Add EP final roll-call votes of Austrian MEPs

Uses the European Parliament's open data (CC BY 4.0) rather than
HowTheyVote, whose dump is ODbL share-alike and behind a robots.txt block.
Also documents the raw archive ownership step for Unraid.

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

docs/deployment-unraid.md

@@ -23,6 +23,10 @@
    docker compose build
    docker compose up -d
    ```
+   Docker creates `${DATA_DIR}/raw` as root, but the backend runs as a non-root user, and every fetch
+   then fails with "Permission denied". Hand it over once after the first `up`:
+   `chown -R "$(docker run --rm --entrypoint id politrack-backend -u):$(docker run --rm --entrypoint id politrack-backend -g)" "$DATA_DIR/raw"`.
+
    `migrate` runs once (schema, seed data, source registry, job-queue tables), then `api`, `web`, `mcp`
    and three workers start:
 

docs/roadmap.md

@@ -32,6 +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] Pages: organisations, money explorer, social feed, Wikipedia edits, person network ("follow the money"),
       say-vs-vote on roll calls
 
@@ -45,7 +46,6 @@ Next.js frontend (de/en), Docker Compose for Unraid.
 
 **Data**
 - [ ] Full speech texts and interjections from the protocols; committee memberships (list 250)
-- [ ] HowTheyVote.eu / EP roll-call votes of Austrian MEPs
 - [ ] EU Council participant lists, ministries' press releases, Federal President's schedule
 - [ ] Election results and candidate lists; AMA/TAM subsidy recipients (after checking bulk access and terms)
 - [ ] Cabinet staff and appointments to state-owned companies (from answers to parliamentary questions)

docs/sources.md

@@ -45,6 +45,7 @@ Status: ✅ implemented (adapter name in `code`) · 🟡 planned · ⛔ delibera
 | Public procurement – data.gv.at "Vergabe-Kerndaten" | **contract awards**: buyer, winner, amount, CPV (eForms) | OGD hub catalogue → per-publisher XML | open data (CC BY 4.0) | ✅ `vergabe.awards` |
 | RTR / KommAustria Medientransparenz | **government advertising** and **media subsidies** per payer → medium | open-data API | free re-use, attribution | ✅ `rtr.medientransparenz` |
 | European Parliament | Austrian MEPs, roles, **declarations of interests** | open-data/website XML | CC BY 4.0 | ✅ `europarl.meps` |
+| – plenary roll calls | **final votes** of Austrian MEPs (whole texts, no amendments), with totals and later corrections | Open Data API v2 (`/meetings/{id}/decisions`) | CC BY 4.0 | ✅ `europarl.votes` |
 | European Commission – meetings | meetings of Commissioners/cabinets with **interest representatives** (Austrians and Austrian organisations) | XLSX export | EU re-use policy | ✅ `eu.commission_meetings` |
 | Wikipedia (de/en) | anonymous edits from **parliament/government IP ranges** (`config/ip_ranges.yaml`) | MediaWiki API `usercontribs` | CC BY-SA (edit metadata) | ✅ `wikipedia.institution_edits` |
 | Google Political Ads Transparency | Austrian political ads: advertiser, spend bracket, impressions | public bundle (zip, CSV) | Google's transparency report terms | ✅ `ads.google` |
@@ -66,7 +67,7 @@ Status: ✅ implemented (adapter name in `code`) · 🟡 planned · ⛔ delibera
 |---|---|---|---|---|
 | Wikidata | positions incl. Landtage and mayors, party membership, careers, birth dates, **social-media handles**, ids | SPARQL | CC0 | ✅ `wikidata.politicians` |
 | GDELT DOC 2.0 | article metadata for politicians' names, attributed to the original outlets | API, ≤ 1 request / 5 s | free | ✅ `gdelt.coverage` (supplement; thin for Austrian outlets) |
-| HowTheyVote.eu | EP roll-call votes | CSV dump | check licence | 🟡 |
+| HowTheyVote.eu | EP roll-call votes | CSV dump on GitHub (robots.txt blocks its download path), API | ODbL 1.0 (share-alike) | ⛔ not needed: `europarl.votes` takes the same votes from the EP under CC BY 4.0 |
 | OpenSanctions | PEP cross-references | bulk JSON | CC BY-NC 4.0 | 🟡 non-commercial only |
 | MeineAbgeordneten.at | curated dossiers | – | sui-generis database right (§76c UrhG) | ⛔ scraping → 🟡 ask for a partnership |
 | Parteispenden.at | party-finance analysis | – | ask | 🟡 partnership |