {
             preset: px_to_rems(88.0),
             second: px_to_rems(24.0),
             shot: px_to_rems(56.0),
+            loss: px_to_rems(140.0),
         }
     }
 }