fix(nvim): disable mcphub vars for codecompanion v19

mcphub.nvim currently crashes on startup with CodeCompanion v19 because CodeCompanion renamed chat variables to editor_context. The upstream reports are ravitemer/mcphub.nvim#275 and ravitemer/mcphub.nvim#278.

PR ravitemer/mcphub.nvim#276 was closed in favor of #279. #279 is still open and not merged, so use the upstream-recommended temporary workaround, make_vars = false.

This keeps MCP tools and slash commands enabled, but disables MCP resources as CodeCompanion # context until the upstream v19 compatibility patch lands.

Author: oyoshot

dot_config/nvim/lua/plugins/codecompanion.lua

@@ -114,7 +114,7 @@ return {
 				callback = "mcphub.extensions.codecompanion",
 				opts = {
 					make_tools = true,
-					make_vars = true,
+					make_vars = false, -- TODO: re-enable after ravitemer/mcphub.nvim#279 lands
 					make_slash_commands = true,
 					show_result_in_chat = true,
 				},