Fix drafts search to include author names

Clicking an author in the network graph opens /drafts?q=AuthorName
but search only checked draft name/title/summary. Now also matches
against author names via a JOIN on draft_authors + authors tables.

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

src/webui/data.py

@@ -74,6 +74,17 @@ def get_drafts_page(
     """
     pairs = db.drafts_with_ratings(limit=1000)
 
+    # Build author lookup for search (draft_name -> "author1 author2 ...")
+    author_text_by_draft: dict[str, str] = {}
+    if search:
+        rows = db.conn.execute(
+            """SELECT da.draft_name, GROUP_CONCAT(a.name, ' ') as names
+               FROM draft_authors da JOIN authors a ON da.person_id = a.person_id
+               GROUP BY da.draft_name"""
+        ).fetchall()
+        for r in rows:
+            author_text_by_draft[r[0]] = r[1] or ""
+
     # Filter
     filtered = []
     for draft, rating in pairs:
@@ -84,7 +95,8 @@ def get_drafts_page(
         if source and draft.source != source:
             continue
         if search:
-            haystack = f"{draft.name} {draft.title} {rating.summary}".lower()
+            author_names = author_text_by_draft.get(draft.name, "")
+            haystack = f"{draft.name} {draft.title} {rating.summary} {author_names}".lower()
             if not all(w in haystack for w in search.lower().split()):
                 continue
         filtered.append((draft, rating))