Add Gea (geajs.com) framework to the benchmark suite

.github/docs/apps.md

@@ -1,6 +1,6 @@
 # Framework Applications
 
-This project contains the same weather application built using 14 different JavaScript frameworks. Each implementation provides identical functionality but uses the specific patterns and approaches of its framework.
+This project contains the same weather application built using 15 different JavaScript frameworks. Each implementation provides identical functionality but uses the specific patterns and approaches of its framework.
 
 ## Available Frameworks
 
@@ -19,6 +19,7 @@ The project includes implementations for:
 **VanJS** - Ultra-small vanilla framework
 **Lume.js** - Minimal reactive state library with no build step
 **Astro** - Static-first with zero JavaScript by default and opt-in islands
+**Gea** - Compiler-first reactive framework with surgical DOM updates
 **Vanilla** - Pure JavaScript without any framework
 
 Each app lives in its own directory under `apps/{framework}/` and can be developed, built, and tested independently.

apps/geajs/README.md

@@ -0,0 +1,97 @@
+<!-- start_header -->
+<h1 align="center">🌍 Weather Front - Gea.js</h1>
+
+<p align="center">
+  <img width="64" src="https://raw.githubusercontent.com/lissy93/framework-benchmarks/refs/heads/main/assets/favicon.png" /><br>
+  <i>A tiny weather app</i>
+  <br>
+  <b><a href="/">🚀 Demo</a> ● <a href="https://frontend-framework-benchmarks.as93.net">📊 Results</a></b>
+  <br><br>
+  <a href="https://geajs.com/" target="_blank"><img src="https://img.shields.io/badge/Framework-Gea.js-00e5ff?logo=googleearth&logoColor=fff&labelColor=00e5ff" /></a>
+  <a href="https://github.com/Lissy93/framework-benchmarks/blob/main/LICENSE"><img src="https://img.shields.io/badge/License-MIT-AE56FF?logo=googledocs&logoColor=fff&labelColor=8A2BE2" /></a>
+  <a href="https://github.com/lissy93"><img src="https://img.shields.io/badge/Author-Lissy93-EA4AAA?logo=githubsponsors&logoColor=fff&labelColor=E31591" /></a>
+</p>
+<!-- end_header -->
+
+<!-- start_about -->
+
+## About
+
+<img align="right" src="/assets/screenshot.png" width="400">
+
+This is a simple weather app, built in [Gea.js](https://geajs.com/) (as well as also [10 other frontend frameworks](/)) in order to review, compare and benchmark frontend web frameworks.
+
+- 🌦️ Live weather conditions
+- 📅 7-day weather forecast
+- 🔍 City search functionality
+- 📍 Geolocation support
+- 💾 Persistent location storage
+- 📱 Responsive design
+- ♿ Accessible interface
+- 🎨 Multi-theme support
+- 🧪 Fully unit tested
+- 🌐 Internationalized
+
+<!-- end_about -->
+
+<!-- start_status -->
+
+## Status
+
+| Task | Status |
+|---|---|
+| **Test** - Executes all e2e and unit tests | [![Test Status](https://raw.githubusercontent.com/lissy93/framework-benchmarks/refs/heads/badges/test-geajs.svg)](https://github.com/lissy93/framework-benchmarks/actions/workflows/test.yml) |
+| **Lint** - Verifies code style and quality | [![Lint Status](https://raw.githubusercontent.com/lissy93/framework-benchmarks/refs/heads/badges/lint-geajs.svg)](https://github.com/lissy93/framework-benchmarks/actions/workflows/lint.yml) |
+| **Build** - Builds and deploys the app | [![Build Status](https://raw.githubusercontent.com/lissy93/framework-benchmarks/refs/heads/badges/build-geajs.svg)](https://github.com/lissy93/framework-benchmarks/actions/workflows/build.yml) |
+
+<!-- end_status -->
+
+<!-- start_usage -->
+
+## Usage
+
+First, follow the [repo setup instructions](https://github.com/lissy93/framework-benchmarks?tab=readme-ov-file#usage). Then `cd apps/geajs` and use the following commands:
+
+```bash
+npm run dev    # Start dev server (vite --port 3000)
+npm test       # Run tests
+npm run lint   # Run lint checks
+npm build      # Build for production (vite build)
+npm start      # Serve built prod app (from ./dist)
+```
+
+For troubleshooting, use `npm run verify` from the root of the project.
+
+<!-- end_usage -->
+
+<!-- start_framework_specific -->
+#### Compiler-Wired Reactivity
+Gea doesn't use signals, hooks, dependency arrays, or a virtual DOM. Components are ordinary JavaScript — classes with state and methods, getters for computed values — and [`@geajs/vite-plugin`](https://www.npmjs.com/package/@geajs/vite-plugin) analyses the JSX at build time, works out which DOM nodes depend on which state paths, and generates the reactive wiring. At runtime only the affected nodes are patched.
+
+#### A Proxy-Based Store
+[`weather-store.js`](https://github.com/Lissy93/framework-benchmarks/blob/main/apps/geajs/src/weather-store.js) is a singleton class extending `Store`. Its fields (`searchQuery`, `isLoading`, `hasError`, `weatherData`, `activeForecastIndex`) are made reactive through a deep Proxy, so mutations are plain assignments like `this.isLoading = true`.
+
+#### Getters as Computed Values
+Derived state such as `showContent`, `locationLabel`, `currentTemperature` and `forecastDays` are ordinary JavaScript getters on the store. The compiler tracks which state paths each getter reads and re-evaluates the dependent DOM bindings when those paths change.
+
+#### Class and Function Components
+Each UI piece, like [`SearchForm.jsx`](https://github.com/Lissy93/framework-benchmarks/blob/main/apps/geajs/src/components/SearchForm.jsx) and [`CurrentWeather.jsx`](https://github.com/Lissy93/framework-benchmarks/blob/main/apps/geajs/src/components/CurrentWeather.jsx), extends `Component` and returns JSX from `template()`, using HTML-style attributes (`class`, `for`) and native-style event bindings (`click={...}`, `submit={...}`) wired through document-level event delegation. Stateless UI like [`LoadingState.jsx`](https://github.com/Lissy93/framework-benchmarks/blob/main/apps/geajs/src/components/LoadingState.jsx) is a plain function which the compiler converts to a class component at build time.
+
+#### Conditional Rendering and Keyed Lists
+`{condition && <X />}` in [`WeatherDisplay.jsx`](https://github.com/Lissy93/framework-benchmarks/blob/main/apps/geajs/src/components/WeatherDisplay.jsx) compiles into `<template>` markers with swap logic, so hidden branches cost no DOM nodes. The 7-day forecast in [`Forecast.jsx`](https://github.com/Lissy93/framework-benchmarks/blob/main/apps/geajs/src/components/Forecast.jsx) maps `weatherStore.forecastDays` to `<ForecastItem key={day.date} day={day} />`, and list changes are reconciled per-item rather than re-rendered.
+<!-- end_framework_specific -->
+
+## About Gea
+<!-- start_framework_description -->
+Gea is a compiler-first reactive UI framework whose runtime and compiler are vertically integrated: JSX becomes HTML string templates, state tracking happens through deep proxies, and the generated `observe()` calls patch only the DOM nodes that depend on changed data — no diffing or reconciliation overhead. It can also run [without a build step](https://geajs.com/docs/browser-usage.html) from a CDN global (~4.1 kB gzipped), where the reactivity glue is written by hand instead of by the compiler.
+
+<!-- end_framework_description -->
+
+<!-- start_license -->
+
+## License
+
+Weather-Front is licensed under [MIT](https://github.com/lissy93/framework-benchmarks/blob/main/LICENSE) © Alicia Sykes 2025.<br>
+View [Attributions](https://github.com/lissy93/framework-benchmarks?tab=readme-ov-file#attributions) for credits, thanks and contributors.
+
+<!-- end_license -->

apps/geajs/index.html

@@ -0,0 +1,17 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>Weather App - Gea</title>
+    <link rel="stylesheet" href="/styles/design-system.css">
+    <link rel="stylesheet" href="/styles/variables.css">
+    <link rel="stylesheet" href="/styles/base.css">
+    <link rel="stylesheet" href="/styles/components.css">
+    <link rel="stylesheet" href="styles.css">
+    <script type="module" src="./src/main.js"></script>
+</head>
+<body>
+    <div id="app"></div>
+</body>
+</html>