Help menu (? on the application bar): About SolveCraft (version, commit, build date, ATTRIBUTION.md, fonts, licences), Keyboard Shortcuts read only, Report an Issue copies diagnostics (version, OS, GPU); ui.help control method

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01AS5Tn3xieewUSg3uxrMVdL

crates/ui-egui/src/control.rs

@@ -23,6 +23,7 @@
 //! - `ui.window {action: minimize|maximize|restore|toggle|close}`: what the title bar's buttons do
 //! - `ui.confirm {accept?}`: the Delete confirmation (without `accept`: what it lists)
 //! - `ui.shortcut {command, key?, replace?}`: a command's key, or bind one ("" clears)
+//! - `ui.help {item?: about|shortcuts|report}`: the Help menu; returns the version and diagnostics
 //! - `ui.resize {width, height}`, `app.quit`
 
 use std::sync::mpsc::Sender;
@@ -375,6 +376,17 @@ pub fn handle(app: &mut SolveApp, ctx: &egui::Context, req: &ControlRequest) ->
                 None => ok(json!({"command": id, "key": crate::keymap::effective(app, id)})),
             }
         }
+        "ui.help" => match s("item") {
+            Some(i @ ("about" | "shortcuts" | "report")) => {
+                crate::help::run(app, ctx, i);
+                ok(
+                    json!({"diagnostics": crate::help::diagnostics(app), "version": crate::help::VERSION, "commit": crate::help::COMMIT, "built": crate::help::BUILD_DATE}),
+                )
+            }
+            _ => ok(
+                json!({"diagnostics": crate::help::diagnostics(app), "version": crate::help::VERSION, "commit": crate::help::COMMIT, "built": crate::help::BUILD_DATE}),
+            ),
+        },
         "ui.menuPick" => {
             let Some(key) = s("item") else { return err("missing `item` (id or label)") };
             wrap(crate::context_menu::pick(app, key))