feat: setup release automation

- Removed incorrect npm publish workflow
- Added GitHub Release workflow for building and zipping assets
- Added PUBLISHING.md documentation

Author: Syntax-Error-1337

.github/workflows/npm-publish-github-packages.yml

@@ -0,0 +1,38 @@
+name: Release App
+
+on:
+  push:
+    tags:
+      - 'v*' # Push events to matching v*, i.e. v1.0, v20.15.10
+
+permissions:
+  contents: write
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: '20'
+          cache: 'npm'
+
+      - name: Install Dependencies
+        run: npm ci
+
+      - name: Build Application
+        run: npm run build
+
+      - name: Archive Production Artifact
+        run: |
+          zip -r open-temp-mail-${{ github.ref_name }}.zip dist
+
+      - name: Create Release
+        uses: softprops/action-gh-release@v1
+        with:
+          files: open-temp-mail-${{ github.ref_name }}.zip
+          generate_release_notes: true

.github/workflows/release.yml

@@ -0,0 +1,27 @@
+# Publishing a New Release
+
+This project uses **GitHub Actions** to automatically build and release the application.
+
+## How to Create a Release
+
+1.  **Update Version**: Bump the version in `package.json` (e.g., `1.0.0` -> `1.0.1`).
+2.  **Commit**: Commit the change.
+    ```bash
+    git commit -am "chore: bump version to 1.0.1"
+    ```
+3.  **Tag**: Create a new tag starting with `v`.
+    ```bash
+    git tag v1.0.1
+    ```
+4.  **Push**: Push the commit and the tag to GitHub.
+    ```bash
+    git push && git push --tags
+    ```
+
+## What Happens Next?
+
+-   GitHub Actions will detect the new tag.
+-   It will build the project (`npm run build`).
+-   It will zip the `dist/` folder.
+-   It will create a new **Release** in the GitHub repository.
+-   The zipped assets will be attached to the release for download.