🚀 Add feature: Frontend app working stub

🚀 Add feature: Ruff linting
🚀 Add feature: Logging

backend/app/models.py

@@ -1,4 +1,4 @@
-from typing import Dict
+from typing import Dict, List
 
 from pydantic import BaseModel
 
@@ -7,6 +7,7 @@ class AnalysisRequest(BaseModel):
     analysis_type: str
     filters: Dict
 
+
 class AnalysisResponse(BaseModel):
     result: str
 
@@ -41,8 +42,19 @@ class GenerateResponse(BaseModel):
 
 
 class ImportRequest(BaseModel):
+    type: str
     data: str
 
 
 class ImportResponse(BaseModel):
     status: str
+
+
+class AvailableSource(BaseModel):
+    display_name: str
+    name: str
+    format: str
+
+
+class AvailableSourcesResponse(BaseModel):
+    sources: List[AvailableSource]