feat(attention): 添加注意力优化器以增强提示词多样性和防止注意力退化

refactor(prompt): 使用 asyncio.gather 替代 as_completed 以提升并发性能
refactor(config): 添加注意力优化配置选项
refactor(prompt_params): 增加注意力优化开关

src/config/config.py

@@ -13,6 +13,7 @@ from src.common.logger import get_logger
 from src.config.config_base import ValidatedConfigBase
 from src.config.official_configs import (
     AffinityFlowConfig,
+    AttentionOptimizationConfig,
     BotConfig,
     ChatConfig,
     ChineseTypoConfig,
@@ -406,6 +407,9 @@ class Config(ValidatedConfigBase):
     tool: ToolConfig = Field(..., description="工具配置")
     debug: DebugConfig = Field(..., description="调试配置")
     custom_prompt: CustomPromptConfig = Field(..., description="自定义提示配置")
+    attention_optimization: AttentionOptimizationConfig = Field(
+        default_factory=lambda: AttentionOptimizationConfig(), description="注意力优化配置"
+    )
     voice: VoiceConfig = Field(..., description="语音配置")
     permission: PermissionConfig = Field(..., description="权限配置")
     command: CommandConfig = Field(..., description="命令系统配置")

src/config/official_configs.py

@@ -531,6 +531,16 @@ class CustomPromptConfig(ValidatedConfigBase):
     planner_custom_prompt_content: str = Field(default="", description="规划器自定义提示词内容")
 
 
+class AttentionOptimizationConfig(ValidatedConfigBase):
+    """注意力优化配置类 - 防止提示词过度相似导致LLM注意力退化"""
+
+    enable_noise: bool = Field(default=True, description="启用轻量级噪声注入（空白字符调整）")
+    enable_semantic_variants: bool = Field(default=False, description="启用语义变体替换（实验性功能）")
+    noise_strength: Literal["light", "medium", "heavy"] = Field(
+        default="light", description="噪声强度: light(轻量) | medium(中等) | heavy(强力)"
+    )
+
+
 class ResponsePostProcessConfig(ValidatedConfigBase):
     """回复后处理配置类"""