Initial dotfiles commit

Laptop config: zsh, emacs (with WSL detection for work), ghostty, tmux, ranger,
newsboat, neomutt + mbsync + msmtp (Outlook OAuth2), neomutt signature.
Work config: emacs with C#/TS/JS/CSS/HTML dev settings for WSL.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

laptop/.config/msmtp/config

@@ -0,0 +1,14 @@
+defaults
+auth	xoauth2
+tls	on
+tls_trust_file	/etc/ssl/certs/ca-bundle.crt
+logfile		~/.local/share/msmtp/msmtp.log
+
+account		outlook
+host		smtp.office365.com
+port		587
+tls_starttls	on
+user		robharbaugh@outlook.com
+passwordeval	python3 /usr/share/neomutt/oauth2/mutt_oauth2.py ~/.config/neomutt/outlook.tokens --decryption-pipe 'gpg --decrypt'
+
+account default : outlook