T15: buang voter basi di scan + hapus bobot suara & UI basi di web

get_voters.py kini menyimpan hanya pemilih segar (last_vote tak
diketahui atau > VEX_STALE_DAYS dibuang di normalize, V13). Web
menampilkan kolom RANK/AKUN/STAKE/VOTE TERAKHIR, tanpa BOBOT SUARA,
stat VOTE BASI, penanda/ filter ?stale=1 (V15). voters.db dipangkas
336 → 42. Oracle diperbarui dan lolos.

get_voters.py

@@ -1,17 +1,18 @@
 """Scan tabel voters Vexanium, simpan pemilih BP databisnisid + bobot suara ke SQLite.
 
-Berjalan imparsial (repeatable) dan siap dijadwalkan (cron). Memakai requests.
+Hanya pemilih segar (revote ≤ VEX_STALE_DAYS lalu) yang disimpan — vote basi
+dibuang. Berjalan imparsial (repeatable) dan siap dijadwalkan (cron).
 """
 
 import math
 import sqlite3
 import sys
 import time
-from datetime import datetime, timedelta
+from datetime import datetime, timedelta, timezone
 
 import requests
 
-from config import API_NODE, DB_PATH, MIN_STAKED_VEX, TARGET_BP
+from config import API_NODE, DB_PATH, MIN_STAKED_VEX, TARGET_BP, VEX_STALE_DAYS
 
 # Kontrak & scope sistem Vexanium = vexcore (BUKAN vexio sesuai konvensi EOS)
 CODE = 'vexcore'
@@ -104,8 +105,23 @@ def scan_voters():
     return rows_all
 
 
-def normalize(row):
-    """V4/V5/V6: saring ke baris yang relevan, bidang dinormalisasi."""
+def _is_stale(last_vote, now):
+    """V13: apakah revote terakhir sudah lewat ambang basi (VEX_STALE_DAYS)."""
+    try:
+        vote_at = datetime.fromisoformat(last_vote)
+    except (TypeError, ValueError):
+        return True
+    return (now - vote_at) > timedelta(days=VEX_STALE_DAYS)
+
+
+def normalize(row, now=None):
+    """V4/V5/V6/V13: saring ke baris yang relevan, bidang dinormalisasi.
+
+    V13: pemilih dengan last_vote tak diketahui atau basi dibuang di sini —
+    hanya pemilih segar yang berakhir di DB.
+    """
+    if now is None:
+        now = datetime.now(timezone.utc).replace(tzinfo=None)
     owner = row['owner']
     if owner == ZERO_OWNER:  # V4: lewati sentinel nama akun 0
         return None
@@ -114,11 +130,14 @@ def normalize(row):
     staked_vex = float(row.get('staked', 0)) / 10000  # V8/V9: bisa string, ÷10000
     if staked_vex < MIN_STAKED_VEX:
         return None
+    last_vote = derive_last_vote(row.get('last_vote_weight', ''), staked_vex)
+    if last_vote is None or _is_stale(last_vote, now):  # V13: basi ⊥ disimpan
+        return None
     return {
         'owner': owner,
         'weight': row.get('last_vote_weight', ''),  # V6: bobot verbatim (string)
         'staked': staked_vex,
-        'last_vote': derive_last_vote(row.get('last_vote_weight', ''), staked_vex),
+        'last_vote': last_vote,
     }
 
 
@@ -171,9 +190,10 @@ def main():
     """Titik masuk CLI."""
     print(f'Mulai memindai voters untuk BP: "{TARGET_BP}"...')
     raw = scan_voters()
+    now = datetime.now(timezone.utc).replace(tzinfo=None)
     filtered = []
     for row in raw:
-        item = normalize(row)
+        item = normalize(row, now=now)  # satu stempel waktu untuk seluruh skan
         if item is not None:
             filtered.append(item)
     scanned_at = persist(filtered)