Pull in index from new repository, due to LFS size limits on HF Spaces

.gitmodules

@@ -0,0 +1,3 @@
+[submodule "faiss"]
+	path = faiss
+	url = [email protected]:colonelwatch/abstracts-index-faiss

app.py

@@ -242,7 +242,7 @@ def main():
     prompt_name = get_env_var("PROMPT_NAME")
     trust_remote_code = get_env_var("TRUST_REMOTE_CODE", bool, default=False)
     fp16 = get_env_var("FP16", bool, default=False)
-    dir = get_env_var("DIR", Path, default=Path("index"))
+    dir = get_env_var("DIR", Path, default=Path("faiss/index"))
     search_time_s = get_env_var("SEARCH_TIME_S", float, default=1)
     k = get_env_var("K", int, default=20)  # TODO: can't go higher than 20 yet
     mailto = get_env_var("MAILTO", str, None)

faiss

@@ -0,0 +1 @@
+Subproject commit 652454ca78e307c0d9262da278619570f4ad120d