feat: add the community-funded Homarr assistant provider (#6563)

* Add Homarr provider proxy foundation

* Complete Homarr provider integration

* Harden Homarr provider integration

* Address Homarr provider review feedback

* Address CodeRabbit provider feedback

* Localize provider errors

* Handle provider activity load failures

* docs: improve workshop and homepage

* Harden Homarr provider limits

* fix: harden the Homarr provider

* fix: address provider review feedback

* fix: clarify provider request accounting

* feat: complete the Homarr provider endpoint

* fix: terminate invalid provider streams

packages/api/src/test/assistant-providers.spec.ts

@@ -25,7 +25,9 @@ describe("assistant provider presets", () => {
 
   test("requires credentials for hosted providers but not local or custom endpoints", () => {
     for (const provider of assistantProviderIds) {
-      expect(assistantProviderRequiresApiKey(provider)).toBe(assistantProviderPresets[provider].category === "hosted");
+      expect(assistantProviderRequiresApiKey(provider)).toBe(
+        assistantProviderPresets[provider].category === "hosted" && provider !== "homarr",
+      );
     }
   });