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/org_handler.rs

@@ -12,10 +12,10 @@ use crate::dto::{
     CreateDepartmentReq, CreateOrganizationReq, CreatePositionReq, DepartmentResp,
     OrganizationResp, PositionResp, UpdateDepartmentReq, UpdateOrganizationReq, UpdatePositionReq,
 };
-use erp_core::rbac::require_permission;
 use crate::service::dept_service::DeptService;
 use crate::service::org_service::OrgService;
 use crate::service::position_service::PositionService;
+use erp_core::rbac::require_permission;
 
 // --- Organization handlers ---
 
@@ -180,14 +180,7 @@ where
 {
     require_permission(&ctx, "department.update")?;
 
-    let dept = DeptService::update(
-        id,
-        ctx.tenant_id,
-        ctx.user_id,
-        &req,
-        &state.db,
-    )
-    .await?;
+    let dept = DeptService::update(id, ctx.tenant_id, ctx.user_id, &req, &state.db).await?;
     Ok(Json(ApiResponse::ok(dept)))
 }
 
@@ -284,14 +277,7 @@ where
 {
     require_permission(&ctx, "position.update")?;
 
-    let pos = PositionService::update(
-        id,
-        ctx.tenant_id,
-        ctx.user_id,
-        &req,
-        &state.db,
-    )
-    .await?;
+    let pos = PositionService::update(id, ctx.tenant_id, ctx.user_id, &req, &state.db).await?;
     Ok(Json(ApiResponse::ok(pos)))
 }