Add EP amendment and part votes, hidden from general lists by default

They come from the same responses as final votes. A sitting has over a
hundred, so they are flagged part_vote and only appear on request: the vote
lists have an option for them, feeds, counts and search chunks leave them out.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

docs/roadmap.md

@@ -32,7 +32,7 @@ Next.js frontend (de/en), Docker Compose for Unraid.
 - [x] Social: Bluesky, Mastodon, public Telegram channels, YouTube (key), X via official API (token);
       party/institution channels; curated `social_accounts.yaml`
 - [x] X deletion sync (`social.x_deletions`): posts gone from X keep a marked record without their text
-- [x] EP final roll-call votes of Austrian MEPs (`europarl.votes`)
+- [x] EP roll-call votes of Austrian MEPs, including amendments and part votes (`europarl.votes`)
 - [x] Committee memberships of the configured legislative periods (list 250, `parlament.persons`)
 - [x] Draft legal pages (`/impressum`, `/datenschutz`), corrections contact, portrait proxy (`/api/img`)
 - [x] Pages: organisations, money explorer, social feed, Wikipedia edits, person network ("follow the money"),
@@ -70,6 +70,7 @@ Next.js frontend (de/en), Docker Compose for Unraid.
 - [ ] Optional accounts via reverse-proxy SSO using `app_user`
 - [ ] Partnerships: MeineAbgeordneten, Parteispenden.at, APA (OTS full-text licence)
 - [ ] Map view of trips and appearances
+- [ ] Semantic search with embeddings (`POLITRACK_OLLAMA_URL`): parked by the owner on 2026-11-09, full-text search only for now
 
 ## Not yet verified (v2)