Set up comprehensive frontend testing infrastructure

- Install Jest for unit testing with React Testing Library
- Install Playwright for end-to-end testing
- Configure Jest with proper TypeScript support and module mapping
- Create test setup files and utilities for both unit and e2e tests

Components:
* Jest configuration with coverage thresholds
* Playwright configuration with browser automation
* Unit tests for LoginForm, AuthContext, and useSocketIO hook
* E2E tests for authentication, dashboard, and agents workflows
* GitHub Actions workflow for automated testing
* Mock data and API utilities for consistent testing
* Test documentation with best practices

Testing features:
- Unit tests with 70% coverage threshold
- E2E tests with API mocking and user journey testing
- CI/CD integration for automated test runs
- Cross-browser testing support with Playwright
- Authentication system testing end-to-end

🚀 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

frontend/node_modules/@csstools/css-calc/CHANGELOG.md

@@ -0,0 +1,10 @@
+# Changes to CSS Calc
+
+### 2.1.4
+
+_May 27, 2025_
+
+- Updated [`@csstools/css-tokenizer`](https://github.com/csstools/postcss-plugins/tree/main/packages/css-tokenizer) to [`3.0.4`](https://github.com/csstools/postcss-plugins/tree/main/packages/css-tokenizer/CHANGELOG.md#304) (patch)
+- Updated [`@csstools/css-parser-algorithms`](https://github.com/csstools/postcss-plugins/tree/main/packages/css-parser-algorithms) to [`3.0.5`](https://github.com/csstools/postcss-plugins/tree/main/packages/css-parser-algorithms/CHANGELOG.md#305) (patch)
+
+[Full CHANGELOG](https://github.com/csstools/postcss-plugins/tree/main/packages/css-calc/CHANGELOG.md)

frontend/node_modules/@csstools/css-calc/LICENSE.md

@@ -0,0 +1,20 @@
+The MIT License (MIT)
+
+Copyright 2022 Romain Menke, Antonio Laguna <antonio@laguna.es>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+the Software, and to permit persons to whom the Software is furnished to do so,
+subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

frontend/node_modules/@csstools/css-calc/README.md

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+# CSS Calc <img src="https://cssdb.org/images/css.svg" alt="for CSS" width="90" height="90" align="right">
+
+[<img alt="npm version" src="https://img.shields.io/npm/v/@csstools/css-calc.svg" height="20">][npm-url]
+[<img alt="Build Status" src="https://github.com/csstools/postcss-plugins/actions/workflows/test.yml/badge.svg?branch=main" height="20">][cli-url]
+[<img alt="Discord" src="https://shields.io/badge/Discord-5865F2?logo=discord&logoColor=white">][discord]
+
+Implemented from : https://drafts.csswg.org/css-values-4/ on 2023-02-17
+
+## Usage
+
+Add [CSS calc] to your project:
+
+```bash
+npm install @csstools/css-calc @csstools/css-parser-algorithms @csstools/css-tokenizer --save-dev
+```
+
+### With string values :
+
+```mjs
+import { calc } from '@csstools/css-calc';
+
+// '20'
+console.log(calc('calc(10 * 2)'));
+```
+
+### With component values :
+
+```mjs
+import { stringify, tokenizer } from '@csstools/css-tokenizer';
+import { parseCommaSeparatedListOfComponentValues } from '@csstools/css-parser-algorithms';
+import { calcFromComponentValues } from '@csstools/css-calc';
+
+const t = tokenizer({
+	css: 'calc(10 * 2)',
+});
+
+const tokens = [];
+
+{
+	while (!t.endOfFile()) {
+		tokens.push(t.nextToken());
+	}
+
+	tokens.push(t.nextToken()); // EOF-token
+}
+
+const result = parseCommaSeparatedListOfComponentValues(tokens, {});
+
+// filter or mutate the component values
+
+const calcResult = calcFromComponentValues(result, { precision: 5, toCanonicalUnits: true });
+
+// filter or mutate the component values even further
+
+const calcResultStr = calcResult.map((componentValues) => {
+	return componentValues.map((x) => stringify(...x.tokens())).join('');
+}).join(',');
+
+// '20'
+console.log(calcResultStr);
+```
+
+### Options
+
+#### `precision` :
+
+The default precision is fairly high.
+It aims to be high enough to make rounding unnoticeable in the browser.
+
+You can set it to a lower number to suit your needs.
+
+```mjs
+import { calc } from '@csstools/css-calc';
+
+// '0.3'
+console.log(calc('calc(1 / 3)', { precision: 1 }));
+// '0.33'
+console.log(calc('calc(1 / 3)', { precision: 2 }));
+```
+
+#### `globals` :
+
+Pass global values as a map of key value pairs.
+
+> Example : Relative color syntax (`lch(from pink calc(l / 2) c h)`) exposes color channel information as ident tokens.
+> By passing globals for `l`, `c` and `h` it is possible to solve nested `calc()`'s.
+
+```mjs
+import { calc } from '@csstools/css-calc';
+
+const globals = new Map([
+	['a', '10px'],
+	['b', '2rem'],
+]);
+
+// '20px'
+console.log(calc('calc(a * 2)', { globals: globals }));
+// '6rem'
+console.log(calc('calc(b * 3)', { globals: globals }));
+```
+
+#### `toCanonicalUnits` :
+
+By default this package will try to preserve units.
+The heuristic to do this is very simplistic.
+We take the first unit we encounter and try to convert other dimensions to that unit.
+
+This better matches what users expect from a CSS dev tool.
+
+If you want to have outputs that are closes to CSS serialized values you can pass `toCanonicalUnits: true`.
+
+```mjs
+import { calc } from '@csstools/css-calc';
+
+// '20hz'
+console.log(calc('calc(0.01khz + 10hz)', { toCanonicalUnits: true }));
+
+// '20hz'
+console.log(calc('calc(10hz + 0.01khz)', { toCanonicalUnits: true }));
+
+// '0.02khz' !!!
+console.log(calc('calc(0.01khz + 10hz)', { toCanonicalUnits: false }));
+
+// '20hz'
+console.log(calc('calc(10hz + 0.01khz)', { toCanonicalUnits: false }));
+```
+
+[cli-url]: https://github.com/csstools/postcss-plugins/actions/workflows/test.yml?query=workflow/test
+[discord]: https://discord.gg/bUadyRwkJS
+[npm-url]: https://www.npmjs.com/package/@csstools/css-calc
+
+[CSS calc]: https://github.com/csstools/postcss-plugins/tree/main/packages/css-calc

frontend/node_modules/@csstools/css-calc/dist/index.d.ts

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+import type { ComponentValue } from '@csstools/css-parser-algorithms';
+import type { TokenDimension } from '@csstools/css-tokenizer';
+import type { TokenNumber } from '@csstools/css-tokenizer';
+import type { TokenPercentage } from '@csstools/css-tokenizer';
+
+export declare function calc(css: string, options?: conversionOptions): string;
+
+export declare function calcFromComponentValues(componentValuesList: Array<Array<ComponentValue>>, options?: conversionOptions): Array<Array<ComponentValue>>;
+
+export declare type conversionOptions = {
+    /**
+     * Pass global values as a map of key value pairs.
+     */
+    globals?: GlobalsWithStrings;
+    /**
+     * The default precision is fairly high.
+     * It aims to be high enough to make rounding unnoticeable in the browser.
+     * You can set it to a lower number to suite your needs.
+     */
+    precision?: number;
+    /**
+     * By default this package will try to preserve units.
+     * The heuristic to do this is very simplistic.
+     * We take the first unit we encounter and try to convert other dimensions to that unit.
+     *
+     * This better matches what users expect from a CSS dev tool.
+     *
+     * If you want to have outputs that are closes to CSS serialized values you can set `true`.
+     */
+    toCanonicalUnits?: boolean;
+    /**
+     * Convert NaN, Infinity, ... into standard representable values.
+     */
+    censorIntoStandardRepresentableValues?: boolean;
+    /**
+     * Some percentages resolve against other values and might be negative or positive depending on context.
+     * Raw percentages are more likely to be safe to simplify outside of a browser context
+     *
+     * @see https://drafts.csswg.org/css-values-4/#calc-simplification
+     */
+    rawPercentages?: boolean;
+    /**
+     * The values used to generate random value cache keys.
+     */
+    randomCaching?: {
+        /**
+         * The name of the property the random function is used in.
+         */
+        propertyName: string;
+        /**
+         * N is the index of the random function among other random functions in the same property value.
+         */
+        propertyN: number;
+        /**
+         * An element ID identifying the element the style is being applied to.
+         * When omitted any `random()` call will not be computed.
+         */
+        elementID: string;
+        /**
+         * A document ID identifying the Document the styles are from.
+         * When omitted any `random()` call will not be computed.
+         */
+        documentID: string;
+    };
+};
+
+export declare type GlobalsWithStrings = Map<string, TokenDimension | TokenNumber | TokenPercentage | string>;
+
+export declare const mathFunctionNames: Set<string>;
+
+export { }

frontend/node_modules/@csstools/css-calc/package.json

@@ -0,0 +1,66 @@
+{
+	"name": "@csstools/css-calc",
+	"description": "Solve CSS math expressions",
+	"version": "2.1.4",
+	"contributors": [
+		{
+			"name": "Antonio Laguna",
+			"email": "antonio@laguna.es",
+			"url": "https://antonio.laguna.es"
+		},
+		{
+			"name": "Romain Menke",
+			"email": "romainmenke@gmail.com"
+		}
+	],
+	"license": "MIT",
+	"funding": [
+		{
+			"type": "github",
+			"url": "https://github.com/sponsors/csstools"
+		},
+		{
+			"type": "opencollective",
+			"url": "https://opencollective.com/csstools"
+		}
+	],
+	"engines": {
+		"node": ">=18"
+	},
+	"type": "module",
+	"main": "dist/index.cjs",
+	"module": "dist/index.mjs",
+	"exports": {
+		".": {
+			"import": {
+				"types": "./dist/index.d.ts",
+				"default": "./dist/index.mjs"
+			},
+			"require": {
+				"default": "./dist/index.cjs"
+			}
+		}
+	},
+	"files": [
+		"CHANGELOG.md",
+		"LICENSE.md",
+		"README.md",
+		"dist"
+	],
+	"peerDependencies": {
+		"@csstools/css-parser-algorithms": "^3.0.5",
+		"@csstools/css-tokenizer": "^3.0.4"
+	},
+	"scripts": {},
+	"homepage": "https://github.com/csstools/postcss-plugins/tree/main/packages/css-calc#readme",
+	"repository": {
+		"type": "git",
+		"url": "git+https://github.com/csstools/postcss-plugins.git",
+		"directory": "packages/css-calc"
+	},
+	"bugs": "https://github.com/csstools/postcss-plugins/issues",
+	"keywords": [
+		"calc",
+		"css"
+	]
+}