refactor: remove publisher, add auto DB sync, clean backups, update docs

platform/backend/app/core/generator.py

@@ -30,6 +30,11 @@ def run_creator(topic_id: str = None):
     )
     if result.returncode != 0:
         logger.error(f"Creator failed: {result.stderr}")
+        if topic_id:
+            try:
+                sync_topic_to_db(topic_id)
+            except Exception as e:
+                logger.warning(f"Sync after creation failed: {e}")
         return {"ok": False, "error": result.stderr}
     
     # 解析日志，找出选择了哪个选题
@@ -42,6 +47,7 @@ def run_creator(topic_id: str = None):
         if "选题" in line and "已标记为「待发布」" in line:
             # 如: 2026-04-16 ... INFO - 选题 A01 已标记为「待发布」
             import re
+from .sync import sync_topic_to_db
             m = re.search(r'选题\s+([A-Za-z0-9]+)', line)
             if m:
                 topic_id = m.group(1)

platform/backend/app/core/publisher.py

@@ -1,49 +0,0 @@
-from pathlib import Path
-import subprocess
-import sys
-
-PROJECT_ROOT = Path(__file__).resolve().parents[4]
-
-def run_publisher(topic_id: str = None):
-    """运行发布包生成脚本
-    
-    Args:
-        topic_id: 可选，指定单个选题ID
-        
-    Returns:
-        dict: 包含 ok, result/error, topic_id 等字段
-    """
-    try:
-        script_path = PROJECT_ROOT / "scripts" / "publisher.py"
-        if not script_path.exists():
-            return {"ok": False, "error": f"Publisher script not found: {script_path}"}
-        
-        cmd = [sys.executable, str(script_path)]
-        if topic_id:
-            cmd.extend(["--topic-id", topic_id])
-        
-        result = subprocess.run(
-            cmd,
-            capture_output=True,
-            text=True,
-            cwd=PROJECT_ROOT,
-            timeout=300  # 5分钟超时
-        )
-        
-        if result.returncode == 0:
-            return {
-                "ok": True,
-                "result": result.stdout,
-                "topic_id": topic_id
-            }
-        else:
-            return {
-                "ok": False,
-                "error": result.stderr,
-                "result": result.stdout,
-                "topic_id": topic_id
-            }
-    except subprocess.TimeoutExpired:
-        return {"ok": False, "error": "Publisher timed out after 5 minutes", "topic_id": topic_id}
-    except Exception as e:
-        return {"ok": False, "error": str(e), "topic_id": topic_id}