finish refactor pre merge

lib/engine/circleEngine.ts

@@ -1,7 +1,6 @@
 import maplibregl from "maplibre-gl";
 import { Geometry } from "@/lib/useEditorState";
-
-type ModeGetter = () => "idle" | "draw" | "select" | "add-point" | "add-line" | "add-path" | "add-circle";
+import type { ModeGetter } from "@/lib/engine/engineTypes";
 
 const EARTH_RADIUS_METERS = 6371008.8;
 const CIRCLE_SEGMENTS = 72;

lib/engine/drawingEngine.ts

@@ -1,7 +1,6 @@
 import maplibregl from "maplibre-gl";
 import { Geometry } from "@/lib/useEditorState";
-
-type ModeGetter = () => "idle" | "draw" | "select" | "add-point" | "add-line" | "add-path" | "add-circle";
+import type { ModeGetter } from "@/lib/engine/engineTypes";
 
 // Khởi tạo engine vẽ polygon tự do theo chuỗi click.
 export function initDrawing(

lib/engine/engineTypes.ts

@@ -0,0 +1,4 @@
+import type { EditorMode } from "@/lib/editor/session/sessionTypes";
+
+export type ModeGetter = () => EditorMode;
+

lib/engine/lineEngine.ts

@@ -1,7 +1,6 @@
 import maplibregl from "maplibre-gl";
 import { Geometry } from "@/lib/useEditorState";
-
-type ModeGetter = () => "idle" | "draw" | "select" | "add-point" | "add-line" | "add-path" | "add-circle";
+import type { ModeGetter } from "@/lib/engine/engineTypes";
 
 const EMPTY_PREVIEW: GeoJSON.FeatureCollection = {
     type: "FeatureCollection",

lib/engine/pathEngine.ts

@@ -1,7 +1,6 @@
 import maplibregl from "maplibre-gl";
 import { Geometry } from "@/lib/useEditorState";
-
-type ModeGetter = () => "idle" | "draw" | "select" | "add-point" | "add-line" | "add-path" | "add-circle";
+import type { ModeGetter } from "@/lib/engine/engineTypes";
 
 const EMPTY_PREVIEW: GeoJSON.FeatureCollection = {
     type: "FeatureCollection",

lib/engine/pointEngine.ts

@@ -1,7 +1,6 @@
 import maplibregl from "maplibre-gl";
 import { Geometry } from "@/lib/useEditorState";
-
-type ModeGetter = () => "idle" | "draw" | "select" | "add-point" | "add-line" | "add-path" | "add-circle";
+import type { ModeGetter } from "@/lib/engine/engineTypes";
 
 // Khởi tạo engine thêm point bằng click đơn.
 export function initPoint(

lib/engine/selectingEngine.ts

@@ -1,6 +1,5 @@
 import maplibregl from "maplibre-gl";
-
-type ModeGetter = () => "idle" | "draw" | "select" | "add-point" | "add-line" | "add-path" | "add-circle";
+import type { ModeGetter } from "@/lib/engine/engineTypes";
 
 // Khởi tạo engine chọn feature và context menu edit/delete.
 export function initSelect(