refactor: vwts_scraper — proper Python package structure

- Split single file into 8 focused modules (399 lines total):
  config.py — constants
  fetch.py — HTTP GET with retries
  paginate.py — page_count + HEAD verification
  parse.py — HTML parsing (topics, posts, tags)
  state.py — per-section state.json
  output.py — JSONL with file rotation
  run.py — main orchestration loop
  __main__.py — CLI entry point
- Run: python -m vwts_scraper <URL>
- Page count method fully tested (13 sections, 100+ topics, 0 errors)
- Resume support (Ctrl+C → state saved)
- Per-section state files (no conflicts between sections)

vwts_scraper/parse.py

@@ -0,0 +1,47 @@
+"""Парсинг HTML: темы, посты, теги."""
+
+import re
+from bs4 import BeautifulSoup
+
+
+def parse_topics(soup: BeautifulSoup) -> list:
+    """Список тем со страницы раздела."""
+    items = []
+    for div in soup.select("div.structItem"):
+        a = div.select_one("div.structItem-title a")
+        if not a:
+            continue
+        m = re.search(r"/topic/(\d+)/", a.get("href", ""))
+        if not m:
+            continue
+        items.append({
+            "id": int(m.group(1)),
+            "title": a.text.strip(),
+            "url": f"https://vwts.ru/forum/topic/{m.group(1)}/"
+        })
+    return items
+
+
+def parse_posts(soup: BeautifulSoup) -> list:
+    """Посты с одной страницы темы."""
+    out = []
+    for art in soup.select("article.message"):
+        aname = art.select_one("h4.message-name")
+        author = aname.get_text(strip=True) if aname else "?"
+        t = art.select_one("time.u-dt")
+        date = t.get("datetime", "") if t else ""
+        n = art.select_one("ul.message-attribution-opposite a")
+        num = n.text.strip() if n else ""
+        content = art.select_one("div.message-content")
+        text = ""
+        if content:
+            for h in content.select("div[style*='none'], span[style*='none'], details"):
+                h.decompose()
+            text = content.get_text("\n", strip=True)
+        out.append({"author": author, "date": date, "num": num, "text": text})
+    return out
+
+
+def parse_tags(soup: BeautifulSoup) -> list:
+    """Теги из шапки темы."""
+    return [t.text.strip() for t in soup.select("li.tagItem a")]