Fix Forgejo SSH user configuration

- Set explicit git user for Forgejo service
- Add SSH_USER configuration for proper SSH handling
- Ensure compatibility with system SSH server

modules/users/common.nix

@@ -1,13 +1,15 @@
 # Common User Configuration
 # Shared settings for all users in the home lab
-{ config, pkgs, ... }:
-
 {
+  config,
+  pkgs,
+  ...
+}: {
   # Common user settings
   users = {
     # Use mutable users for flexibility
     mutableUsers = true;
-    
+
     # Default shell for all users
     defaultUserShell = pkgs.zsh;
   };
@@ -17,34 +19,35 @@
     enable = true;
     autosuggestions.enable = true;
     syntaxHighlighting.enable = true;
-    
+
     # direnv integration
     interactiveShellInit = ''
+      eval "$(starship init zsh)"
       eval "$(direnv hook zsh)"
     '';
-    
+
     # Common aliases for all users
     shellAliases = {
       # Modern CLI tool replacements (basic ones moved to base.nix)
       "ll" = "eza -l --color=auto --group-directories-first";
       "la" = "eza -la --color=auto --group-directories-first";
       "tree" = "eza --tree";
-      
+
       # Git shortcuts (basic ones moved to base.nix)
-      
+
       # System shortcuts (some moved to base.nix)
       "top" = "btop";
-      
+
       # Network
       "ping" = "ping -c 5";
       "myip" = "curl -s ifconfig.me";
-      
+
       # Safety
       "rm" = "rm -i";
       "mv" = "mv -i";
       "cp" = "cp -i";
     };
-    
+
     # Common environment variables
     sessionVariables = {
       EDITOR = "emacs";
@@ -57,10 +60,10 @@
   environment.systemPackages = with pkgs; [
     # Essential CLI tools moved to base.nix
     # Adding user-specific tools here
-    
+
     # Communication
     firefox
-    
+
     # Development (basic tools moved to base.nix)
     # Additional utilities not in base.nix
   ];
@@ -69,7 +72,7 @@
   security = {
     # Require password for sudo (can be overridden per user)
     sudo.wheelNeedsPassword = true;
-    
+
     # Polkit for desktop users
     polkit.enable = true;
   };
@@ -81,12 +84,11 @@
       enable = true;
       settings = {
         PasswordAuthentication = false; # Key-based auth only
-        PermitRootLogin = "no";         # No root login
-        X11Forwarding = true;           # For GUI applications over SSH
+        PermitRootLogin = "no"; # No root login
+        X11Forwarding = true; # For GUI applications over SSH
       };
     };
-    
-    
+
     # Enable sound
     pipewire = {
       enable = true;