fix(URGENT): SPA fallback serves sport2.html + 9 routers __future__ position

BUGS FIXED:
1. _serve_spa_fallback() returned index.html instead of sport2.html
   → User clicked /analitika /sufinanciranje etc and got wrong UI (DABI title)
   → Should serve sport2.html (PGZ SPORT - Platforma) with Analiza/Mreza/Link tabs

2. 9 router files had "from __future__" NOT at top of file
   → SyntaxError on import → routers SKIPPED → intermittent API failures
   → Affected: ocr.py, ocr_router.py, putni_nalozi.py, obrasci_router.py,
     clan_panel_router.py, audit_seal_router.py, erp_full_router.py,
     notif_router.py, seal.py

ROOT CAUSE:
Prior dehardcode batch (Master Zakon #1 sweep) inserted env-loading
imports BEFORE "from __future__ import annotations" — Python parser
requires __future__ FIRST.

FIX:
- _serve_spa_fallback() candidates list: sport2.html first
- Moved __future__ to top (preserving shebang + encoding + comments) in all 9

VERIFIED:
- 0 failed routers (was 7+)
- Analiza API: 10/10 success ~60-87ms
- Summary API: 5/5 success ~40ms
- sport.rinet.one/ → PGZ SPORT - Platforma (Analiza+Mreza tabs)
- All 9 SPA fallback routes serve sport2.html

Damir uploaded screenshot showing Analiza tab working (2,049 igraca,
82 klubova) but described as intermittent — root cause was router fails
causing some API endpoints to be missing/unreliable. Fixed.

blockchain/seal.py

@@ -1,4 +1,5 @@
 #!/usr/bin/env python3
+from __future__ import annotations
 from dotenv import load_dotenv
 load_dotenv('/opt/rinet-gpu/.env.master')
 # auto-added by patch_scrapers_with_dotenv.sh
@@ -37,7 +38,6 @@ list_seals(action=None, ref_type=None, ref_id=None, limit=50) -> list[dict]
 The module is import-safe even on hosts without web3 installed; the LIVE branch
 just becomes a no-op.
 """
-from __future__ import annotations
 
 import os
 import json

erp/ocr.py

@@ -1,4 +1,5 @@
 #!/usr/bin/env python3
+from __future__ import annotations
 from dotenv import load_dotenv
 load_dotenv('/opt/rinet-gpu/.env.master')
 # auto-added by patch_scrapers_with_dotenv.sh
@@ -8,7 +9,6 @@ load_dotenv('/opt/rinet-gpu/.env.master')
 # Description: /api/erp/ocr/upload + /parse — Tesseract OCR + DeepSeek V3 LLM extraction
 #              Persists into pgz_sport.invoice_uploads, then offers structured invoice parse.
 
-from __future__ import annotations
 
 import os
 import re

erp/putni_nalozi.py

@@ -1,4 +1,5 @@
 #!/usr/bin/env python3
+from __future__ import annotations
 from dotenv import load_dotenv
 load_dotenv('/opt/rinet-gpu/.env.master')
 # auto-added by patch_scrapers_with_dotenv.sh
@@ -8,7 +9,6 @@ import os
 # Date:   2026-05-04
 # Description: CRUD putnih naloga + obračun dnevnica (HR pravilnik 2025).
 
-from __future__ import annotations
 
 import json
 from datetime import datetime, date, timedelta

pgz_sport_api.py

@@ -3169,8 +3169,14 @@ _MISSING_TABS = ["sufinanciranje", "trezor", "dashboard", "analitika", "pravila"
 def _serve_spa_fallback():
     import os
     from fastapi.responses import FileResponse, HTMLResponse
-    candidates = ["/opt/pgz-sport/sport.html", "/opt/pgz-sport/static/index.html",
+    # sport.rinet.one main UI is sport2.html (has Analiza, Mreza, Link Analiza tabs)
-                  "/opt/pgz-sport/index.html"]
+    candidates = [
+        "/opt/pgz-sport/static/sport2.html",
+        "/opt/pgz-sport/sport2.html",
+        "/opt/pgz-sport/sport.html",
+        "/opt/pgz-sport/static/index.html",
+        "/opt/pgz-sport/index.html",
+    ]
     for c in candidates:
         if os.path.exists(c):
             return FileResponse(c)

routers/audit_seal_router.py

@@ -1,3 +1,4 @@
+from __future__ import annotations
 from dotenv import load_dotenv
 load_dotenv('/opt/rinet-gpu/.env.master')
 # auto-added by patch_scrapers_with_dotenv.sh
@@ -43,7 +44,6 @@ audit_log() — shared helper for other routers (cc2/4/5/6)
              payload={'changed':['email']}, user_id=u['id'], user_email=u['email'])
 Fail-soft: never raises, only writes to stderr on error.
 """
-from __future__ import annotations
 import sys, os, json, traceback
 from datetime import date, datetime
 from typing import Any, Optional

routers/clan_panel_router.py

@@ -1,4 +1,5 @@
 #!/usr/bin/env python3
+from __future__ import annotations
 from dotenv import load_dotenv
 load_dotenv('/opt/rinet-gpu/.env.master')
 # auto-added by patch_scrapers_with_dotenv.sh
@@ -17,7 +18,6 @@ Endpointi (montirani na /api/crm):
   POST /clanovi/{id}/avatar    → upload slike
   GET  /clanovi/search?q=...   → quick search za panel
 """
-from __future__ import annotations
 
 import os
 import io

routers/erp_full_router.py

@@ -1,4 +1,5 @@
 #!/usr/bin/env python3
+from __future__ import annotations
 from dotenv import load_dotenv
 load_dotenv('/opt/rinet-gpu/.env.master')
 # auto-added by patch_scrapers_with_dotenv.sh
@@ -17,7 +18,6 @@ load_dotenv('/opt/rinet-gpu/.env.master')
 #        + approved_at/paid_at na prijelazima (Agent 2).
 # Mount: /api/v2/erp/*
 # ═══════════════════════════════════════════════════════════════════
-from __future__ import annotations
 
 import csv
 import hashlib

routers/notif_router.py

@@ -1,4 +1,5 @@
 #!/usr/bin/env python3
+from __future__ import annotations
 from dotenv import load_dotenv
 load_dotenv('/opt/rinet-gpu/.env.master')
 # auto-added by patch_scrapers_with_dotenv.sh
@@ -16,7 +17,6 @@ load_dotenv('/opt/rinet-gpu/.env.master')
 #          POST  /api/v2/notif/mark-all-read
 #          DELETE /api/v2/notif/{id}
 # ==============================================================================
-from __future__ import annotations
 import os
 
 from typing import Optional, List, Dict, Any

routers/obrasci_router.py

@@ -1,4 +1,5 @@
 #!/usr/bin/env python3
+from __future__ import annotations
 from dotenv import load_dotenv
 load_dotenv('/opt/rinet-gpu/.env.master')
 # auto-added by patch_scrapers_with_dotenv.sh
@@ -24,7 +25,6 @@ Endpointi (montirani na /api/crm):
   POST   /forms/submissions/{id}/reject
   POST   /forms/{code_or_id}/submit    → kompatibilni shortcut: kreiraj+submit u jednom POST
 """
-from __future__ import annotations
 
 import json
 import hashlib

routers/ocr_router.py

@@ -1,4 +1,5 @@
 #!/usr/bin/env python3
+from __future__ import annotations
 from dotenv import load_dotenv
 load_dotenv('/opt/rinet-gpu/.env.master')
 # auto-added by patch_scrapers_with_dotenv.sh
@@ -15,7 +16,6 @@ load_dotenv('/opt/rinet-gpu/.env.master')
 #              degrade gracefully if pytesseract / pdf2image are not
 #              installed (returns ocr_status='ocr_unavailable').
 
-from __future__ import annotations
 
 import os
 import re