Redo draft-analysis endpoint

Redo draft analysis endpoint to return mock data and call the llm as a simple query, not a function.

Closes #17 (closed) and #18 (closed)

api/server.py

@@ -305,7 +305,7 @@ async def draft_analysis(
     ```
     draft_analysis: str = "This is an overly long proposal about how important it is to snowboard"
     query: str = "Kids Must Snowboard: A Proposal in Sixteen Parts..."
-    considerations: "You are a helpful agent who summarizes philanthropic proposals in about 200 words."
+    considerations: str = "You are a helpful agent who summarizes philanthropic proposals in about 200 words."
     id: str = "run-012cffe2-5d3d-424d-83b5-51c6d4a593d1-0"
     ```