OPEN-ISP v0.5 (pickle-lime) — rilis open-source perdana

Aplikasi billing & manajemen ISP (fiber optic) — PWA pelanggan, portal teknisi & kolektor,
admin panel lengkap, multi-vendor OLT, RADIUS, WhatsApp/Telegram, pembayaran QRIS.

Kredit & lisensi (ISC):
- Base kode & repo: alijayanet/billing-rtrw oleh Alijaya Net — terima kasih banyak
  atas base kode dan repo yang bermanfaat.
- Add-on: GoWA, LibreSpeed/OpenSpeedTest, Uptime Kuma, notification-forwarder.
- Dikembangkan menjadi OPEN-ISP oleh oxpoe — https://github.com/oxpoe/open-isp

services/waLidStore.js

@@ -0,0 +1,59 @@
+const fs = require('fs');
+const path = require('path');
+
+/**
+ * Menyimpan pemetaan JID (@lid atau @s.whatsapp.net) → tag GenieACS yang dipakai API.
+ * Diperlukan karena pengirim sering tampil sebagai …@lid, bukan nomor.
+ */
+class WaLidStore {
+  constructor(filePath) {
+    this.filePath = filePath;
+    this.map = Object.create(null);
+    this._load();
+  }
+
+  _load() {
+    try {
+      if (fs.existsSync(this.filePath)) {
+        const raw = JSON.parse(fs.readFileSync(this.filePath, 'utf8'));
+        this.map = raw && typeof raw === 'object' ? raw : Object.create(null);
+      }
+    } catch (e) {
+      this.map = Object.create(null);
+    }
+  }
+
+  _save() {
+    const dir = path.dirname(this.filePath);
+    if (!fs.existsSync(dir)) {
+      fs.mkdirSync(dir, { recursive: true });
+    }
+    fs.writeFileSync(this.filePath, JSON.stringify(this.map, null, 2), 'utf8');
+  }
+
+  get(jid) {
+    if (!jid || typeof jid !== 'string') return null;
+    const v = this.map[jid.toLowerCase()];
+    return v != null ? String(v) : null;
+  }
+
+  set(jid, canonicalTag) {
+    if (!jid || canonicalTag == null || canonicalTag === '') return;
+    this.map[jid.toLowerCase()] = String(canonicalTag);
+    this._save();
+  }
+
+  /** Cari JID berdasarkan tag (reverse lookup) */
+  getByTag(canonicalTag) {
+    if (!canonicalTag) return null;
+    const target = String(canonicalTag).toLowerCase();
+    for (const [jid, tag] of Object.entries(this.map)) {
+      if (String(tag).toLowerCase() === target) {
+        return jid;
+      }
+    }
+    return null;
+  }
+}
+
+module.exports = { WaLidStore };