feat(documents): 增强上传反馈与状态展示

apps/documents/forms.py

@@ -3,14 +3,24 @@ from pathlib import Path
 from django import forms
 
 from apps.scenarios.services import ScenarioNotFound, get_scenario
+from apps.scenarios.services import list_scenarios
 
 SUPPORTED_EXTENSIONS = {".txt", ".md", ".pdf", ".docx"}
 
 
 class DocumentUploadForm(forms.Form):
-    scenario_id = forms.CharField(label="场景")
+    # 使用 ChoiceField 让表单自己维护场景选项，
+    # 这样模板、校验和后续扩展都能围绕一个入口完成。
+    scenario_id = forms.ChoiceField(label="场景", choices=())
     file = forms.FileField(label="文件")
 
+    def __init__(self, *args, **kwargs):
+        super().__init__(*args, **kwargs)
+        self.fields["scenario_id"].choices = [
+            (scenario["id"], scenario["name"])
+            for scenario in list_scenarios()
+        ]
+
     def clean_scenario_id(self):
         scenario_id = self.cleaned_data["scenario_id"]
         try: