docs: update README with mise, update-system, and structure; remove legacy nvm from install.sh

README.md

@@ -13,7 +13,7 @@ Meine persönliche Development-Umgebung optimiert für:
 
 ### Core Tools
 - **Neovim** - Scratch config mit lazy.nvim (TypeScript/Go optimiert)
-- **Fish Shell** - Mit Fisher, NVM, FZF Integration
+- **Fish Shell** - Mit Fisher, Mise, FZF Integration
 - **Ghostty** - Modernes Terminal mit Tokyo Night Theme
 - **Starship** - Cross-shell prompt
 
@@ -68,6 +68,7 @@ ln -sf ~/gits/dotfiles/.config/nvim ~/.config/nvim
 ln -sf ~/gits/dotfiles/.config/ghostty ~/.config/ghostty
 ln -sf ~/gits/dotfiles/.config/starship.toml ~/.config/starship.toml
 ln -sf ~/gits/dotfiles/.config/fastfetch ~/.config/fastfetch
+ln -sf ~/gits/dotfiles/.config/mise ~/.config/mise
 ln -sf ~/gits/dotfiles/.config/yabai ~/.config/yabai
 ln -sf ~/gits/dotfiles/.config/hypr ~/.config/hypr
 
@@ -105,6 +106,8 @@ dotfiles/
 │   ├── btop/              # System monitor config (primary)
 │   ├── htop/              # System monitor fallback
 │   ├── fastfetch/         # System info config (with custom Bug Hunter Whale ASCII art)
+│   ├── mise/              # Runtime version manager (Node, etc.)
+│   ├── tmux/              # Terminal multiplexer config
 │   ├── yabai/             # Window manager (macOS)
 │   ├── hypr/              # Window manager (Linux/Wayland)
 │   └── starship.toml      # Prompt config
@@ -150,6 +153,9 @@ dotfiles/
 ## 🔄 Updates
 
 ```bash
+# Komplettes System & Tools aktualisieren (macOS / Linux OS-Updates + Homebrew/Pakete)
+update-system
+
 # Dotfiles updaten
 cd ~/gits/dotfiles
 git pull
@@ -215,7 +221,7 @@ nvim
 - **OS**: macOS 12+, Linux (Arch, Debian, Fedora)
 - **Neovim**: 0.10+
 - **Git**: 2.30+
-- **Fish**: 3.5+
+- **Fish**: 4.0+
 
 ### Recommended
 - **Neovim**: 0.11+ (für moderne LSP APIs)

install.sh

@@ -340,7 +340,6 @@ setup_fish() {
     
     # Install Fish plugins
     log "Installing Fish plugins..."
-    fish -c "fisher install jorgebucaran/nvm.fish" || true
     fish -c "fisher install PatrickF1/fzf.fish" || true
     fish -c "fisher install franciscolourenco/done" || true