fix: wire fix_wiki_links into extraction pipeline

fix_wiki_links was imported but never called — LLM-generated [[_map]]
dead links and slug-formatted wiki links passed through to claim files.
Now runs after claim file write, before atomic connect.

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

openrouter-extract-v2.py

@@ -36,6 +36,7 @@ sys.path.insert(0, str(Path(__file__).parent))
 
 from lib.extraction_prompt import build_extraction_prompt
 from lib.post_extract import (
+    fix_wiki_links,
     load_existing_claims_from_repo,
     validate_and_fix_claims,
     validate_and_fix_entities,
@@ -456,6 +457,22 @@ def main():
         written.append(filename)
         print(f"  Wrote: {claim_path}")
 
+    # ── Fix wiki links: resolve slugs→spaces, strip dead links ──
+    if written:
+        existing_stems = {Path(c).stem for c in existing_claims}
+        wiki_fix_count = 0
+        for filename in written:
+            claim_path = os.path.join(domain_dir, filename)
+            with open(claim_path) as f:
+                content = f.read()
+            fixed_content, fixes = fix_wiki_links(content, existing_stems)
+            if fixes:
+                with open(claim_path, "w") as f:
+                    f.write(fixed_content)
+                wiki_fix_count += len(fixes)
+        if wiki_fix_count:
+            print(f"  Wiki links: {wiki_fix_count} fixed/stripped")
+
     # ── Atomic connect: wire new claims to existing KB via vector search ──
     connect_stats = {"connected": 0, "edges_added": 0}
     if written: