feat: switch to Generic Package Registry for reliable uploads

Replace Debian Package Registry with Generic Package Registry for better
reliability and compatibility. Update workflow to use simpler API format
and organize packages by name/version. Update README with new download
instructions and direct package links.

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

@@ -138,21 +138,27 @@ jobs:
           apt-get update -y
           apt-get install -y curl
 
-      - name: Upload to Debian Package Registry
+      - name: Upload to Generic Package Registry
         run: |
-          # Upload each .deb package to Forgejo's Debian Package Registry
+          # Upload each .deb package to Forgejo's Generic Package Registry
           for deb_file in release-assets/*.deb; do
             if [ -f "$deb_file" ]; then
-              echo "Uploading $deb_file to Debian Package Registry..."
+              echo "Uploading $deb_file to Generic Package Registry..."
               
-              # Upload to Forgejo's Debian Package Registry using correct API
-              # PUT https://forgejo.example.com/api/packages/{owner}/debian/pool/{distribution}/{component}/upload
-              # Using Authorization: token header as per Forgejo documentation
-              curl -X PUT \
-                   -H "Authorization: token ${{ secrets.ACCESS_TOKEN }}" \
-                   -H "Content-Type: application/vnd.debian.binary-package" \
+              # Extract filename for the package
+              filename=$(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 "$deb_file" \
-                   "https://git.raines.xyz/api/packages/robojerk/debian/pool/noble/main/upload"
+                   "https://git.raines.xyz/api/packages/robojerk/generic/$package_name/$version/$filename"
               
               echo "Upload completed for $deb_file"
             fi