fix(db): unify table name prefix to mjk_ for update tables

- Rename app_releases → mjk_app_releases
- Rename release_packages → mjk_release_packages
- Update ForeignKey reference and migration file
- Add pre-commit hook: check_table_prefix.py to prevent future violations

python-api/scripts/check_table_prefix.py

@@ -0,0 +1,46 @@
+#!/usr/bin/env python3
+"""
+检查所有模型的 __tablename__ 是否以 mjk_ 开头
+
+用法:
+    python scripts/check_table_prefix.py
+
+退出码:
+    0 - 所有表名合规
+    1 - 有表名缺少 mjk_ 前缀
+"""
+
+import re
+import sys
+from pathlib import Path
+
+
+MODELS_DIR = Path("app/models")
+TABLENAME_RE = re.compile(r'__tablename__\s*=\s*"([^"]+)"')
+
+
+def check() -> int:
+    violations = []
+
+    for py_file in sorted(MODELS_DIR.glob("*.py")):
+        content = py_file.read_text(encoding="utf-8")
+        for match in TABLENAME_RE.finditer(content):
+            table_name = match.group(1)
+            if not table_name.startswith("mjk_"):
+                violations.append((py_file.name, table_name))
+
+    if violations:
+        print("❌ 表名前缀检查失败：以下模型的 __tablename__ 缺少 'mjk_' 前缀\n")
+        for filename, table_name in violations:
+            print(f"  {filename}: __tablename__ = \"{table_name}\"")
+        print(
+            "\n修复方式：将表名改为 mjk_<name> 格式，与其他模型保持一致。\n"
+        )
+        return 1
+
+    print("✅ 所有模型表名均以 'mjk_' 开头")
+    return 0
+
+
+if __name__ == "__main__":
+    sys.exit(check())