huskies: merge 1149 story huskies health chat command — surface gateway, sled, matrix, creds, and build-hash status

server/src/chat/commands/mod.rs

@@ -269,6 +269,11 @@ pub fn commands() -> &'static [BotCommand] {
             description: "List orphaned worktrees (dry run), or `cleanup_worktrees --confirm` to remove them",
             handler: handle_cleanup_worktrees_fallback,
         },
+        BotCommand {
+            name: "health",
+            description: "Show subsystem health: gateway, sled, matrix-sync, creds, and build-hash",
+            handler: handle_health_fallback,
+        },
         BotCommand {
             name: "new",
             description: "Bootstrap a new project container (gateway only): `new project <name>`",
@@ -446,6 +451,16 @@ fn handle_project_rebuild_fallback(_ctx: &CommandContext) -> Option<String> {
     None
 }
 
+/// Fallback handler for the `health` command when it is not intercepted by the
+/// async handler in `on_room_message`.  In practice this is never called — health
+/// is detected and handled before `try_handle_command` is invoked.  The entry
+/// exists in the registry only so `help` lists it.
+///
+/// Returns `None` to prevent the LLM from receiving "health" as a prompt.
+fn handle_health_fallback(_ctx: &CommandContext) -> Option<String> {
+    None
+}
+
 // ---------------------------------------------------------------------------
 // Tests
 // ---------------------------------------------------------------------------