feat: implement proper Debian Package Registry setup

Replace Generic Package Registry with proper Debian Package Registry using
correct API endpoint and authentication. Update workflow to use POST method
with form data and proper Bearer token authentication. Update README with
professional apt repository setup including GPG key verification and proper
installation instructions following Forgejo documentation.

.forgejo/workflows/build-libostree-backport.yml

@@ -138,27 +138,21 @@ jobs:
           apt-get update -y
           apt-get install -y curl
 
-      - name: Upload to Generic Package Registry
+      - name: Upload to Debian Package Registry
         run: |
-          # Upload each .deb package to Forgejo's Generic Package Registry
+          # Upload each .deb package to Forgejo's Debian Package Registry
           for deb_file in release-assets/*.deb; do
             if [ -f "$deb_file" ]; then
-              echo "Uploading $deb_file to Generic Package Registry..."
+              echo "Uploading $deb_file to Debian Package Registry..."
               
-              # Extract filename for the package
-              filename=$(basename "$deb_file")
-              package_name=$(echo "$filename" | cut -d'_' -f1)
-              version=$(echo "$filename" | cut -d'_' -f2 | cut -d'~' -f1)
-              
-              echo "Package: $package_name"
-              echo "Version: $version"
-              echo "File: $filename"
-              
-              # Upload to Forgejo's Generic Package Registry
-              # PUT https://forgejo.example.com/api/packages/{owner}/generic/{package_name}/{package_version}/{file_name}
-              curl --user "robojerk:${{ secrets.ACCESS_TOKEN }}" \
-                   --upload-file "$deb_file" \
-                   "https://git.raines.xyz/api/packages/robojerk/generic/$package_name/$version/$filename"
+              # Upload to Forgejo's Debian Package Registry using the correct API
+              # POST /api/v1/repos/{owner}/{repo}/packages/debian
+              curl -X POST \
+                   -H "Authorization: Bearer ${{ secrets.ACCESS_TOKEN }}" \
+                   -F "file=@$deb_file" \
+                   -F "distribution=noble" \
+                   -F "component=main" \
+                   "https://git.raines.xyz/api/v1/repos/robojerk/libostree-dev/packages/debian"
               
               echo "Upload completed for $deb_file"
             fi

README.md

@@ -33,17 +33,25 @@ This repository contains the CI/CD workflow and scripts to build a backport of l
 
 **How to Download**:
 
-### Option 1: Generic Package Registry (Recommended)
-Packages are available in Forgejo's Generic Package Registry:
+### Option 1: Debian Package Registry (Recommended)
+Packages are available in Forgejo's Debian Package Registry:
 
+```bash
+# Add the repository
+echo "deb [signed-by=/etc/apt/keyrings/forgejo.gpg] https://git.raines.xyz/api/packages/robojerk/debian/ noble main" | sudo tee /etc/apt/sources.list.d/libostree-dev.list
+
+# Add the GPG key
+sudo mkdir -p /etc/apt/keyrings/
+curl -fsSL https://git.raines.xyz/api/packages/robojerk/debian/Release.key | sudo gpg --dearmor -o /etc/apt/keyrings/forgejo.gpg
+
+# Update and install
+sudo apt update
+sudo apt install libostree-dev=2025.2-1~noble1
+```
+
+### Option 2: Direct Download from Package Registry
 Visit: https://git.raines.xyz/robojerk/libostree-dev/packages
 
-### Option 2: Direct Download Links
-Download individual packages directly:
-- `libostree-dev_2025.2-1~noble1_amd64.deb` (105KB) - Main development package
-- `libostree-1-1_2025.2-1~noble1_amd64.deb` (355KB) - Runtime library
-- `ostree_2025.2-1~noble1_amd64.deb` (190KB) - Command line tools
-
 ### Available Packages:
 - `libostree-dev_2025.2-1~noble1_amd64.deb` (105KB) - Main development package
 - `libostree-1-1_2025.2-1~noble1_amd64.deb` (355KB) - Runtime library
@@ -65,18 +73,20 @@ Download individual packages directly:
 ### Installation
 
 ```bash
-# Option 1: Download and install from Generic Package Registry
+# Option 1: Install via Debian Package Registry (Recommended)
+echo "deb [signed-by=/etc/apt/keyrings/forgejo.gpg] https://git.raines.xyz/api/packages/robojerk/debian/ noble main" | sudo tee /etc/apt/sources.list.d/libostree-dev.list
+sudo mkdir -p /etc/apt/keyrings/
+curl -fsSL https://git.raines.xyz/api/packages/robojerk/debian/Release.key | sudo gpg --dearmor -o /etc/apt/keyrings/forgejo.gpg
+sudo apt update
+sudo apt install libostree-dev=2025.2-1~noble1
+
+# Option 2: Manual download and install
 # 1. Visit: https://git.raines.xyz/robojerk/libostree-dev/packages
 # 2. Download libostree-dev_2025.2-1~noble1_amd64.deb
 # 3. Install:
 sudo dpkg -i libostree-dev_2025.2-1~noble1_amd64.deb
 sudo apt-get install -f  # Install any missing dependencies
 
-# Option 2: Direct download and install
-wget https://git.raines.xyz/api/packages/robojerk/generic/libostree-dev/2025.2/libostree-dev_2025.2-1~noble1_amd64.deb
-sudo dpkg -i libostree-dev_2025.2-1~noble1_amd64.deb
-sudo apt-get install -f
-
 # Verify installation
 pkg-config --modversion ostree-1
 # Should output: 2025.2