Initial setup: mac_os installer with custom config

Contains both components needed for Mac setup:
- mac_os/: Installer scripts (from bkuhlmann/mac_os)
- mac_os-config/: Custom app configuration

Configured apps:
- Homebrew formulas: atuin, bash, ffmpeg, mas, mole, node, rename, ykman
- Homebrew casks: chromium, deepl, element, nextcloud, nova, proton suite, signal, transmit
- App Store: Affinity suite, Bitwarden, Final Cut Pro, Invoice Ninja, iWork, PastePal, xSearch

Usage: cd mac_os && ./bin/run

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

mac_os-config/CITATION.cff

@@ -0,0 +1,22 @@
+cff-version: 1.2.0
+message: Please use the following metadata when citing this project in your work.
+title: macOS Configuration
+abstract: Shell scripts for customized macOS machine setup.
+version: 30.0.0
+license: Hippocratic-2.1
+date-released: 2026-01-01
+authors:
+  - family-names: Kuhlmann
+    given-names: Brooke
+    affiliation: Alchemists
+    orcid: https://orcid.org/0000-0002-5810-6268
+keywords:
+ - bash
+ - shell
+ - scripts
+ - automation
+ - setup
+ - recovery
+repository-code: https://github.com/bkuhlmann/mac_os-config
+repository-artifact: https://alchemists.io/projects/mac_os-config
+url: https://alchemists.io/projects/mac_os-config