fix: 优化后端数据更新机制

crawler/extractor_dashscope.py

@@ -13,8 +13,11 @@ from typing import Any, Dict, Optional
 from panel_schema import validate_category, validate_severity, validate_summary
 
 
+EXTRACT_TEXT_MAX_LEN = int(os.environ.get("EXTRACT_TEXT_MAX_LEN", "4000"))
+
+
 def _call_dashscope_extract(text: str, timeout: int = 15) -> Optional[Dict[str, Any]]:
-    """调用阿里云 DashScope 提取结构化数据"""
+    """调用阿里云 DashScope 从新闻全文中提取精确结构化数据，仅填写报道明确给出的数字与事实。"""
     api_key = os.environ.get("DASHSCOPE_API_KEY", "").strip()
     if not api_key or not text or len(str(text).strip()) < 10:
         return None
@@ -23,27 +26,25 @@ def _call_dashscope_extract(text: str, timeout: int = 15) -> Optional[Dict[str,
         from http import HTTPStatus
 
         dashscope.api_key = api_key
+        raw = str(text).strip()[:EXTRACT_TEXT_MAX_LEN]
 
-        prompt = f"""从以下美伊/中东军事新闻中提取可明确推断的数值，输出 JSON。无依据的字段省略不写。
+        prompt = f"""从以下美伊/中东新闻**全文或摘要**中，提取**报道明确给出的数字与事实**，输出 JSON。规则：
+1. 仅填写报道中**直接出现、可核对**的数据，不要推测或估算。
+2. 无明确依据的字段**必须省略**，不要填 0 或猜。
+3. **战损一律按增量**：只填本则报道中「本次/此次/今日」**新增**数量。报道若只给「累计总数」「迄今共」**不要填**该字段。
+4. **攻击地点**：提取双方遭袭地点。美军/盟军基地被打击 → side=us；伊朗/亲伊设施被打击 → side=iran。name_keywords 用「中文|英文」，可填多处。
 
-要求：
-- summary: 1-2句中文事实摘要，≤80字
+字段：
+- summary: 1-2 句中文事实概括，≤80 字
 - category: deployment|alert|intel|diplomatic|other
 - severity: low|medium|high|critical
-- 战损（仅当新闻明确提及数字时填写）:
-  us_personnel_killed, iran_personnel_killed, us_personnel_wounded, iran_personnel_wounded,
-  us_civilian_killed, iran_civilian_killed, us_civilian_wounded, iran_civilian_wounded,
-  us_bases_destroyed, iran_bases_destroyed, us_bases_damaged, iran_bases_damaged.
-  重要：bases_* 仅指已确认损毁/受损的基地数量；"军事目标"/"targets"等泛指不是基地，若报道只说"X个军事目标遭袭"而无具体基地名，不填写 bases_*
-  us_aircraft, iran_aircraft, us_warships, iran_warships, us_armor, iran_armor, us_vehicles, iran_vehicles,
-  us_drones, iran_drones, us_missiles, iran_missiles, us_helicopters, iran_helicopters, us_submarines, iran_submarines,
-  us_tanks, iran_tanks, us_civilian_ships, iran_civilian_ships, us_airport_port, iran_airport_port
-- retaliation_sentiment: 0-100，仅当新闻涉及伊朗报复/反击情绪时
-- wall_street_value: 0-100，仅当新闻涉及美股/市场反应时
-- key_location_updates: 当新闻提及具体基地/设施遭袭时必填，数组 [{{"name_keywords":"阿萨德|asad|assad|阿因","side":"us","status":"attacked","damage_level":1-3}}]。常用关键词：阿萨德|asad|巴格达|baghdad|乌代德|udeid|埃尔比勒|erbil|因吉尔利克|incirlik|德黑兰|tehran|阿巴斯|abbas|布什尔|bushehr|伊斯法罕|isfahan|纳坦兹|natanz
+- 战损（**仅填本则报道的新增增量**）: us_personnel_killed, iran_personnel_killed, us_personnel_wounded, iran_personnel_wounded, us_civilian_killed, iran_civilian_killed, us_civilian_wounded, iran_civilian_wounded, us_bases_destroyed, iran_bases_destroyed, us_bases_damaged, iran_bases_damaged, us_aircraft, iran_aircraft, us_warships, iran_warships, us_armor, iran_armor, us_vehicles, iran_vehicles, us_drones, iran_drones, us_missiles, iran_missiles, us_helicopters, iran_helicopters, us_submarines, iran_submarines, us_carriers, iran_carriers, us_civilian_ships, iran_civilian_ships, us_airport_port, iran_airport_port
+- retaliation_sentiment: 0-100（仅当报道涉及伊朗报复情绪时）
+- wall_street_value: 0-100（仅当报道涉及美股/市场时）
+- key_location_updates: **双方攻击地点**。每项 {{"name_keywords":"阿萨德|asad","side":"us或iran（被打击方）","status":"attacked","damage_level":1-3}}。美军基地：阿萨德|asad、乌代德|udeid、埃尔比勒|erbil、因吉尔利克|incirlik。伊朗：德黑兰|tehran、布什尔|bushehr、伊斯法罕|isfahan、阿巴斯|abbas、纳坦兹|natanz
 
 原文：
-{str(text)[:800]}
+{raw}
 
 直接输出 JSON，不要其他解释："""
 
@@ -86,7 +87,7 @@ def extract_from_news(text: str, timestamp: Optional[str] = None) -> Dict[str, A
     loss_ir = {}
     for k in ["personnel_killed", "personnel_wounded", "civilian_killed", "civilian_wounded",
               "bases_destroyed", "bases_damaged", "aircraft", "warships", "armor", "vehicles",
-              "drones", "missiles", "helicopters", "submarines", "tanks", "civilian_ships", "airport_port"]:
+              "drones", "missiles", "helicopters", "submarines", "carriers", "civilian_ships", "airport_port"]:
         uk, ik = f"us_{k}", f"iran_{k}"
         if uk in parsed and isinstance(parsed[uk], (int, float)):
             loss_us[k] = max(0, int(parsed[uk]))