Fix some error

FIX:
    llm_provider.py 102: _model -> model
MOD:
    utility.py 25: add windows termial color print
    text_to_speech.py 29: add windows version
ADD:
    add termcolor in requirements.txt

sources/utility.py

@@ -1,20 +1,37 @@
 
 from colorama import Fore
+from termcolor import colored
+import platform
+
 
 def pretty_print(text, color = "info"):
     """
     print text with color
     """
-    color_map = {
-        "success": Fore.GREEN,
-        "failure": Fore.RED,
-        "status": Fore.LIGHTGREEN_EX,
-        "code": Fore.LIGHTBLUE_EX,
-        "warning": Fore.YELLOW,
-        "output": Fore.LIGHTCYAN_EX,
-    }
-    if color not in color_map:
-        print(text)
-        pretty_print("Invalid color in pretty_print", "warning")
-        return
-    print(color_map[color], text, Fore.RESET)
+    if platform.system().lower() != "windows":
+        color_map = {
+            "success": Fore.GREEN,
+            "failure": Fore.RED,
+            "status": Fore.LIGHTGREEN_EX,
+            "code": Fore.LIGHTBLUE_EX,
+            "warning": Fore.YELLOW,
+            "output": Fore.LIGHTCYAN_EX,
+        }
+        if color not in color_map:
+            print(text)
+            pretty_print("Invalid color in pretty_print", "warning")
+            return
+        print(color_map[color], text, Fore.RESET)
+    else:
+        color_map = {
+            "success": "green",
+            "failure": "red",
+            "status": "light_green",
+            "code": "light_blue",
+            "warning": "yello",
+            "output": "cyan",
+            "default": "black"
+        }
+        if color not in color_map:
+            color = "default"
+        print(colored(text, color_map[color]))