fix: Update type hints to use newer Python syntax

- Replace Dict, List, Optional with dict, list,  < /dev/null |  None syntax
- Fix abstract method implementation in message.py
- Improve type annotations and function return types
- Remove unreachable code in get_current_task_tool.py
- Refactor HTML elements to use style attributes

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

src/do_tool/not_used/change_mood.py

@@ -3,7 +3,7 @@ from src.config.config import global_config
 from src.common.logger_manager import get_logger
 from src.plugins.moods.moods import MoodManager
 
-from typing import Dict, Any
+from typing import Any
 
 logger = get_logger("change_mood_tool")
 
@@ -22,7 +22,7 @@ class ChangeMoodTool(BaseTool):
         "required": ["text", "response_set"],
     }
 
-    async def execute(self, function_args: Dict[str, Any], message_txt: str = "") -> Dict[str, Any]:
+    async def execute(self, function_args: dict[str, Any], message_txt: str = "") -> dict[str, Any]:
         """执行心情改变
 
         Args:
@@ -30,7 +30,7 @@ class ChangeMoodTool(BaseTool):
             message_txt: 原始消息文本
 
         Returns:
-            Dict: 工具执行结果
+            dict: 工具执行结果
         """
         try:
             response_set = function_args.get("response_set")

src/do_tool/not_used/change_relationship.py

@@ -19,7 +19,7 @@ class RelationshipTool(BaseTool):
         "required": ["text", "changed_value", "reason"],
     }
 
-    async def execute(self, function_args: Dict[str, Any], message_txt: str = "") -> dict:
+    async def execute(self, function_args: dict[str, Any], message_txt: str = "") -> dict:
         """执行工具功能
 
         Args:

src/do_tool/not_used/get_current_task.py

@@ -1,7 +1,7 @@
 from src.do_tool.tool_can_use.base_tool import BaseTool
 from src.plugins.schedule.schedule_generator import bot_schedule
 from src.common.logger import get_module_logger
-from typing import Dict, Any
+from typing import Any
 from datetime import datetime
 
 logger = get_module_logger("get_current_task_tool")
@@ -21,7 +21,7 @@ class GetCurrentTaskTool(BaseTool):
         "required": ["start_time", "end_time"],
     }
 
-    async def execute(self, function_args: Dict[str, Any], message_txt: str = "") -> Dict[str, Any]:
+    async def execute(self, function_args: dict[str, Any], message_txt: str = "") -> dict[str, Any]:
         """执行获取当前任务或指定时间段的日程信息
 
         Args:
@@ -29,7 +29,7 @@ class GetCurrentTaskTool(BaseTool):
             message_txt: 原始消息文本，此工具不使用
 
         Returns:
-            Dict: 工具执行结果
+            dict: 工具执行结果
         """
         start_time = function_args.get("start_time")
         end_time = function_args.get("end_time")
@@ -55,5 +55,6 @@ class GetCurrentTaskTool(BaseTool):
                 task_info = "\n".join(task_list)
             else:
                 task_info = f"在 {start_time} 到 {end_time} 之间没有找到日程信息"
-
+        else:
+            task_info = "请提供有效的开始时间和结束时间"
         return {"name": "get_current_task", "content": f"日程信息: {task_info}"}

src/do_tool/not_used/mid_chat_mem.py

@@ -1,6 +1,6 @@
 from src.do_tool.tool_can_use.base_tool import BaseTool
 from src.common.logger import get_module_logger
-from typing import Dict, Any
+from typing import Any
 
 logger = get_module_logger("get_mid_memory_tool")
 
@@ -18,7 +18,7 @@ class GetMidMemoryTool(BaseTool):
         "required": ["id"],
     }
 
-    async def execute(self, function_args: Dict[str, Any], message_txt: str = "") -> Dict[str, Any]:
+    async def execute(self, function_args: dict[str, Any], message_txt: str = "") -> dict[str, Any]:
         """执行记忆获取
 
         Args:
@@ -26,7 +26,7 @@ class GetMidMemoryTool(BaseTool):
             message_txt: 原始消息文本
 
         Returns:
-            Dict: 工具执行结果
+            dict: 工具执行结果
         """
         try:
             id = function_args.get("id")

src/do_tool/not_used/send_emoji.py

@@ -17,7 +17,7 @@ class SendEmojiTool(BaseTool):
         "required": ["text"],
     }
 
-    async def execute(self, function_args: Dict[str, Any], message_txt: str = "") -> Dict[str, Any]:
+    async def execute(self, function_args: dict[str, Any], message_txt: str = "") -> dict[str, Any]:
         text = function_args.get("text", message_txt)
         return {
             "name": "send_emoji",