fix(tech): preserve h1 elements — do not strip first heading

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

pipelines/tech/publish.py

@@ -11,7 +11,7 @@ import frontmatter
 import mwclient
 
 sys.path.insert(0, str(Path(__file__).resolve().parent.parent.parent))
-from lib.wiki import AUTO_BANNER_PREFIX, connect_wiki, markdown_to_wikitext, strip_first_h1
+from lib.wiki import AUTO_BANNER_PREFIX, connect_wiki, markdown_to_wikitext
 
 
 def validate(fm: dict, path: Path) -> None:
@@ -56,7 +56,7 @@ def publish_one(abs_path: Path, source_dir: Path, post, site: mwclient.Site, sou
     fm = post.metadata
     title = str(fm["title"])
 
-    body_wikitext = markdown_to_wikitext(strip_first_h1(post.content))
+    body_wikitext = markdown_to_wikitext(post.content)
     source_url = f"{gitea_repo_url}/src/commit/{source_ref}/{rel}"
     page_content = build_wikitext(fm, body_wikitext, source_url, source_ref)