[OGUI-1779] Linting for backend

.github/workflows/grpc-wrapper.yml

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+name: Grpc Wrapper
+
+on:
+  pull_request:
+    branches: ["**"]
+    paths:
+      - "Tokenization/backend/wrapper/**"
+      - ".github/workflows/grpc-wrapper.yml"
+
+concurrency:
+  group: wrapper-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+
+    defaults:
+      run:
+        working-directory: Tokenization/backend/wrapper
+
+    steps:
+      - uses: actions/checkout@v4
+      - name: Setup Node
+        uses: actions/setup-node@v4
+        with:
+          node-version: "22.x"
+
+      - name: Install dependencies
+        run: npm ci
+
+      - name: Run Jest
+        run: npm run test

.github/workflows/tokenization.yml

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+name: Tokenization
+on:
+  pull_request:
+    paths:
+      - 'Tokenization/**/*'
+      - '.github/workflows/tokenization.yml'
+  push:
+    branches:
+      - 'main'
+      - 'dev'
+
+jobs:
+  lint-check-wrapper:
+    name: Check eslint rules for backend on ubuntu-latest
+    runs-on: ubuntu-latest
+    timeout-minutes: 6
+    steps:
+      - uses: actions/checkout@v4
+      - name: Setup node
+        uses: actions/setup-node@v4
+        with:
+          node-version: '22.x'
+      - run: (cd Tokenization/backend/wrapper; npm i) 
+      - run: (cd Tokenization/backend/wrapper; npm run lint)
+
+  lint-check-webapp:
+    name: Check eslint rules for webapp on ubuntu-latest
+    runs-on: ubuntu-latest
+    timeout-minutes: 6
+    steps:
+      - uses: actions/checkout@v4
+      - name: Setup node
+        uses: actions/setup-node@v4
+        with:
+          node-version: '22.x'
+      - run: (cd Tokenization/webapp; npm i )
+      - run: (cd Tokenization/webapp; npm run typecheck)
+      - run: (cd Tokenization/webapp; npm run lint)
+
+  unit-tests-wrapper:
+    name: Unit tests for wrapper 
+        runs-on: ubuntu-latest
+    timeout-minutes: 6
+    steps:
+      - uses: actions/checkout@v4
+      - name: Setup node
+        uses: actions/setup-node@v4
+        with:
+          node-version: '22.x'
+      - run: (cd Tokenization/backend/wrapper; npm i )
+      - run: (cd Tokenization/backend/wrapper; npm run test)
+
+  ui-tests:
+    name: UI-tests for webapp application
+    runs-on: ubuntu-latest
+    timeout-minutes: 6
+    steps:
+      - uses: actions/checkout@v4
+      - name: Setup node
+        uses: actions/setup-node@v4
+        with:
+          node-version: '22.x'
+      - run: (cd Tokenization/webapp; npm run docker:test)

Tokenization/.dockerignore

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+node_modules/
+.react-router/

Tokenization/Dockerfile

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+# ---- Base ----
+FROM node:22-alpine AS base
+WORKDIR /var/workspace
+
+# ---- Dependencies (for production) ----
+FROM base AS dependencies
+COPY webapp/package*.json ./
+RUN npm ci --only=production && npm cache clean --force
+
+# ---- Dev Dependencies (for tests) ----
+FROM base AS dev-dependencies
+
+# Installs packages required for Puppeteer 
+RUN apk add --no-cache \
+    chromium \
+    freetype \
+    freetype-dev \
+    harfbuzz \
+    ca-certificates
+
+ENV PUPPETEER_SKIP_CHROMIUM_DOWNLOAD=true
+ENV PUPPETEER_EXECUTABLE_PATH=/usr/bin/chromium-browser
+
+COPY webapp . 
+
+RUN npm --silent install
+
+# ---- Build  ----
+FROM base AS build
+COPY webapp/package*.json ./
+RUN npm i --only=production && npm cache clean --force
+COPY webapp .
+RUN npm run build
+
+# ---- Test ----
+FROM dev-dependencies AS test
+CMD ["npm", "run", "test"]
+
+# ---- Coverage ----
+FROM dev-dependencies AS coverage
+CMD ["npm", "run", "coverage"]
+
+# ---- Production  ----
+FROM nginx:alpine AS production
+COPY --from=build /var/workspace/build/client /usr/share/nginx/html
+COPY docker/provisioning/nginx/conf.d/production.conf /etc/nginx/nginx.conf
+EXPOSE 80
+CMD ["nginx", "-g", "daemon off;"]
+
+FROM nginx:1.27 AS reverse-proxy
+COPY ./docker/provisioning/nginx/conf.d/default.conf /etc/nginx/conf.d
+EXPOSE 8080
+

Tokenization/backend/wrapper/.gitignore

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+dist/
+node_modules/
+run_tests/

Tokenization/backend/wrapper/eslint.config.js

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+/**
+ * @license
+ * Copyright 2019-2020 CERN and copyright holders of ALICE O2.
+ * See http://alice-o2.web.cern.ch/copyright for details of the copyright holders.
+ * All rights not expressly granted are reserved.
+ *
+ * This software is distributed under the terms of the GNU General Public
+ * License v3 (GPL Version 3), copied verbatim in the file "COPYING".
+ *
+ * In applying this license CERN does not waive the privileges and immunities
+ * granted to it by virtue of its status as an Intergovernmental Organization
+ * or submit itself to any jurisdiction.
+ */
+
+const globals = require('globals');
+const pluginJs = require('@eslint/js');
+const tseslint = require('typescript-eslint');
+const jsdoc = require('eslint-plugin-jsdoc');
+const stylisticTs = require('@stylistic/eslint-plugin-ts');
+const stylisticJs = require('@stylistic/eslint-plugin-js');
+
+const licenseHeader = `/**
+ * @license
+ * Copyright 2019-2020 CERN and copyright holders of ALICE O2.
+ * See http://alice-o2.web.cern.ch/copyright for details of the copyright holders.
+ * All rights not expressly granted are reserved.
+ *
+ * This software is distributed under the terms of the GNU General Public
+ * License v3 (GPL Version 3), copied verbatim in the file "COPYING".
+ *
+ * In applying this license CERN does not waive the privileges and immunities
+ * granted to it by virtue of its status as an Intergovernmental Organization
+ * or submit itself to any jurisdiction.
+ */`;
+
+const licenseHeaderRule = {
+  meta: {
+    type: 'layout',
+    docs: {
+      description: 'Require license header at the top of files',
+      category: 'Stylistic Issues',
+    },
+    fixable: 'code',
+    schema: [],
+  },
+  create(context) {
+    return {
+      Program(node) {
+        const sourceCode = context.getSourceCode();
+        const text = sourceCode.getText();
+
+        if (text.includes('@license')) {
+          return;
+        }
+
+        context.report({
+          node,
+          message: 'Missing license header',
+          fix(fixer) {
+            return fixer.insertTextBefore(node, licenseHeader + '\n\n');
+          },
+        });
+      },
+    };
+  },
+};
+
+module.exports = [
+  {
+    ignores: [
+      '**/test/',
+      '**/tests/',
+      '**/node_modules/',
+      '**/build/',
+      '**/dist/',
+      '**/database/data/',
+      '**/lib/public/assets/',
+      '**/cpp-api-client/',
+      '**/tmp/',
+      '**/.nyc_output/',
+    ],
+  },
+
+  pluginJs.configs.recommended,
+  ...tseslint.configs.recommended,
+
+
+  {
+    files: ['**/*.{js,ts}'],
+    plugins: {
+      '@typescript-eslint': tseslint.plugin,
+      'jsdoc': jsdoc,
+      '@stylistic/ts': stylisticTs,
+      '@stylistic/js': stylisticJs,
+      'custom': { 
+        rules: {
+          'license-header': licenseHeaderRule,
+        },
+      },
+    },
+
+    languageOptions: {
+      parser: tseslint.parser,
+      parserOptions: {
+        ecmaVersion: 'latest',
+        sourceType: 'commonjs',
+        project: ['./tsconfig.json'], 
+      },
+      globals: {
+        ...globals.node,
+        ...globals.es2021,
+        ...globals.commonjs,
+      },
+    },
+
+    settings: {
+      jsdoc: {
+        mode: 'typescript',
+        tagNamePreference: {
+          returns: 'return',
+        },
+      },
+    },
+
+    rules: {
+      // === CUSTOM RULES ===
+      'custom/license-header': 'error',
+
+      // === TYPESCRIPT SPECIFIC RULES ===
+      '@typescript-eslint/no-unused-vars': [
+        'error',
+        {
+          argsIgnorePattern: '^_',
+          varsIgnorePattern: '^_',
+          ignoreRestSiblings: true,
+        },
+      ],
+      '@typescript-eslint/no-explicit-any': 'warn',
+      '@typescript-eslint/prefer-nullish-coalescing': 'error',
+      '@typescript-eslint/prefer-optional-chain': 'error',
+      '@typescript-eslint/no-non-null-assertion': 'warn',
+      '@typescript-eslint/consistent-type-imports': 'error',
+
+      // === GENERAL CODE QUALITY ===
+      'arrow-body-style': ['error', 'as-needed'],
+      'curly': 'error',
+      'no-console': 'error',
+      'no-implicit-coercion': 'error',
+      'no-return-assign': 'error',
+      'no-var': 'error',
+      'one-var': ['error', 'never'],
+      'prefer-const': 'error',
+      'prefer-destructuring': 'warn',
+      'prefer-template': 'error',
+      'radix': 'error',
+
+      // === COMMENTS AND DOCUMENTATION ===
+      'capitalized-comments': ['error', 'always'],
+      'jsdoc/require-description': 'error',
+      'jsdoc/require-returns': 'off',
+      'jsdoc/require-jsdoc': [
+        'error',
+        {
+          require: {
+            FunctionDeclaration: true,
+            MethodDefinition: true,
+            ClassDeclaration: true,
+            ArrowFunctionExpression: false,
+            FunctionExpression: true,
+          },
+        },
+      ],
+
+      // === TYPESCRIPT STYLISTIC RULES ===
+      '@stylistic/ts/comma-dangle': ['error', 'always-multiline'],
+      '@stylistic/ts/comma-spacing': ['error', { before: false, after: true }],
+      '@stylistic/ts/indent': ['error', 2],
+      '@stylistic/ts/quotes': ['error', 'single', { avoidEscape: true }],
+      '@stylistic/ts/semi': 'error',
+      '@stylistic/ts/space-before-blocks': 'error',
+      '@stylistic/ts/space-infix-ops': 'error',
+      '@stylistic/ts/object-curly-spacing': ['error', 'always'],
+      '@stylistic/ts/keyword-spacing': 'error',
+      '@stylistic/ts/type-annotation-spacing': 'error',
+      '@stylistic/ts/member-delimiter-style': 'error',
+
+      // === JAVASCRIPT STYLISTIC RULES ===
+      '@stylistic/js/array-bracket-spacing': ['error', 'never'],
+      '@stylistic/js/brace-style': ['error', '1tbs'],
+      '@stylistic/js/no-trailing-spaces': 'error',
+      '@stylistic/js/eol-last': ['error', 'always'],
+      '@stylistic/js/max-len': ['error', { code: 145 }],
+      '@stylistic/js/no-multiple-empty-lines': ['error', { 'max': 1, 'maxEOF': 0 }],
+
+      // === DISABLED RULES ===
+      'no-magic-numbers': 'off',
+      'sort-keys': 'off',
+      'sort-imports': 'off',
+      'sort-vars': 'off',
+    },
+  },
+  {
+    files: ['**/*.test.{js,ts}', '**/test/**/*.{js,ts}'],
+    languageOptions: {
+      globals: {
+        ...globals.jest,
+
+        describe: 'readonly',
+        it: 'readonly',
+        expect: 'readonly',
+        beforeEach: 'readonly',
+        afterEach: 'readonly',
+      },
+    },
+
+    rules: {
+      'no-console': 'off', 
+      'jsdoc/require-jsdoc': 'off',
+    },
+  },
+];

Tokenization/backend/wrapper/jest.config.ts

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+import type { Config } from "jest";
+
+const config: Config = {
+  preset: "ts-jest",
+  testEnvironment: "node",
+  testMatch: ["**/test/**/*.test.ts"],
+  moduleFileExtensions: ["ts", "js", "json"],
+  moduleNameMapper: {
+    "^@/(.*)$": "<rootDir>/src/$1",
+  },
+};
+
+export default config;