chore: import upstream snapshot with attribution

reasonix-skill/scripts/install.ps1

@@ -0,0 +1,24 @@
+$ErrorActionPreference = "Stop"
+
+$scriptDir = Split-Path -Parent $MyInvocation.MyCommand.Path
+$skillDir = Split-Path -Parent $scriptDir
+
+$reasonixHome = if ($env:USERPROFILE) {
+    Join-Path $env:USERPROFILE ".reasonix"
+} else {
+    throw "USERPROFILE is unavailable."
+}
+
+$destRoot = Join-Path $reasonixHome "skills"
+$destDir = Join-Path $destRoot "cli-anything"
+
+New-Item -ItemType Directory -Path $destRoot -Force | Out-Null
+
+if (Test-Path $destDir) {
+    Write-Error "Refusing to overwrite existing skill: $destDir`nRemove it manually if you want to reinstall."
+}
+
+Copy-Item -Path $skillDir -Destination $destDir -Recurse
+
+Write-Host "Installed Reasonix skill to: $destDir"
+Write-Host "Restart Reasonix to pick up the new skill."

reasonix-skill/scripts/install.sh

@@ -0,0 +1,22 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+SKILL_DIR="$(cd "${SCRIPT_DIR}/.." && pwd)"
+: "${HOME:?HOME must be set to install a global Reasonix skill}"
+DEST_ROOT="${HOME}/.reasonix/skills"
+DEST_DIR="${DEST_ROOT}/cli-anything"
+
+mkdir -p "${DEST_ROOT}"
+
+if [[ -e "${DEST_DIR}" ]]; then
+  echo "Refusing to overwrite existing skill: ${DEST_DIR}" >&2
+  echo "Remove it manually if you want to reinstall." >&2
+  exit 1
+fi
+
+cp -R "${SKILL_DIR}" "${DEST_DIR}"
+
+echo "Installed Reasonix skill to: ${DEST_DIR}"
+echo "Restart Reasonix to pick up the new skill."