Add project-aware boost to raw query

src/atocore/api/routes.py

@@ -88,6 +88,7 @@ class QueryRequest(BaseModel):
     prompt: str
     top_k: int = 10
     filter_tags: list[str] | None = None
+    project: str | None = None
 
 
 class QueryResponse(BaseModel):
@@ -258,7 +259,12 @@ def api_refresh_project(project_name: str, purge_deleted: bool = False) -> Proje
 def api_query(req: QueryRequest) -> QueryResponse:
     """Retrieve relevant chunks for a prompt."""
     try:
-        chunks = retrieve(req.prompt, top_k=req.top_k, filter_tags=req.filter_tags)
+        chunks = retrieve(
+            req.prompt,
+            top_k=req.top_k,
+            filter_tags=req.filter_tags,
+            project_hint=req.project,
+        )
     except Exception as e:
         log.error("query_failed", prompt=req.prompt[:100], error=str(e))
         raise HTTPException(status_code=500, detail=f"Query failed: {e}")