Add Network Toolkit plugin

[brightestautumn]

Plugin

• Id: autumn/network-toolkit

• New plugin
• Update to an existing plugin (version bumped in plugin.toml)

What it does

A unified control panel and bar widget to manage Wi-Fi, Ethernet, Hotspot, Bluetooth, and DNS in one place.
What it includes:

• Live Wi-Fi scanning, password connect dialogs, saved network handling, and network details.
• Concurrent Wi-Fi station + AP hotspot creation via scripts/hotspot_helper.sh (creates <interface>-ap using iw so you can host a hotspot while staying connected to your Wi-Fi network).
• Native BlueZ D-Bus agent via scripts/bluetooth_helper (handles PIN/passkey pairing requests directly on the D-Bus system bus for reliable desktop pairing popups).
• Persistent DNS switcher (Cloudflare, Google, Quad9, AdGuard, custom) that stays on through network switches and reboots.
• QR code generation to share Wi-Fi and Hotspot connections.
• Bar widget with configurable display modes and a quick-toggle shortcut.

External dependencies

• networkmanager (nmcli) — Wi-Fi scanning, connection handling, hotspot setup, and DNS configuration.
• bluez / bluez-utils (bluetoothctl) — Bluetooth adapter power, device pairing, trust, and discovery.
• iproute2 (ip) — Interface addressing and neighbor client detection.
• iw — Virtual AP interface creation and wireless client enumeration.
• qrencode — Generates QR codes for Wi-Fi and Hotspot sharing.

Testing

• Tested on Niri
• Tested on Hyprland
• Tested on Sway
• Tested on another compositor:
• Noctalia version tested against: 5.0.0 beta.9
• Plugin API level: 10

Screenshots / Videos

Checklist

Ready-for-review requirement: Every box in this section must be checked. If any statement is not true, keep the
pull request as Draft. An explanation does not replace a required check.

• The directory name matches the part of id after the / in plugin.toml exactly.
• It ships plugin.toml, README.md, thumbnail.webp, and translations/en.json.
• README.md follows the
  README template, documents
  every entry id and dependency, and includes exact panel IPC commands and launcher prefixes where applicable.
• I created thumbnail.webp with the thumbnail generator.
• version follows semver and is bumped in this PR; plugin_api is the oldest API level this plugin requires.
• Every non-English translation in this PR uses a locale supported by Noctalia core, and I can read, write, and
  understand that language well enough to review and maintain it (no unreviewed machine/LLM translations).
• I did not edit catalog.toml; CI generates it.
• This PR touches exactly one plugin directory.

Code review attestation

Plugins run as trusted, unsandboxed Luau in the user's session. Confirm:
Ready-for-review requirement: Every attestation below must be checked.

• The code is readable and not obfuscated, minified, or generated.
• It does not download and execute remote code.
• Every network call, filesystem write, and spawned process is something the description above accounts for.
• I have the right to publish this code under the license declared in plugin.toml.