feat(branding): add Lovora SVG logo assets and update LogoContext

Replace AnythingLLM placeholder logos with lovora-light.svg and lovora-dark.svg.
LogoContext now picks the correct variant based on isLightMode(). Also add
.gstack/ to .gitignore.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: codex

.gitignore

@@ -15,3 +15,4 @@ yarn.lock
 frontend/.env
 server/.env.development
 collector/.env.development
+.gstack/

frontend/src/LogoContext.jsx

@@ -1,8 +1,6 @@
 import { createContext, useEffect, useState } from "react";
-import AnythingLLM from "./media/logo/anything-llm.png";
-import AnythingLLMDark from "./media/logo/anything-llm-dark.png";
-import DefaultLoginLogoLight from "./media/illustrations/login-logo.svg";
-import DefaultLoginLogoDark from "./media/illustrations/login-logo-light.svg";
+import LogoLight from "./media/logo/lovora-light.svg";
+import LogoDark from "./media/logo/lovora-dark.svg";
 import System from "./models/system";
 
 export const REFETCH_LOGO_EVENT = "refetch-logo";
@@ -18,23 +16,21 @@ export function LogoProvider({ children }) {
   const [isCustomLogo, setIsCustomLogo] = useState(false);
 
   async function fetchInstanceLogo() {
-    const DefaultLoginLogo = isLightMode()
-      ? DefaultLoginLogoDark
-      : DefaultLoginLogoLight;
+    const defaultLogo = isLightMode() ? LogoLight : LogoDark;
     try {
       const { isCustomLogo, logoURL } = await System.fetchLogo();
       if (logoURL) {
         setLogo(logoURL);
-        setLoginLogo(isCustomLogo ? logoURL : DefaultLoginLogo);
+        setLoginLogo(isCustomLogo ? logoURL : defaultLogo);
         setIsCustomLogo(isCustomLogo);
       } else {
-        isLightMode() ? setLogo(AnythingLLMDark) : setLogo(AnythingLLM);
-        setLoginLogo(DefaultLoginLogo);
+        setLogo(defaultLogo);
+        setLoginLogo(defaultLogo);
         setIsCustomLogo(false);
       }
     } catch (err) {
-      isLightMode() ? setLogo(AnythingLLMDark) : setLogo(AnythingLLM);
-      setLoginLogo(DefaultLoginLogo);
+      setLogo(defaultLogo);
+      setLoginLogo(defaultLogo);
       setIsCustomLogo(false);
       console.error("Failed to fetch logo:", err);
     }