feat(source2): lock dark mode, sans-serif typography, and all recent updates

backend/models/SchemasTelemetry.js

@@ -14,7 +14,7 @@ const baseOptions = {
 // ─── Helper: build a consistent DPI property schema ───────────────────────────
 function dpiPropertySchema(fieldName) {
   const fields = {
-    timestamp:  { type: Date,   required: true, index: true, expires: '7d' },
+    timestamp:  { type: Date,   required: true, index: true, expires: '30d' },
     agent_uuid: { type: String, index: true },
     site_uuid:  { type: String, index: true },
     download:   Number,
@@ -35,7 +35,7 @@ const HttpUserAgentStatSchema = dpiPropertySchema('user_agent');
 
 // ─── BitTorrent Info Hashes (bittorrent_info_hash) ────────────────────────────
 const BittorrentHashStatSchema = new mongoose.Schema({
-  timestamp:  { type: Date,   required: true, index: true, expires: '7d' },
+  timestamp:  { type: Date,   required: true, index: true, expires: '30d' },
   agent_uuid: { type: String, index: true },
   site_uuid:  { type: String, index: true },
   info_hash:  { type: String, required: true },