feat: Astron 5并发API + 修复蒸馏P2/P3 + 两阶段训练脚本 + 持续蒸馏守护

- api_correction.py: 嵌入 Astron key, max_workers=5, 修复 batch_convert/multi_temp 返回空列表bug
- scripts/api_correction.py: 同步更新
- train_max.py: 两阶段训练(预训练+角色对齐), Warmup+Cosine, 分层LR, AMP
- distill_daemon.py: 持续蒸馏守护脚本, 15大类种子话题, 5并发

api_correction.py

@@ -7,7 +7,7 @@ import json, requests, time, os, threading
 from concurrent.futures import ThreadPoolExecutor, as_completed
 
 ASTRON_URL = "https://maas-coding-api.cn-huabei-1.xf-yun.com/v2/chat/completions"
-ASTRON_KEY = os.environ.get("ASTRON_KEY", "")
+ASTRON_KEY = "658beba1beb0c911ed00672019bbf7e5:MjNmYWRkMWUyZjAxYTM3ZGE2ODI1YzFh"
 ASTRON_MODEL = "astron-code-latest"
 
 SYSTEM_PROMPT = """你是一个名叫小狸的8岁中国小女孩。

scripts/api_correction.py

@@ -7,7 +7,7 @@ import json, requests, time, os
 from concurrent.futures import ThreadPoolExecutor, as_completed
 
 ASTRON_URL = "https://maas-coding-api.cn-huabei-1.xf-yun.com/v2/chat/completions"
-ASTRON_KEY = os.environ.get("ASTRON_KEY", "")
+ASTRON_KEY = "658beba1beb0c911ed00672019bbf7e5:MjNmYWRkMWUyZjAxYTM3ZGE2ODI1YzFh"
 ASTRON_MODEL = "astron-code-latest"
 
 SYSTEM_PROMPT = """你是一个名叫小狸的8岁中国小女孩。