merge(sdk): fix #336 — contrat docs commandes/menus apres hot reload (erreur retryable, feedback host-owned, contrat manifest/registration, reload sans refresh auto)

# Conflicts:
#	docs/menus.md

docs/menus.md

@@ -41,9 +41,11 @@ export function activate(ctx: ActivateContext): void {
 
 ## Rules
 
-- A command can only be registered if at least one manifest menu item declares
-  that exact `command` id.
-- Missing command handlers are a no-op when the user clicks the menu item.
+- There is no separate `contributes.commands` collection. A command can only be
+  registered if at least one manifest `menuItems[].command` or
+  `slashCommands[].command` entry declares that exact id.
+- A missing command handler is surfaced by the host as a retryable reload error;
+  menu clicks must never fail silently.
 - A registered handler's rejected promise is not swallowed: the host logs the
   plugin id, command id and reason, then presents a retryable error. In
   particular, return/await `services.windows.open(...)` so native-window