v0.4.1: harden ISO uploads and beta UI polish

Add browser-safe chunked ISO uploads with progress, partial-file visibility, offset validation, and abort cleanup while keeping the legacy multipart endpoint for API clients.

Record host-log validation coverage, keep the queue/status UI copy clean, move release docs to 0.4.1, and tighten the dark theme to a near-black Netbox-style palette.

crates/openpxe/src/main.rs

@@ -39,7 +39,7 @@ enum Command {
     ///   docker run --rm \
     ///     -v /my/isos:/seed:ro \
     ///     -v openpxe-data:/var/lib/openpxe/isos \
-    ///     openpxe:0.3.2 seed --from /seed
+    ///     openpxe:0.4.1 seed --from /seed
     Seed {
         /// Source directory containing one or more `.iso` files.
         #[arg(long)]
@@ -145,6 +145,7 @@ async fn main() -> anyhow::Result<()> {
         metrics: metrics.clone(),
         smb: Some(smb.clone()),
         nfs: nfs.clone(),
+        uploads: openpxe_http_api::uploads::UploadSessions::default(),
         log_bus: log_bus.clone(),
         started_at: time::OffsetDateTime::now_utc(),
         public_base_url: public_base_url.clone(),