chore: fix eslint in blocksuite (#9232)

blocksuite/affine/block-surface/src/utils/rough/canvas.ts

@@ -9,11 +9,11 @@ import { RoughGenerator } from './generator.js';
 import type { Point } from './geometry.js';
 
 export class RoughCanvas {
-  private canvas: HTMLCanvasElement;
+  private readonly canvas: HTMLCanvasElement;
 
-  private ctx: CanvasRenderingContext2D;
+  private readonly ctx: CanvasRenderingContext2D;
 
-  private gen: RoughGenerator;
+  private readonly gen: RoughGenerator;
 
   get generator(): RoughGenerator {
     return this.gen;

blocksuite/affine/block-surface/src/utils/rough/fillers/dashed-filler.ts

@@ -5,7 +5,7 @@ import type { PatternFiller, RenderHelper } from './filler-interface.js';
 import { polygonHachureLines } from './scan-line-hachure.js';
 
 export class DashedFiller implements PatternFiller {
-  private helper: RenderHelper;
+  private readonly helper: RenderHelper;
 
   constructor(helper: RenderHelper) {
     this.helper = helper;

blocksuite/affine/block-surface/src/utils/rough/fillers/dot-filler.ts

@@ -5,7 +5,7 @@ import type { PatternFiller, RenderHelper } from './filler-interface.js';
 import { polygonHachureLines } from './scan-line-hachure.js';
 
 export class DotFiller implements PatternFiller {
-  private helper: RenderHelper;
+  private readonly helper: RenderHelper;
 
   constructor(helper: RenderHelper) {
     this.helper = helper;

blocksuite/affine/block-surface/src/utils/rough/fillers/hachure-filler.ts

@@ -4,7 +4,7 @@ import type { PatternFiller, RenderHelper } from './filler-interface.js';
 import { polygonHachureLines } from './scan-line-hachure.js';
 
 export class HachureFiller implements PatternFiller {
-  private helper: RenderHelper;
+  private readonly helper: RenderHelper;
 
   constructor(helper: RenderHelper) {
     this.helper = helper;

blocksuite/affine/block-surface/src/utils/rough/fillers/zigzag-line-filler.ts

@@ -5,7 +5,7 @@ import type { PatternFiller, RenderHelper } from './filler-interface.js';
 import { polygonHachureLines } from './scan-line-hachure.js';
 
 export class ZigZagLineFiller implements PatternFiller {
-  private helper: RenderHelper;
+  private readonly helper: RenderHelper;
 
   constructor(helper: RenderHelper) {
     this.helper = helper;

blocksuite/affine/block-surface/src/utils/rough/generator.ts

@@ -28,7 +28,7 @@ import {
 const NOS = 'none';
 
 export class RoughGenerator {
-  private config: Config;
+  private readonly config: Config;
 
   defaultOptions: ResolvedOptions = {
     maxRandomnessOffset: 2,

blocksuite/affine/block-surface/src/utils/rough/svg.ts

@@ -10,9 +10,9 @@ import { RoughGenerator } from './generator.js';
 import type { Point } from './geometry.js';
 
 export class RoughSVG {
-  private gen: RoughGenerator;
+  private readonly gen: RoughGenerator;
 
-  private svg: SVGSVGElement;
+  private readonly svg: SVGSVGElement;
 
   get generator(): RoughGenerator {
     return this.gen;