chore: apply cargo fmt across workspace and update docs

- Run cargo fmt on all Rust crates for consistent formatting
- Update CLAUDE.md with WASM plugin commands and dev.ps1 instructions
- Update wiki: add WASM plugin architecture, rewrite dev environment docs
- Minor frontend cleanup (unused imports)

crates/erp-config/src/handler/menu_handler.rs

@@ -142,8 +142,7 @@ where
                     role_ids: item.role_ids.clone(),
                     version,
                 };
-                MenuService::update(id, ctx.tenant_id, ctx.user_id, &update_req, &state.db)
-                    .await?;
+                MenuService::update(id, ctx.tenant_id, ctx.user_id, &update_req, &state.db).await?;
             }
             None => {
                 let create_req = CreateMenuReq {