add collected votes directory with persistence

Creates Abstimmungen/ with one markdown file per vote topic, sorted by
party. Uses a JSON backing store so votes are preserved even after they
are removed from the Bundestag website.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

crawler.py

@@ -147,6 +147,7 @@ def main():
     if not args.debug:
         save_raw(bios, args.out)
     save_individuals(bios, args.out)
+    save_votes(bios, args.out)
     save_disclosures(bios, args.out)
 
     if args.no_git:
@@ -203,6 +204,45 @@ def save_disclosures(bios, out):
         party_file.write(party_str.strip())
 
 
+def save_votes(bios, out):
+    dir = f"{out}/Abstimmungen"
+    makedirs(dir, exist_ok=True)
+
+    # Load existing votes to preserve those deleted from the website
+    json_path = f"{dir}/votes.json"
+    try:
+        with open(json_path, "r", encoding="utf-8") as f:
+            all_votes = json.load(f)
+    except FileNotFoundError:
+        all_votes = {}
+
+    # Merge new votes
+    for bio in bios:
+        if not bio.votes:
+            continue
+        rep_name = f"{bio.name[1]} {bio.name[0]}"
+        for vote in bio.votes:
+            topic, date, result = vote[0], vote[1], vote[2]
+            key = f"{topic} ({date})"
+            if key not in all_votes:
+                all_votes[key] = {}
+            all_votes[key][rep_name] = {"party": bio.party, "vote": result}
+
+    # Save JSON backing store
+    with open(json_path, "w", encoding="utf-8") as f:
+        json.dump(all_votes, f, indent=2, ensure_ascii=False)
+
+    # Generate one markdown file per vote topic
+    for key, votes in sorted(all_votes.items()):
+        md = f"# {key}\n\n"
+        for name in sorted(votes, key=lambda n: votes[n]["party"]):
+            info = votes[name]
+            md += f"- {name} ({info['party']}): {info['vote']}\n"
+        safe_name = re.sub(r'[/<>:"|?*]', "_", key)[:200]
+        with open(f"{dir}/{safe_name}.md", "w", encoding="utf-8") as f:
+            f.write(md)
+
+
 def group_by_party(bios):
     grouped = {}
     for bio in bios: