refactor(shell): reorganize shell config for proper separation

Restructure shell configuration to follow standard conventions:
- .profile: Environment variables only (POSIX compatible)
- .bash_profile: NEW - sources .profile and .bashrc for login shells
- .bashrc: Bash-specific settings, sources .bashrc.d/
- .zshrc: Zsh-specific settings, sources .zshrc.d/

New modular directories:
- .bashrc.d/: aliases, emacs, fzf, git, media, utilities
- .zshrc.d/: same as bashrc.d plus arch-downgrade (zsh-only)
- .profile.d/: reduced to env-only files (display, framework, auto-tmux)

Fixes:
- Remove duplicate .profile sourcing in .bashrc
- Remove broken XDG_CURRENT_DESKTOP=GNOME line from display.sh
- Move aliases/functions from .profile to appropriate .d/ directories
- Shell-specific init (zoxide, fzf) now in .bashrc/.zshrc directly
- FreeBSD bindkey fix now in .zshrc directly

Also adds CLAUDE.md session context file.

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

1 files changed, 58 insertions, 41 deletions

diff --git a/dotfiles/system/.bashrc b/dotfiles/system/.bashrc
index b5290cd..b2177d9 100644
--- a/dotfiles/system/.bashrc
+++ b/dotfiles/system/.bashrc
@@ -1,59 +1,76 @@
 #!/bin/bash
-# cjennings .bashrc
-
-# tells shellcheck not to follow references to other files
-# shellcheck source=/dev/null
+# .bashrc
+# Craig Jennings <c@cjennings.net>
+#
+# Bash-specific interactive shell settings.
+# Aliases, functions, prompt, completions, shell options.
 
 # If not running interactively, don't do anything
 case $- in
-	*i*) ;;
-	  *) return;;
+    *i*) ;;
+      *) return;;
 esac
 
-# env variables, aliases, and functions that are not bash specific
-source "$HOME"/.profile
-
-# don't put duplicate lines or lines starting with space in the history.
-HISTCONTROL=ignoreboth
-
-# infinite history
-HISTSIZE=HISTFILESIZE=
-
-# append and reload the history after each command
-PROMPT_COMMAND="history -a; history -n"
+# =============================================================================
+# Environment Variables (from .profile)
+# =============================================================================
+# Source .profile for env vars (needed for non-login interactive shells)
+[ -f "$HOME/.profile" ] && . "$HOME/.profile"
 
-# ignore the following commands from the history
-HISTIGNORE="ls:ll:cd:pwd:bg:fg:history"
+# =============================================================================
+# Shell Options
+# =============================================================================
+shopt -s histappend      # append to history file, don't overwrite
+shopt -s checkwinsize    # update LINES and COLUMNS after each command
+shopt -s autocd          # cd to directory by typing its name
+shopt -s cdspell         # correct minor spelling errors in cd
+shopt -s dirspell        # correct spelling errors during tab-completion
 
-# for setting history length see HISTSIZE and HISTFILESIZE in bash(1)
+# =============================================================================
+# History
+# =============================================================================
+HISTCONTROL=ignoreboth   # ignore duplicates and lines starting with space
 HISTSIZE=100000
 HISTFILESIZE=10000000
+HISTIGNORE="ls:ll:cd:pwd:bg:fg:history:exit"
+PROMPT_COMMAND="history -a; history -n"  # append and reload after each command
 
-# append to the history file, don't overwrite it
-shopt -s histappend
+# =============================================================================
+# Prompt
+# =============================================================================
+PS1='[\d, \t] \u@\H:\w \n$ '
 
-# cd to directory by typing its name
-shopt -s autocd
-
-# check window size after each command + update LINES and COLUMNS values.
-shopt -s checkwinsize
-
-# enable programmable completion features
+# =============================================================================
+# Completions
+# =============================================================================
 if ! shopt -oq posix; then
-  if [ -f /usr/share/bash-completion/bash_completion ]; then
-	. /usr/share/bash-completion/bash_completion
-  elif [ -f /etc/bash_completion ]; then
-	. /etc/bash_completion
-  fi
+    if [ -f /usr/share/bash-completion/bash_completion ]; then
+        . /usr/share/bash-completion/bash_completion
+    elif [ -f /etc/bash_completion ]; then
+        . /etc/bash_completion
+    fi
 fi
-if [ -f /etc/bash_completion ]; then
- . /etc/bash_completion
+
+# =============================================================================
+# Source modular bash configs from .bashrc.d/
+# =============================================================================
+if [ -d "$HOME/.bashrc.d" ]; then
+    for file in "$HOME/.bashrc.d"/*.sh; do
+        [ -r "$file" ] && . "$file"
+    done
+    unset file
 fi
 
-export PS1="[\d, \t] \u@\H:\w \n$ "
+# =============================================================================
+# Tool-specific initialization
+# =============================================================================
+# FZF
+[ -f "$HOME/.fzf.bash" ] && . "$HOME/.fzf.bash"
 
-source "$HOME"/.profile
+# Deno
+[ -f "$HOME/.deno/env" ] && . "$HOME/.deno/env"
+[ -f "$HOME/.local/share/bash-completion/completions/deno.bash" ] && \
+    . "$HOME/.local/share/bash-completion/completions/deno.bash"
 
-[ -f "$HOME"/.fzf.bash ] && source "$HOME"/.fzf.bash
-. "/home/cjennings/.deno/env"
-source /home/cjennings/.local/share/bash-completion/completions/deno.bash
\ No newline at end of file
+# Zoxide (smart cd)
+command -v zoxide >/dev/null 2>&1 && eval "$(zoxide init bash)"