feat(documents): 支持文档上传与本地RAG入库

apps/documents/models.py

@@ -0,0 +1,23 @@
+from django.db import models
+
+
+class UploadedDocument(models.Model):
+    STATUS_UPLOADED = "uploaded"
+    STATUS_INDEXED = "indexed"
+    STATUS_FAILED = "failed"
+
+    scenario_id = models.CharField(max_length=100, db_index=True)
+    original_name = models.CharField(max_length=255)
+    file = models.FileField(upload_to="documents/%Y%m%d/")
+    file_type = models.CharField(max_length=20)
+    size = models.PositiveIntegerField(default=0)
+    status = models.CharField(max_length=20, default=STATUS_UPLOADED, db_index=True)
+    error_message = models.TextField(blank=True)
+    created_at = models.DateTimeField(auto_now_add=True)
+    updated_at = models.DateTimeField(auto_now=True)
+
+    class Meta:
+        ordering = ["-created_at"]
+
+    def __str__(self) -> str:
+        return self.original_name