refactor: convert repository from section (_index.md) to plain page (index.md)

Repository is a simple page, not a section. Renamed _index.md to index.md in both EN and IT, removed type = "repository" front matter (Hugo resolves layouts/repository/single.html automatically by section name), and renamed list.html to single.html. Visual output unchanged.

Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>

1 files changed, 62 insertions, 0 deletions

diff --git a/content/en/repository/index.md b/content/en/repository/index.md
new file mode 100644
index 0000000..de87073
--- /dev/null
+++ b/content/en/repository/index.md
@@ -0,0 +1,62 @@
++++
+title = "Slackware Repository"
+date = 2026-04-17T00:00:00Z
+draft = false
++++
+
+## Quick Start
+
+Add the repository to your Slackware system:
+
+```bash
+# Add repository configuration (example command)
+wget -O - https://danix.xyz/packages/slackware.asc | gpg --import
+echo "deb https://danix.xyz/packages/slackware/ stable main" >> /etc/apt/sources.list.d/danix.list
+apt-get update
+```
+
+## Installation
+
+### Prerequisites
+
+- Slackware 15.0 or later
+- Root or sudo access
+- wget or curl
+
+### Steps
+
+1. Download and import the repository GPG key
+2. Add the repository to your package manager configuration
+3. Update your package lists
+4. Install packages as needed
+
+### Repository URL
+
+```
+https://danix.xyz/packages/slackware/
+```
+
+## Usage
+
+### Installing a Package
+
+```bash
+apt-get install package-name
+```
+
+### Updating Packages
+
+```bash
+apt-get update
+apt-get upgrade
+```
+
+### Searching for Packages
+
+```bash
+apt-cache search keyword
+```
+
+## Available Packages
+
+Check the repository for the latest available packages. See the GitHub SlackBuild repositories below for build information and source files.