Pre-0.1 cleanup: fmt, docs, licenses, AUR-ready packaging

- cargo fmt across the workspace (the CI gate the last push tripped).
- varde-daemon: drop the now-unused bytes dependency.
- varde-ctl(1): document push; gc reflects the continuous-sweep
  reality; subscribe mentions push events.
- config.toml example: gc_interval_secs, and an honest note that
  max_download_bytes_per_sec is currently unenforced.
- LICENSE-MIT + LICENSE-APACHE at the root (the declared license now
  ships as files), bundled into release tarballs and installed by the
  PKGBUILD.
- PKGBUILD: real maintainer, AUR pre-flight note (updpkgsums), license
  installation.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

varde-daemon/src/daemon.rs

@@ -382,7 +382,12 @@ impl Daemon {
                         .present_trusted_peers()
                         .into_iter()
                         .filter(|p| p.connected)
-                        .filter_map(|p| p.node_id.parse::<iroh::EndpointId>().ok().map(iroh::EndpointAddr::from))
+                        .filter_map(|p| {
+                            p.node_id
+                                .parse::<iroh::EndpointId>()
+                                .ok()
+                                .map(iroh::EndpointAddr::from)
+                        })
                         .collect();
                     if !present.is_empty() {
                         self.transfer.spawn_fetch(
@@ -568,7 +573,6 @@ impl Daemon {
             Request::Subscribe {} => Ok(ResponseData::Done {}),
         }
     }
-
 }
 
 fn blob_format(format: StoredFormat) -> BlobFormat {