.gitconfig: Reorder includeif overrides

Add allowed signers

.gitconfig: Add ~/dev/private override

Tools: Document Claude Desktop, Glean

Update latest README instructions

VS Code: Refactor settings

Year cleanup

Brew: Install openjdk@21 since self-service option is gone

VS Code: Another day, another setting to disable default Copilot

SSH: Fix gitlab.com

Migrate asdf to mise; macOS cleanup

macOS 26: Remove dark background around screenshots

iterm theme: Change white to solarized light theme (better for demos)

ZSH: Refactor minimal terminal for Agentic AI command runs

Fix comment