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.

tailscale/postinstall.sh

@@ -0,0 +1,26 @@
+#!/bin/bash
+
+set -euo pipefail
+
+if command -v systemctl >/dev/null 2>&1 && [[ -d /run/systemd/system ]]; then
+    systemctl daemon-reload
+    systemctl enable --now tailscaled.service
+fi
+
+REAL_USER="${SUDO_USER:-}"
+if [[ -z "$REAL_USER" ]] && [[ -n "${PKEXEC_UID:-}" ]]; then
+    REAL_USER=$(id -nu "$PKEXEC_UID")
+fi
+if [[ -z "$REAL_USER" ]] && command -v logname &>/dev/null; then
+    REAL_USER=$(logname 2>/dev/null) || REAL_USER=""
+fi
+
+if [[ -n "$REAL_USER" ]] && [[ "$REAL_USER" != "root" ]] && id "$REAL_USER" &>/dev/null && command -v tailscale &>/dev/null; then
+    for _ in 1 2 3 4 5; do
+        tailscale status --json &>/dev/null && break
+        sleep 1
+    done
+    if ! tailscale set --operator="$REAL_USER"; then
+        echo "Предупреждение: не удалось назначить Tailscale operator для $REAL_USER." >&2
+    fi
+fi