feat:New database migration, new adaptation root path configuration

apps/base/models.py

@@ -40,6 +40,44 @@ class FileCodes(Model):
         auto_now_add=True, description="创建时间"
     )
 
+    file_hash = fields.CharField(
+        max_length=128,  # SHA-256需要64字符，这里预留扩展空间
+        description="文件哈希值",
+        unique=True,
+        null=True  # 允许旧数据为空
+    )
+    hash_algorithm = fields.CharField(
+        max_length=20,
+        description="哈希算法类型",
+        null=True,
+        default="sha256"
+    )
+
+    class FileCodes(Model):
+        # 新增分片字段
+        chunk_size = fields.IntField(
+            description="分片大小(字节)",
+            default=0
+        )
+        total_chunks = fields.IntField(
+            description="总分片数",
+            default=0
+        )
+        uploaded_chunks = fields.IntField(
+            description="已上传分片数",
+            default=0
+        )
+        upload_status = fields.CharField(
+            max_length=20,
+            description="上传状态",
+            default="pending",  # pending/in_progress/completed
+            choices=["pending", "in_progress", "completed"]
+        )
+        is_chunked = fields.BooleanField(
+            description="是否分片上传",
+            default=False
+        )
+
     async def is_expired(self):
         # 按时间
         if self.expired_at is None:
@@ -54,6 +92,31 @@ class FileCodes(Model):
         return f"{self.file_path}/{self.uuid_file_name}"
 
 
+class FileChunks(Model):
+    id = fields.IntField(pk=True)
+    file_code = fields.ForeignKeyField(
+        "models.FileCodes",
+        related_name="chunks",
+        on_delete=fields.CASCADE
+    )
+    chunk_number = fields.IntField(description="分片序号")
+    chunk_hash = fields.CharField(
+        max_length=128,
+        description="分片哈希校验值"
+    )
+    chunk_path = fields.CharField(
+        max_length=255,
+        description="分片存储路径"
+    )
+    created_at = fields.DatetimeField(
+        auto_now_add=True,
+        description="上传时间"
+    )
+
+    class Meta:
+        unique_together = [("file_code", "chunk_number")]
+
+
 class KeyValue(Model):
     id: Optional[int] = fields.IntField(pk=True)
     key: Optional[str] = fields.CharField(