feat(grokbuild): add first-class Grok Build support (#5453)

* feat(grokbuild): add backend integration

* feat(grokbuild): add provider and management UI

* test(grokbuild): cover configuration and integrations

* fix(grokbuild): address backend review feedback

* fix(grokbuild): complete UI review feedback

* feat(grokbuild): add CLI lifecycle management

* fix(grokbuild): align provider icon fallback

* test(grokbuild): cover provider icon persistence

tests/msw/handlers.ts

@@ -337,6 +337,7 @@ export const handlers = [
       claude: false,
       codex: false,
       gemini: false,
+      grokbuild: false,
     }),
   ),
 

tests/msw/state.ts

@@ -69,6 +69,7 @@ const createDefaultProviders = (): ProvidersByApp => ({
       createdAt: Date.now(),
     },
   },
+  grokbuild: {},
   opencode: {},
   openclaw: {},
   hermes: {},
@@ -79,6 +80,7 @@ const createDefaultCurrent = (): CurrentProviderState => ({
   "claude-desktop": "",
   codex: "codex-1",
   gemini: "gemini-1",
+  grokbuild: "",
   opencode: "",
   openclaw: "",
   hermes: "",
@@ -191,6 +193,7 @@ let mcpConfigs: McpConfigState = {
     },
   },
   gemini: {},
+  grokbuild: {},
   opencode: {},
   openclaw: {},
   hermes: {},
@@ -259,6 +262,7 @@ export const resetProviderState = () => {
       },
     },
     gemini: {},
+    grokbuild: {},
     opencode: {},
     openclaw: {},
     hermes: {},