v0.35.1: performance, AGPL licensing and documentation overhaul

- Web Server reads static files inline; proxy middleware chain flattened
- About window with license summary and project links; AGPL-3.0-or-later
- Rewritten documentation: feature list, screenshots, performance guide
- Fix false spikes in per-Vhost request-rate charts

build.rs

@@ -70,9 +70,17 @@ fn swagger_assets(
         _ => vec!["python3".into(), "python".into()],
     };
     for interpreter in interpreters {
-        match Command::new(&interpreter).arg(&helper).arg("--out-dir").arg(out).status() {
+        match Command::new(&interpreter)
+            .arg(&helper)
+            .arg("--out-dir")
+            .arg(out)
+            .status()
+        {
             Ok(status) if status.success() => return Ok(()),
-            Ok(_) => return Err("Swagger UI asset preparation failed; see the diagnostic above and docs/API_ACCESS.md".into()),
+            Ok(_) => return Err(
+                "Swagger UI asset preparation failed; see the diagnostic above and docs/INSTALL.md"
+                    .into(),
+            ),
             Err(error) if error.kind() == std::io::ErrorKind::NotFound => continue,
             Err(error) => return Err(error.into()),
         }