fix: add missing enable_rag and warp_proxy_section to LuCI settings form

The custom renderAdvancedSettings panel was never connected to the UI.
Added enable_rag checkbox to AI tab and warp_proxy_section dropdown
to Advanced tab in the standard LuCI settings.js form.

Also fixed warp_proxy_section load function to use map data instead of
uci.sections() which returns an array (for...in iterated indices).

Added Russian translations for new strings.

luci-app-tachyon/htdocs/luci-static/resources/view/tachyon/settings.js

@@ -1596,6 +1596,41 @@ function createSettingsContent(section, capabilities) {
   o.default = "0";
   o.rmempty = false;
 
+  // WARP Generator Proxy Section
+  o = section.taboption(
+    "advanced",
+    form.ListValue,
+    "warp_proxy_section",
+    _("WARP Generator Proxy Section"),
+    _(
+      "Section used for Cloudflare WARP API registration. If your ISP blocks Cloudflare API on WAN, select a proxy section that routes through a tunnel (e.g. WireGuard, VPN). Leave empty to use the default service mixed proxy.",
+    ),
+  );
+  o.value("", _("Default (service mixed proxy)"));
+  o.load = function (section_id) {
+    const sections = this.map?.data?.state?.values?.[UCI_PACKAGE] ?? {};
+    this.keylist = [""];
+    this.vallist = ["", _("Default (service mixed proxy)")];
+    for (const secName in sections) {
+      const sec = sections[secName];
+      if (sec[".type"] === "section" && sec.enabled !== "0") {
+        this.value(secName, sec.label || secName);
+      }
+    }
+    return uci.get(UCI_PACKAGE, "settings", "warp_proxy_section") || "";
+  };
+  o.write = function (section_id, value) {
+    const normalized = value ? `${value}`.trim() : "";
+    if (normalized) {
+      uci.set(UCI_PACKAGE, section_id, "warp_proxy_section", normalized);
+    } else {
+      uci.unset(UCI_PACKAGE, section_id, "warp_proxy_section");
+    }
+  };
+  o.remove = function (section_id) {
+    uci.unset(UCI_PACKAGE, section_id, "warp_proxy_section");
+  };
+
   const resetOpt = section.taboption(
     "advanced",
     form.DummyValue,
@@ -1729,6 +1764,19 @@ function createSettingsContent(section, capabilities) {
   o.rmempty = true;
   o.placeholder = "http://192.168.1.100:11434/v1/chat/completions";
 
+  // RAG (Knowledge Base Retrieval)
+  o = section.taboption(
+    "ai",
+    form.Flag,
+    "enable_rag",
+    _("Enable RAG (Knowledge Base Retrieval)"),
+    _(
+      "Pre-built index of Tachyon documentation chunks. When enabled, AI Doctor searches relevant docs before generating a diagnosis.",
+    ),
+  );
+  o.default = "0";
+  o.rmempty = false;
+
   // Watchdog runtime status & controls
   const wdStatusOpt = section.taboption(
     "ai",

luci-app-tachyon/po/ru/tachyon.po

@@ -4367,3 +4367,18 @@ msgstr "Загрузка и применение наборов правил и
 msgid "Lists and rule sets successfully updated!"
 msgstr "Списки и наборы правил успешно обновлены!"
 
+msgid "Enable RAG (Knowledge Base Retrieval)"
+msgstr "Включить RAG (поиск по базе знаний)"
+
+msgid "Pre-built index of Tachyon documentation chunks. When enabled, AI Doctor searches relevant docs before generating a diagnosis."
+msgstr "Предварительно собранный индекс фрагментов документации Tachyon. При включении AI Doctor ищет релевантные документы перед постановкой диагноза."
+
+msgid "WARP Generator Proxy Section"
+msgstr "Секция прокси для генератора WARP"
+
+msgid "Section used for Cloudflare WARP API registration. If your ISP blocks Cloudflare API on WAN, select a proxy section that routes through a tunnel (e.g. WireGuard, VPN). Leave empty to use the default service mixed proxy."
+msgstr "Секция для регистрации Cloudflare WARP API. Если провайдер блокирует Cloudflare API по WAN, выберите секцию с туннелем (WireGuard, VPN и т.д.). Оставьте пустым для использования смешанного прокси по умолчанию."
+
+msgid "Default (service mixed proxy)"
+msgstr "По умолчанию (смешанный прокси)"
+