feat: add support for voyage-3-large and voyage-code-3 embedding models (#2955)

* feat: add support for voyage-3-large and voyage-code-3 embedding models

- Add voyage-3-large and voyage-code-3 to VoyageAiOptions dropdown
- Update getMaxEmbeddingLength to support 32k context for new models
- Update .env.example with new model options

* unset env example

---------

Co-authored-by: timothycarambat <rambat1010@gmail.com>

frontend/src/components/EmbeddingSelection/VoyageAiOptions/index.jsx

@@ -38,6 +38,8 @@ export default function VoyageAiOptions({ settings }) {
                 "voyage-2",
                 "voyage-3",
                 "voyage-3-lite",
+                "voyage-3-large",
+                "voyage-code-3",
               ].map((model) => {
                 return (
                   <option key={model} value={model}>

server/utils/EmbeddingEngines/voyageAi/index.js

@@ -24,6 +24,8 @@ class VoyageAiEmbedder {
       case "voyage-multilingual-2":
       case "voyage-3":
       case "voyage-3-lite":
+      case "voyage-3-large":
+      case "voyage-code-3":
         return 32_000;
       case "voyage-large-2-instruct":
       case "voyage-law-2":