fix(ui): advertise get_me as an app via _meta.ui.visibility

The get_me tool wires a UI resource via _meta.ui.resourceUri but was missing the visibility array. MCP clients that key off visibility to decide whether to render a tool as an app (e.g. VS Code's MCP Apps renderer) silently skipped get_me as a result.

Add visibility: ["model", "app"] to match the other UI-enabled tools (issue_write, create_pull_request).

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Author: SamMorrowDrums

pkg/github/__toolsnaps__/get_me.snap

@@ -1,7 +1,11 @@
 {
   "_meta": {
     "ui": {
-      "resourceUri": "ui://github-mcp-server/get-me"
+      "resourceUri": "ui://github-mcp-server/get-me",
+      "visibility": [
+        "model",
+        "app"
+      ]
     }
   },
   "annotations": {

pkg/github/context_tools.go

@@ -58,6 +58,7 @@ func GetMe(t translations.TranslationHelperFunc) inventory.ServerTool {
 			Meta: mcp.Meta{
 				"ui": map[string]any{
 					"resourceUri": GetMeUIResourceURI,
+					"visibility":  []string{"model", "app"},
 				},
 			},
 		},