Ely Office: six offline-first desktop apps in Rust and GPUI

ElyDoc, ElyTable, ElyShow (LibreOfficeKit), ElyPDF (MuPDF), ElyTree (Git),
ElyMark (Milkdown and CodeMirror in CEF). ElyMail and ElyAgent follow.

crates/ely-web-content/src/bin/ely-web-helper.rs

@@ -0,0 +1,9 @@
+//! CEF's helper processes inside an app bundle.
+
+fn main() {
+    let Some(code) = ely_web_content::subprocess() else {
+        eprintln!("ely-web-helper: started without --type; CEF starts it");
+        std::process::exit(2);
+    };
+    std::process::exit(code);
+}