feat: create autonomous Nivora package repository

Maintain a validated cross-distribution package catalog.
Automate upstream updates, isolated builds, diagnostics, and direct publication.
Build the official GitHub Desktop sources for Linux with working OAuth.

anidesk/.stapler/update-check

@@ -0,0 +1,6 @@
+#!/bin/bash
+set -euo pipefail
+
+package_dir="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
+repo_root="$(cd "${package_dir}/.." && pwd)"
+exec "${repo_root}/tools/package_updates.sh" check "$(basename "$package_dir")"

anidesk/.stapler/update-run

@@ -0,0 +1,13 @@
+#!/bin/bash
+
+set -euo pipefail
+
+new_version="${1:?new version is required}"
+package_dir="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
+staplerfile="${package_dir}/Staplerfile"
+debian_version="${new_version/-beta./.beta.}"
+
+stplr-spec set-field --path "$staplerfile" version "$new_version"
+stplr-spec set-field --path "$staplerfile" release 1
+stplr-spec set-field --path "$staplerfile" debian_version "$debian_version"
+stplr-spec update-checksums --path "$staplerfile"