Refactor dotfiles - 2026-01-18

Changes:
- Refactored .zshrc into modular oh-my-zsh/custom/ files
- Created aliases.zsh, functions.zsh, path.zsh, keybindings.zsh
- Added bira-time.zsh-theme (bira with timestamp)
- Added tools/*.zsh for pyenv, nvm, kubectl
- Updated .tmux.conf.local with cross-platform support
- Updated gpakosz/.tmux framework
- Cleaned up .zshenv

dot_oh-my-zsh/custom/themes/bira-time.zsh-theme

@@ -0,0 +1,36 @@
+# bira-time theme - bira with timestamp
+# Based on bira theme, adds current time to prompt
+
+local return_code="%(?..%{$fg[red]%}%? ↵%{$reset_color%})"
+local user_host="%B%(!.%{$fg[red]%}.%{$fg[green]%})%n@%m%{$reset_color%} "
+local user_symbol='%(!.#.$)'
+local current_dir="%B%{$fg[blue]%}%~ %{$reset_color%}"
+local current_time="%{$fg_bold[red]%}%*%{$reset_color%} "
+
+local vcs_branch='$(git_prompt_info)$(hg_prompt_info)'
+local rvm_ruby='$(ruby_prompt_info)'
+local venv_prompt='$(virtualenv_prompt_info)'
+
+ZSH_THEME_RVM_PROMPT_OPTIONS="i v g"
+
+PROMPT="╭─${user_host}${current_time}${current_dir}${rvm_ruby}${vcs_branch}${venv_prompt}
+╰─%B${user_symbol}%b "
+RPROMPT="%B${return_code}%b"
+
+ZSH_THEME_GIT_PROMPT_PREFIX="%{$fg[yellow]%}‹"
+ZSH_THEME_GIT_PROMPT_SUFFIX="› %{$reset_color%}"
+ZSH_THEME_GIT_PROMPT_DIRTY="%{$fg[red]%}●%{$fg[yellow]%}"
+ZSH_THEME_GIT_PROMPT_CLEAN="%{$fg[yellow]%}"
+
+ZSH_THEME_HG_PROMPT_PREFIX="$ZSH_THEME_GIT_PROMPT_PREFIX"
+ZSH_THEME_HG_PROMPT_SUFFIX="$ZSH_THEME_GIT_PROMPT_SUFFIX"
+ZSH_THEME_HG_PROMPT_DIRTY="$ZSH_THEME_GIT_PROMPT_DIRTY"
+ZSH_THEME_HG_PROMPT_CLEAN="$ZSH_THEME_GIT_PROMPT_CLEAN"
+
+ZSH_THEME_RUBY_PROMPT_PREFIX="%{$fg[red]%}‹"
+ZSH_THEME_RUBY_PROMPT_SUFFIX="› %{$reset_color%}"
+
+ZSH_THEME_VIRTUAL_ENV_PROMPT_PREFIX="%{$fg[green]%}‹"
+ZSH_THEME_VIRTUAL_ENV_PROMPT_SUFFIX="› %{$reset_color%}"
+ZSH_THEME_VIRTUALENV_PREFIX="$ZSH_THEME_VIRTUAL_ENV_PROMPT_PREFIX"
+ZSH_THEME_VIRTUALENV_SUFFIX="$ZSH_THEME_VIRTUAL_ENV_PROMPT_SUFFIX"