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-auth/src/handler/user_handler.rs

@@ -10,8 +10,8 @@ use uuid::Uuid;
 
 use crate::auth_state::AuthState;
 use crate::dto::{CreateUserReq, RoleResp, UpdateUserReq, UserResp};
-use erp_core::rbac::require_permission;
 use crate::service::user_service::UserService;
+use erp_core::rbac::require_permission;
 
 /// Query parameters for user list endpoint.
 #[derive(Debug, Deserialize)]
@@ -41,9 +41,13 @@ where
         page: params.page,
         page_size: params.page_size,
     };
-    let (users, total) =
-        UserService::list(ctx.tenant_id, &pagination, params.search.as_deref(), &state.db)
-            .await?;
+    let (users, total) = UserService::list(
+        ctx.tenant_id,
+        &pagination,
+        params.search.as_deref(),
+        &state.db,
+    )
+    .await?;
 
     let page = pagination.page.unwrap_or(1);
     let page_size = pagination.limit();
@@ -123,8 +127,7 @@ where
 {
     require_permission(&ctx, "user.update")?;
 
-    let user =
-        UserService::update(id, ctx.tenant_id, ctx.user_id, &req, &state.db).await?;
+    let user = UserService::update(id, ctx.tenant_id, ctx.user_id, &req, &state.db).await?;
     Ok(Json(ApiResponse::ok(user)))
 }
 
@@ -181,8 +184,7 @@ where
     require_permission(&ctx, "user.update")?;
 
     let roles =
-        UserService::assign_roles(id, ctx.tenant_id, ctx.user_id, &req.role_ids, &state.db)
-            .await?;
+        UserService::assign_roles(id, ctx.tenant_id, ctx.user_id, &req.role_ids, &state.db).await?;
 
     Ok(Json(ApiResponse::ok(AssignRolesResp { roles })))
 }