refactor: use ZSH_CUSTOM from .zshenv

.zshrc

@@ -79,7 +79,8 @@ source_files=(
   "$HOME/.env"
   "$HOME/.nvm/nvm.sh"
   "$HOME/.cargo/env"
-  "${XDG_CACHE_HOME:-$HOME/.cache}/p10k-instant-prompt-${(%):-%n}.zsh"
+  "$HOME/.oh-my-zsh/oh-my-zsh.sh"
+  "$HOME/.p10k.zsh"
 )
 
 # Source zsh-compatible files (skip if missing, no warnings)
@@ -94,7 +95,7 @@ done
 
 # Commands whose output should be eval'd (tool initializers, etc.)
 eval_expressions=(
-  'pyenv init -'
+  'pyenv init --path'
 )
 
 for expr in "${eval_expressions[@]}"; do
@@ -102,33 +103,6 @@ for expr in "${eval_expressions[@]}"; do
 done
 
 
-# =============================================================================
-# SHELL INITIALIZATION
-# =============================================================================
-
-# Oh My Zsh installation
-export ZSH="$HOME/.oh-my-zsh"
-
-# Set theme
-ZSH_THEME="powerlevel10k/powerlevel10k"
-
-# Enable plugins
-plugins=(
-  git gh sudo ssh ruby rust python node rsync nvm rbenv pyenv
-  docker docker-compose zsh-autosuggestions zsh-syntax-highlighting
-  zsh-interactive-cd zsh-navigation-tools
-)
-
-# Add fpath custom completions
-[[ -d "$HOME/.zsh/completions" ]] && fpath=("$HOME/.zsh/completions" $fpath)
-
-# Load Oh My Zsh framework
-[[ -f "$ZSH/oh-my-zsh.sh" ]] && source "$ZSH/oh-my-zsh.sh"
-
-# Powerlevel10k configuration (must come after theme is set)
-[[ -f ~/.p10k.zsh ]] && source ~/.p10k.zsh
-
-
 # =============================================================================
 # SHELL OPTIONS
 # =============================================================================