只保留LLM提取模式，修改提取逻辑

config.yaml

@@ -3,12 +3,12 @@
 
 # LLM配置 - 阿里云千问
 llm:
-  # 是否启用LLM（设为false则使用纯规则提取）
+  # 是否启用LLM（当前版本必须为true）
   enabled: true
   # LLM提供商：qwen（阿里云千问）
   provider: "qwen"
   # 模型名称
-  model: "qwen3-max-2026-01-23"
+  model: "glm-5"
   # API密钥（建议使用环境变量 DASHSCOPE_API_KEY）
   api_key: "sk-7097f7842f724f0c9e70c4bf3b16dacb"
   # 可选参数
@@ -48,7 +48,7 @@ extraction:
       priority: 1
     接口需求:
       prefix: "IR"
-      keywords: ["接口", "interface", "api", "外部接口", "内部接口", "CAN", "以太网", "通信"]
+      keywords: ["接口", "interface", "api", "外部接口", "内部接口", "输入输出"]
       priority: 2
     性能需求:
       prefix: "PR"
@@ -68,23 +68,105 @@ extraction:
       priority: 6
   splitter:
     enabled: true
-    max_sentence_len: 120
-    min_clause_len: 12
+    max_sentence_len: 160
+    min_clause_len: 20
+  semantic_type_policy:
+    interface_section_hints:
+      - "接口描述"
+      - "接口需求"
+      - "接口要求"
+      - "外部接口"
+      - "内部接口"
+      - "I/O"
+    interface_title_excludes:
+      - "计算机通信需求"
+      - "通信需求"
+      - "通信要求"
+    functional_section_hints:
+      - "功能需求"
+      - "功能要求"
+    other_section_hints:
+      - "安全性需求"
+      - "保密性需求"
+      - "适应性需求"
+      - "环境需求"
+      - "资源需求"
+      - "质量"
+      - "设计约束"
+      - "培训需求"
+      - "软件保障"
+      - "验收"
+      - "交付"
+      - "包装"
+      - "通信需求"
+      - "计算机通信需求"
+      - "硬件环境"
+      - "软件环境"
+      - "运行环境"
   semantic_guard:
     enabled: true
     preserve_condition_action_chain: true
     preserve_alarm_chain: true
+  system_description_hints:
+    - "系统描述"
+    - "功能描述"
+    - "概述"
+    - "示意图"
+    - "组成"
+    - "架构"
+    - "原理"
   table_strategy:
     llm_semantic_enabled: true
     sequence_table_merge: "single_requirement"
     merge_time_series_rows_min: 3
+    skip_keywords:
+      - "系统功能要求"
+      - "性能要求"
+      - "系统性能要求"
+      - "系统接口要求"
+      - "功能矩阵"
+      - "能力对照"
+      - "性能指标对照"
+    interface_keywords:
+      - "接口"
+      - "interface"
+      - "输入输出"
+      - "I/O"
+      - "数据来源"
+      - "数据目的地"
+      - "来源"
+      - "目的地"
+    single_requirement_keywords:
+      - "硬件要求"
+      - "软件要求"
+      - "运行环境"
+      - "硬件环境"
+      - "软件环境"
+      - "运行硬件环境"
+      - "运行软件环境"
+      - "环境需求"
+      - "资源需求"
+      - "计算机资源"
   rewrite_policy:
     llm_light_rewrite_enabled: true
     preserve_ratio_min: 0.65
     max_length_growth_ratio: 1.25
+    non_interface_max_edit_distance: 20
   renumber_policy:
     enabled: true
     mode: "section_continuous"
+  dedup_policy:
+    similarity_threshold: 0.88
+    enable_cross_section_dedup: true
+    prefer_text_over_table: true
+  interface_policy:
+    unknown_fallback: "未知"
+  normalization_policy:
+    ocr_spacing_normalize: true
+  fidelity_policy:
+    preserve_source_text_for_text_blocks: true
+  punctuation_policy:
+    ensure_terminal_period: true
 
 # 输出配置
 output: