chore: remove compose.override.yml from repo, add to .gitignore

Local dev override with machine-specific paths and build context;
not useful to other users.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

.gitignore

@@ -236,3 +236,4 @@ __marimo__/
 
 # Streamlit
 .streamlit/secrets.toml
+compose.override.yml

compose.override.yml

@@ -1,8 +0,0 @@
-services:
-  winnow:
-    build: .
-    network_mode: host
-    volumes:
-      - /code/winnow/models:/models
-      - /code/winnow/embeddings:/app/.if_cache
-      - /code/winnow/output:/app/frigate_train