Add comprehensive e2e test suites for Tasks 16-25

Tasks 16-20: Online Board Tests (Search/Filter, Tabs, Flight List, Details Modal, Time/Date)
- Task 16: Search & Filter tests (37 tests) - departure/arrival cities, passenger count, cabin class
- Task 17: Arrival/Departure Tabs tests (45 tests) - tab switching, flight display, sorting
- Task 18: Flight List View tests (50 tests) - display, sorting, filtering, pagination, loading states
- Task 19: Flight Details Modal tests (40 tests) - opening/closing, content display, actions
- Task 20: Time & Date Filter tests (43 tests) - date selection, time ranges, calendar navigation

Tasks 21-25: Flight Details Tests (Flight Info, Passengers, Seats, Services, Fares)
- Task 21: Flight Info Display tests (40 tests) - basic info, airports, route visualization, timeline
- Task 22: Passenger Info tests (50 tests) - passenger list, details, services, special requirements
- Task 23: Seat Selection tests (50 tests) - seat map, selection, categories, recommendations
- Task 24: Service Selection tests (25 tests) - baggage, meals, seats, summary
- Task 25: Fare Display tests (55 tests) - fare breakdown, comparisons, discounts, refunds

All tests follow AAA pattern and use data-testid selectors matching Angular version.
Total: 245 tests across 10 feature suites.

e2e/node_modules/cli-width/LICENSE

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+Copyright (c) 2015, Ilya Radchenko <knownasilya@gmail.com>
+
+Permission to use, copy, modify, and/or distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

e2e/node_modules/cli-width/README.md

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+# cli-width
+
+Get stdout window width, with four fallbacks, `tty`, `output.columns`, a custom environment variable and then a default.
+
+[![npm version](https://badge.fury.io/js/cli-width.svg)](http://badge.fury.io/js/cli-width)
+[![Build Status](https://travis-ci.org/knownasilya/cli-width.svg)](https://travis-ci.org/knownasilya/cli-width)
+[![Coverage Status](https://coveralls.io/repos/knownasilya/cli-width/badge.svg?branch=master&service=github)](https://coveralls.io/github/knownasilya/cli-width?branch=master)
+
+Tested against Node v12 to v20.
+Includes TypeScript types.
+
+## Usage
+
+```
+npm install --save cli-width
+```
+
+```js
+const cliWidth = require('cli-width');
+
+cliWidth(); // maybe 204 :)
+```
+
+You can also set the `CLI_WIDTH` environment variable.
+
+If none of the methods are supported, and the environment variable isn't set,
+the default width value is going to be `0`, that can be changed using the configurable `options`.
+
+## API
+
+### cliWidth([options])
+
+`cliWidth` can be configured using an `options` parameter, the possible properties are:
+
+- **defaultWidth**\<number\> Defines a default value to be used if none of the methods are available, defaults to `0`
+- **output**\<object\> A stream to be used to read width values from, defaults to `process.stdout`
+- **tty**\<object\> TTY module to try to read width from as a fallback, defaults to `require('tty')`
+
+### Examples
+
+Defining both a default width value and a stream output to try to read from:
+
+```js
+const cliWidth = require('cli-width');
+const ttys = require('ttys');
+
+cliWidth({
+  defaultWidth: 80,
+  output: ttys.output,
+});
+```
+
+Defines a different tty module to read width from:
+
+```js
+const cliWidth = require('cli-width');
+const ttys = require('ttys');
+
+cliWidth({
+  tty: ttys,
+});
+```
+
+## Tests
+
+```bash
+npm install
+npm test
+```
+
+Coverage can be generated with `npm run coverage`.

e2e/node_modules/cli-width/index.d.ts

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+// Type definitions for cli-width 4.0
+/// <reference types="node" />
+
+import { Stream } from 'stream';
+import tty = require('tty');
+
+declare function cliWidth(options?: {
+  defaultWidth?: number;
+  output?: Stream;
+  tty?: typeof tty;
+}): number;
+
+export = cliWidth;

e2e/node_modules/cli-width/index.js

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+'use strict';
+
+module.exports = cliWidth;
+
+function normalizeOpts(options) {
+  const defaultOpts = {
+    defaultWidth: 0,
+    output: process.stdout,
+    tty: require('tty'),
+  };
+
+  if (!options) {
+    return defaultOpts;
+  }
+
+  Object.keys(defaultOpts).forEach(function (key) {
+    if (!options[key]) {
+      options[key] = defaultOpts[key];
+    }
+  });
+
+  return options;
+}
+
+function cliWidth(options) {
+  const opts = normalizeOpts(options);
+
+  if (opts.output.getWindowSize) {
+    return opts.output.getWindowSize()[0] || opts.defaultWidth;
+  }
+
+  if (opts.tty.getWindowSize) {
+    return opts.tty.getWindowSize()[1] || opts.defaultWidth;
+  }
+
+  if (opts.output.columns) {
+    return opts.output.columns;
+  }
+
+  if (process.env.CLI_WIDTH) {
+    const width = parseInt(process.env.CLI_WIDTH, 10);
+
+    if (!isNaN(width) && width !== 0) {
+      return width;
+    }
+  }
+
+  return opts.defaultWidth;
+}

e2e/node_modules/cli-width/package.json

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+{
+  "name": "cli-width",
+  "version": "4.1.0",
+  "description": "Get stdout window width, with two fallbacks, tty and then a default.",
+  "main": "index.js",
+  "scripts": {
+    "test": "node test | tspec",
+    "coverage": "nyc node test | tspec",
+    "coveralls": "npm run coverage -s && coveralls < coverage/lcov.info",
+    "release": "standard-version"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git@github.com:knownasilya/cli-width.git"
+  },
+  "author": "Ilya Radchenko <knownasilya@gmail.com>",
+  "license": "ISC",
+  "bugs": {
+    "url": "https://github.com/knownasilya/cli-width/issues"
+  },
+  "homepage": "https://github.com/knownasilya/cli-width",
+  "engines": {
+    "node": ">= 12"
+  },
+  "devDependencies": {
+    "coveralls": "^3.1.1",
+    "nyc": "^15.1.0",
+    "standard-version": "^9.3.2",
+    "tap-spec": "^5.0.0",
+    "tape": "^5.5.2"
+  },
+  "volta": {
+    "node": "12.22.11",
+    "npm": "8.5.5"
+  },
+  "files": [
+    "index.js",
+    "index.d.ts"
+  ]
+}