refactor(misskey-games): Misskey Games系パッケージのlint修正＋Lint CI整備 (#14612)

* chore(lint): Fix linting in misskey-reversi

(cherry picked from commit 894934a1a7743472b2d051e2690007ae373efd76)

* chore(lint): Fix linting in misskey-bubble-game

(cherry picked from commit 1ba9c37a8d5e4ae6a98494026b87f6f6439790c7)

* enhance(gh): add lint ci for misskey games packages

* enhance(gh): fix lint ci

* fix

* revert some changes that nothing to do with lint rules

* fix

* lint fixes

* refactor: strict type def

* lint fixes

* 🎨

* 🎨

---------

Co-authored-by: 4censord <mail@4censord.de>

packages/misskey-reversi/build.js

@@ -1,32 +1,32 @@
-import * as esbuild from "esbuild";
-import { build } from "esbuild";
-import { globSync } from "glob";
-import { execa } from "execa";
-import fs from "node:fs";
-import { fileURLToPath } from "node:url";
-import { dirname } from "node:path";
+import fs from 'node:fs';
+import { fileURLToPath } from 'node:url';
+import { dirname } from 'node:path';
+import * as esbuild from 'esbuild';
+import { build } from 'esbuild';
+import { globSync } from 'glob';
+import { execa } from 'execa';
 
 const _filename = fileURLToPath(import.meta.url);
 const _dirname = dirname(_filename);
 const _package = JSON.parse(fs.readFileSync(_dirname + '/package.json', 'utf-8'));
 
-const entryPoints = globSync("./src/**/**.{ts,tsx}");
+const entryPoints = globSync('./src/**/**.{ts,tsx}');
 
 /** @type {import('esbuild').BuildOptions} */
 const options = {
 	entryPoints,
 	minify: process.env.NODE_ENV === 'production',
-	outdir: "./built",
-	target: "es2022",
-	platform: "browser",
-	format: "esm",
+	outdir: './built',
+	target: 'es2022',
+	platform: 'browser',
+	format: 'esm',
 	sourcemap: 'linked',
 };
 
 // built配下をすべて削除する
 fs.rmSync('./built', { recursive: true, force: true });
 
-if (process.argv.map(arg => arg.toLowerCase()).includes("--watch")) {
+if (process.argv.map(arg => arg.toLowerCase()).includes('--watch')) {
 	await watchSrc();
 } else {
 	await buildSrc();
@@ -36,7 +36,7 @@ async function buildSrc() {
 	console.log(`[${_package.name}] start building...`);
 
 	await build(options)
-		.then(it => {
+		.then(() => {
 			console.log(`[${_package.name}] build succeeded.`);
 		})
 		.catch((err) => {
@@ -65,7 +65,7 @@ function buildDts() {
 		{
 			stdout: process.stdout,
 			stderr: process.stderr,
-		}
+		},
 	);
 }
 
@@ -86,7 +86,7 @@ async function watchSrc() {
 		},
 	}];
 
-	console.log(`[${_package.name}] start watching...`)
+	console.log(`[${_package.name}] start watching...`);
 
 	const context = await esbuild.context({ ...options, plugins });
 	await context.watch();

packages/misskey-reversi/eslint.config.js

@@ -1,6 +1,7 @@
 import tsParser from '@typescript-eslint/parser';
 import sharedConfig from '../shared/eslint.config.js';
 
+// eslint-disable-next-line import/no-default-export
 export default [
 	...sharedConfig,
 	{

packages/misskey-reversi/src/game.ts

@@ -53,9 +53,13 @@ export class Game {
 
 		//#region Options
 		this.opts = opts;
+
+		/* eslint-disable @typescript-eslint/no-unnecessary-condition */
 		if (this.opts.isLlotheo == null) this.opts.isLlotheo = false;
 		if (this.opts.canPutEverywhere == null) this.opts.canPutEverywhere = false;
 		if (this.opts.loopedBoard == null) this.opts.loopedBoard = false;
+		/* eslint-enable */
+
 		//#endregion
 
 		//#region Parse map data
@@ -123,12 +127,13 @@ export class Game {
 		// ターン計算
 		this.turn =
 			this.canPutSomewhere(!this.prevColor) ? !this.prevColor :
-			this.canPutSomewhere(this.prevColor!) ? this.prevColor :
+			this.canPutSomewhere(this.prevColor!) ? this.prevColor : //eslint-disable-line @typescript-eslint/no-non-null-assertion
 			null;
 	}
 
 	public undo() {
-		const undo = this.logs.pop()!;
+		const undo = this.logs.pop();
+		if (undo == null) return;
 		this.prevColor = undo.color;
 		this.prevPos = undo.pos;
 		this.board[undo.pos] = null;
@@ -183,7 +188,7 @@ export class Game {
 
 			const found: number[] = []; // 挟めるかもしれない相手の石を入れておく配列
 			let [x, y] = this.posToXy(initPos);
-			while (true) {
+			while (true) { // eslint-disable-line @typescript-eslint/no-unnecessary-condition
 				[x, y] = nextPos(x, y);
 
 				// 座標が指し示す位置がボード外に出たとき