"me-web?" 0.13.0: updates on Linux arrive through your package manager

- Installing the deb or the rpm now also adds the Arasaka package repository, packages.arasaka.software, so later
  versions of “me-web?” arrive through apt, dnf, zypper or your software centre, like any other program.
- The rpm is now signed. On openSUSE, import the key once with
  sudo rpm --import https://packages.arasaka.software/arasaka.asc
- Removing the package keeps the repository until no Arasaka package is left (purge on Debian and Ubuntu); a
  repository file you edited by hand is never touched.
- The download and privacy pages say so; the repository server keeps no access log.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_012CzABvBkbcFqoHdmi8b9WB

tools/sdk.sh

@@ -8,9 +8,10 @@ done
 if [ -z "$dotnet_dir" ]; then
   dotnet_dir="$HOME/.dotnet"
   echo ".NET SDK $sdk not found: installing it into $dotnet_dir"
-  script="${TMPDIR:-/tmp}/dotnet-install.sh"
+  script=$(mktemp "${TMPDIR:-/tmp}/dotnet-install.XXXXXX")
   curl -fsSL https://dot.net/v1/dotnet-install.sh -o "$script"
   bash "$script" --version "$sdk" --install-dir "$dotnet_dir"
+  rm -f "$script"
 fi
 export DOTNET_ROOT="$dotnet_dir" PATH="$dotnet_dir:$PATH" DOTNET_CLI_TELEMETRY_OPTOUT=1 DOTNET_NOLOGO=1
 cd "$root"