Refactor terminal.py to enhance plugin management and system compatibility

- Moved various functions related to plugin validation and quarantine to the zdtt.plugins module for better organization and reusability.
- Updated the handling of protected commands to source from the plugins module.
- Refactored status bar management functions to utilize the zdtt.status_bar module, improving code clarity and separation of concerns.
- Simplified the display banner and compatibility warning functions by delegating to the zdtt.ui module.
- Enhanced the command execution process by integrating shell command execution from the zdtt.shell module.

zdtt/ui.py

@@ -0,0 +1,85 @@
+"""
+UI helpers for ZDTT: banner, compatibility warning, and prompt.
+"""
+import os
+import shutil
+
+
+def display_banner(terminal):
+    print()
+    try:
+        term_size = shutil.get_terminal_size()
+        min_height = 13 if not terminal.is_supported else 11
+        min_width = 44
+        if term_size.columns < min_width or term_size.lines < min_height:
+            print(f"ZDTT Terminal v{terminal.version}")
+            if not terminal.is_supported:
+                _show_compatibility_warning(terminal)
+            print()
+            return
+    except Exception:
+        pass
+
+    if os.path.exists(terminal.banner_file):
+        try:
+            with open(terminal.banner_file, 'r') as f:
+                custom_banner = f.read()
+                if '{version}' in custom_banner:
+                    custom_banner = custom_banner.replace('{version}', terminal.version)
+                print(custom_banner)
+                if not terminal.is_supported:
+                    _show_compatibility_warning(terminal)
+                return
+        except Exception as e:
+            import logging
+            logging.error(f"Failed to load custom banner: {e}")
+
+    banner = f"""
+░█████████ ░███████   ░██████████░██████████
+      ░██  ░██   ░██      ░██        ░██    
+     ░██   ░██    ░██     ░██        ░██    
+   ░███    ░██    ░██     ░██        ░██    
+  ░██      ░██    ░██     ░██        ░██    
+ ░██       ░██   ░██      ░██        ░██    
+░█████████ ░███████       ░██        ░██    
+                                            
+                                            
+ZDTT Terminal v{terminal.version}
+"""
+    print(banner)
+    if not terminal.is_supported:
+        _show_compatibility_warning(terminal)
+
+
+def _show_compatibility_warning(terminal):
+    if terminal.is_supported:
+        return
+    print()
+    print("⚠️  Running on unsupported system - limited support")
+    print("    Tested on Debian-based and Arch Linux distributions.")
+    print()
+
+
+def get_prompt(terminal):
+    cwd = os.getcwd()
+    home = os.path.expanduser("~")
+    if cwd.startswith(home):
+        display_path = "~" + cwd[len(home):]
+    else:
+        display_path = cwd
+
+    RL_PROMPT_START = '\001'
+    RL_PROMPT_END = '\002'
+    prompt = (f"{RL_PROMPT_START}{terminal.COLOR_BRIGHT_CYAN}{RL_PROMPT_END}┌─{RL_PROMPT_START}{terminal.COLOR_RESET}{RL_PROMPT_END}"
+              f"[{RL_PROMPT_START}{terminal.COLOR_BRIGHT_GREEN}{RL_PROMPT_END}{terminal.username}"
+              f"{RL_PROMPT_START}{terminal.COLOR_RESET}{RL_PROMPT_END}"
+              f"{RL_PROMPT_START}{terminal.COLOR_BRIGHT_WHITE}{RL_PROMPT_END}@{RL_PROMPT_START}{terminal.COLOR_RESET}{RL_PROMPT_END}"
+              f"{RL_PROMPT_START}{terminal.COLOR_BRIGHT_CYAN}{RL_PROMPT_END}ZDTT{RL_PROMPT_START}{terminal.COLOR_RESET}{RL_PROMPT_END} "
+              f"{RL_PROMPT_START}{terminal.COLOR_BRIGHT_BLUE}{RL_PROMPT_END}{display_path}"
+              f"{RL_PROMPT_START}{terminal.COLOR_RESET}{RL_PROMPT_END}]"
+              f"{RL_PROMPT_START}{terminal.COLOR_BRIGHT_CYAN}{RL_PROMPT_END}─{RL_PROMPT_START}{terminal.COLOR_RESET}{RL_PROMPT_END}\n"
+              f"{RL_PROMPT_START}{terminal.COLOR_BRIGHT_CYAN}{RL_PROMPT_END}└─{RL_PROMPT_START}{terminal.COLOR_BRIGHT_MAGENTA}{RL_PROMPT_END}➜{RL_PROMPT_START}{terminal.COLOR_RESET}{RL_PROMPT_END} ")
+    return prompt
+
+
+