Consolidate CLI tools and fix git aliases

- Consolidated 25+ common CLI tools into modules/common/base.nix
- Added modern rust-based tools (eza, bat, ripgrep, etc.) system-wide
- Removed duplicated packages from user and machine configs
- Added consistent shell aliases for modern CLI tools
- Fixed gpa alias to properly push to all remotes
- Removed duplicate git-push-all alias from geir.nix
- Added comprehensive documentation in CLI_TOOLS_CONSOLIDATION.md

Benefits:
- Single source of truth for common CLI tools
- Reduced duplication across 7+ configuration files
- Improved git workflow with flexible multi-remote pushing
- Better maintainability and consistency

modules/common/base.nix

@@ -1,29 +1,72 @@
 { config, pkgs, ... }:
 {
+  # Base system packages and aliases shared across all machines
+  # This module consolidates common CLI tools to reduce duplication
+  # across user configurations and machine-specific configs
+  
   environment.systemPackages = with pkgs; [
-    tldr
-    eza
-    bat
-    ripgrep
-    du-dust
-    bottom
-    fd
-    fzf
-    zoxide
-    uutils-coreutils-noprefix
-    direnv       # Directory-based environment management
-    nix-direnv   # Nix integration for direnv
+    # Modern CLI tools (rust-based replacements) 
+    tldr          # Better man pages
+    eza           # Better ls
+    bat           # Better cat  
+    ripgrep       # Better grep
+    du-dust       # Better du
+    bottom        # Better top
+    fd            # Better find
+    fzf           # Fuzzy finder
+    zoxide        # Better cd
+    uutils-coreutils-noprefix  # Modern coreutils
+    
+    # Environment management
+    direnv        # Directory-based environment management
+    nix-direnv    # Nix integration for direnv
+    
+    # Essential system tools
+    curl          # HTTP client
+    wget          # Download utility
+    git           # Version control
+    htop          # Process viewer
+    tree          # Directory tree viewer
+    file          # File type detection
+    unzip         # Archive extraction
+    zip           # Archive creation
+    fastfetch
+    zellij
+    glances
+    systemctl-tui
+
+    # Text processing and utilities
+    jq            # JSON processor
+    yq            # YAML processor
+    
+    # Network utilities
+    nmap          # Network mapper
+    
+    # System monitoring and diagnostics
+    lsof          # List open files
+    strace        # System call tracer
+    ncdu          # Disk usage analyzer
+    
+    # Development basics
+    github-cli    # GitHub CLI
   ];
   environment.shellAliases = {
     vi = "nvim";
     vim = "nvim";
     h = "tldr";
-    # oxidized
+    # Modern CLI tool replacements
     ls = "eza -l";
     cat = "bat";
     grep = "rg";
     top = "btm";
     du = "dust";
     find = "fd";
+    # Common git shortcuts (basic ones)
+    gs = "git status";
+    ga = "git add";
+    gc = "git commit";
+    gp = "git push";
+    gpa = "git remote | xargs -L1 git push";
+    gl = "git log --oneline -10";
   };
 }