feat(home-manager): add starship prompt and reorganize CLI features

- Move zsh configuration from global/ to features/cli/
- Add starship.nix with custom prompt configuration
  - Left prompt: username@hostname, directory, git status, vi-mode indicator
  - Right prompt: language/environment indicators (C, direnv, Haskell, Bun, Python, Rust)
  - Git status with semantic colors (green=staged, yellow=modified/untracked, red=conflicted/deleted, cyan=stashed/renamed)
  - Vi-mode aware prompt character (red heart in insert, blue in normal)
- Update features/cli to import starship via zsh.nix
- Remove empty imports section from global/default.nix

home-manager/sajenim/features/cli/default.nix

@@ -7,6 +7,7 @@
     ./git.nix
     ./mpd.nix
     ./ssh.nix
+    ./zsh.nix
   ];
 
   home.packages = with pkgs;

home-manager/sajenim/features/cli/starship.nix

@@ -0,0 +1,70 @@
+{...}: {
+  programs.starship = {
+    enable = true;
+    enableZshIntegration = true;
+    settings = {
+      # Left prompt: username@hostname directory git ♥
+      format = "$username$hostname$directory$git_branch$git_status$character";
+
+      # Right prompt: language indicators
+      right_format = "$c$direnv$haskell$bun$python$rust";
+
+      # Blue username
+      username = {
+        style_user = "blue";
+        style_root = "red";
+        format = "[$user]($style)";
+        show_always = true;
+      };
+
+      # Blue @hostname
+      hostname = {
+        ssh_only = false;
+        format = "[@$hostname]($style) ";
+        style = "blue";
+      };
+
+      # Cyan directory
+      directory = {
+        style = "cyan";
+        format = "[$path]($style) ";
+        truncation_length = 0;
+        truncate_to_repo = false;
+      };
+
+      # Git branch (purple, no bold)
+      git_branch = {
+        style = "purple";
+      };
+
+      # Git status with semantic colors (no bold, no brackets)
+      git_status = {
+        format = "$conflicted$stashed$deleted$renamed$modified$staged$untracked$ahead_behind";
+        conflicted = "[=$count](red) ";
+        ahead = "[⇡$count](cyan) ";
+        behind = "[⇣$count](cyan) ";
+        diverged = "[⇡$ahead_count](cyan)[⇣$behind_count](cyan) ";
+        untracked = "[?$count](yellow) ";
+        stashed = "[\\$$count](cyan) ";
+        modified = "[!$count](yellow) ";
+        staged = "[+$count](green) ";
+        renamed = "[»$count](cyan) ";
+        deleted = "[✘$count](red) ";
+      };
+
+      # Heart prompt character (red in insert mode, blue in normal mode)
+      character = {
+        success_symbol = "[♥](red)";
+        error_symbol = "[♥](red)";
+        vicmd_symbol = "[♥](blue)";
+      };
+
+      # Language modules for right prompt (only configure non-defaults)
+
+      # Enable direnv (disabled by default)
+      direnv.disabled = false;
+
+      # C, Python, Haskell, Bun, Rust: use defaults
+    };
+  };
+}

home-manager/sajenim/features/cli/zsh.nix

@@ -0,0 +1,56 @@
+{pkgs, ...}: {
+  imports = [
+    ./starship.nix
+  ];
+
+  home.packages = with pkgs; [
+    fzf # command-line fuzzy finder
+  ];
+
+  programs.zsh = {
+    enable = true;
+
+    # Enable extra features
+    autosuggestion = {
+      enable = true;
+    };
+    syntaxHighlighting = {
+      enable = true;
+    };
+    enableCompletion = true;
+
+    # Configuration directory
+    dotDir = ".config/zsh";
+
+    shellAliases = {
+      # Single letter aliases
+      c = "clear";
+      v = "nvim";
+
+      # Double letter aliases
+      la = "ls -a";
+      ll = "ls -l";
+    };
+
+    # Install plugins
+    plugins = [
+      { # vi(vim) mode for ZSH
+        name = "zsh-vi-mode";
+        src = "${pkgs.zsh-vi-mode}/share/zsh-vi-mode";
+      }
+
+      { # replace zsh's completion with fzf
+        name = "fzf-tab";
+        src = "${pkgs.zsh-fzf-tab}/share/fzf-tab";
+      }
+    ];
+
+    # Extra commands that should be added to '.zshrc'
+    initContent = ''
+      eval "$(direnv hook zsh)"
+      bindkey "^[[1;5C" forward-word
+      bindkey "^[[1;5D" backward-word
+      export PATH
+    '';
+  };
+}