feat: replace pre-commit with husky (#163) (#164)

## Replace pre-commit with husky + lint-staged + commitlint

### Why

pre-commit requires Python, which is an unnecessary dependency for a
pure Node.js/Astro project. husky is the standard for git hooks in the
JS ecosystem and integrates natively with pnpm.

### Changes

- Removed `.pre-commit-config.yaml`
- Added `husky`, `lint-staged`, `@commitlint/cli`,
`@commitlint/config-conventional`
- `.husky/pre-commit`: runs `astro check` + `prettier --check` (via
lint-staged, only on staged files)
- `.husky/commit-msg`: validates conventional commits via commitlint
- Updated README: removed Python/pre-commit from requirements

### Same checks, same behavior

| Before (pre-commit) | After (husky) |
|---|---|
| `astro check` on commit | `astro check` on commit | | `prettier
--check` on commit | `prettier --check` on staged files | |
conventional-pre-commit | @commitlint/config-conventional |

### After merging

- Contributors only need `pnpm install` — hooks are configured
automatically via the `prepare` script.
- Python and the `env/` virtualenv are no longer needed. Each
contributor can delete their local `env/` directory.

Co-authored-by: dani herrera <ctrl.alt.d@gmail.com>

Author: itziarZG

.husky/commit-msg

@@ -0,0 +1 @@
+pnpm exec commitlint --edit "$1"

.husky/pre-commit

@@ -0,0 +1,2 @@
+pnpm astro check
+pnpm exec lint-staged

.pre-commit-config.yaml

@@ -6,13 +6,11 @@ Website for the most important Python [event](https://2026.es.pycon.org/) in Spa
 
 - Node.js v22.0.0 (see `.nvmrc`)
 - pnpm
-- [pre-commit](https://pre-commit.com/)
 
 ## Installation
 
 ```bash
 pnpm install
-pre-commit install
 ```
 
 ## Development
@@ -38,35 +36,43 @@ pnpm preview
 To maintain good SEO and consistency as the project grows, follow these guidelines when adding new pages:
 
 ### 1. Creating Multi-language Pages
+
 New pages should be created in `src/pages/[lang]/` using `getStaticPaths`.
+
 - Ensure you use the `<Layout>` component.
 - Always provide a unique `title` and `description` to the Layout.
 
 Example:
+
 ```astro
 ---
 import Layout from '../../layouts/Layout.astro'
 // ...
 ---
+
 <Layout title="Your Page Title" description="Concise description (150-160 chars)">
   <!-- Content -->
 </Layout>
 ```
 
 ### 2. SEO Best Practices
+
 - **Semantic HTML**: Use only one `<h1>` per page. Follow a logical heading hierarchy (`<h2>`, `<h3>`).
 - **Image Alt Tags**: All `<img>` tags MUST have descriptive `alt` attributes.
 - **Internal Linking**: Use descriptive link text (avoid "click here").
 
 ### 3. Analytics
+
 - Set the `PUBLIC_GA_ID` environment variable in your `.env` file to enable Google Analytics.
   ```text
   PUBLIC_GA_ID=G-XXXXXXXXXX
   ```
 
 ### 4. Structured Data
+
 - The main event structured data (JSON-LD) is globally included in `Layout.astro`.
 - For specific pages (like "Sponsors" or "Talks"), consider adding additional [schema.org](https://schema.org) types locally if necessary.
 
 ### 5. Sitemap
+
 - The sitemap is automatically generated on every build. No manual action is required.

README.md

@@ -8,7 +8,8 @@
     "dev": "astro dev",
     "build": "astro build",
     "preview": "astro preview",
-    "format": "prettier --write src"
+    "format": "prettier --write src",
+    "prepare": "husky"
   },
   "keywords": [],
   "author": "",
@@ -26,6 +27,10 @@
   },
   "devDependencies": {
     "@astrojs/check": "^0.9.6",
+    "@commitlint/cli": "^20.5.0",
+    "@commitlint/config-conventional": "^20.5.0",
+    "husky": "^9.1.7",
+    "lint-staged": "^16.4.0",
     "prettier": "^3.7.4",
     "prettier-plugin-astro": "^0.14.1",
     "typescript": "^5.9.3"
@@ -47,5 +52,13 @@
         }
       }
     ]
+  },
+  "lint-staged": {
+    "*.{ts,tsx,js,jsx,json,css,md,astro}": "prettier --check"
+  },
+  "commitlint": {
+    "extends": [
+      "@commitlint/config-conventional"
+    ]
   }
 }