Auto-create athlete in startlist for unrecognized bib numbers

When a bib number is detected (via OCR or manual entry during review)
but not found in the start list, it is now automatically added with
the placeholder name "Ukjent #<nr>" instead of being left without a
profile_id (which would exclude it from results).

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

backend/api.py

@@ -22,6 +22,7 @@ from profile_db import (
     clear_startlist,
     delete_athlete,
     get_db,
+    get_or_create_athlete,
     import_startlist_csv,
     list_athletes,
 )
@@ -213,8 +214,11 @@ class ResolveRequest(BaseModel):
 
 @app.post("/api/passages/{passage_id}/resolve")
 async def resolve(passage_id: str, body: ResolveRequest, db=Depends(get_connection)):
+    profile_id = body.profile_id
+    if body.bib_number and not profile_id:
+        profile_id = await get_or_create_athlete(db, body.bib_number)
     ok = await resolve_passage(db, passage_id,
-                               profile_id=body.profile_id,
+                               profile_id=profile_id,
                                bib_number=body.bib_number,
                                review_note=body.review_note)
     if not ok: