BIG FIX: profile save + sport classification + KUD separation

1) auth/auth_v2.py — update_me bug fix:
   PUT /auth/me return value was 'return me(user)' but me() is a
   FastAPI route handler, not callable directly. Replaced with explicit
   re-fetch returning correct JSON shape. Profile changes now persist
   in UI after save.

2) DB: HNK Goranin Delnice (id 782) sport='skijanje' → 'nogomet'
   + napomena cross-contamination cleaned (id 782, 192, 347, 2280)
   + general rule: NK/HNK/Nogometni klub → nogomet
   + RK/Rukometni klub → rukomet
   + OK/Odbojkaški klub → odbojka

3) DB: KUD/folklorne/lovačke/vatrogasne udruge marked as
   sport='kulturno-umjetnicko' + razina='NE-sportsko' so frontend
   can filter them out of sportski savezi list

4) Backup: pgz_sport.klubovi_backup_20260505_0857

Verified: PUT /auth/me with damir@pgz.hr persists telefon change to DB
and returns fresh data

_audit/data_integrity_20260505_0836/A_counters.json

@@ -0,0 +1,13 @@
+{
+  "dup_groups": 3,
+  "merged": 3,
+  "soft_deleted": 3,
+  "errors": 0,
+  "fk_rows_reparented_total": 0,
+  "fk_rows_already_on_auth": 33,
+  "fk_conflicts_skipped": 0,
+  "before_clanovi": 3243,
+  "after_clanovi": 3240,
+  "clanovi_purged_total": 3,
+  "remaining_dup_groups": 0
+}