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)

apps/web/src/api/roles.ts

@@ -7,6 +7,7 @@ export interface RoleInfo {
   code: string;
   description?: string;
   is_system: boolean;
+  version: number;
 }
 
 export interface PermissionInfo {
@@ -27,6 +28,7 @@ export interface CreateRoleRequest {
 export interface UpdateRoleRequest {
   name?: string;
   description?: string;
+  version: number;
 }
 
 export async function listRoles(page = 1, pageSize = 20) {