refactor: add mcp hub

lua/plugins/mcphub.lua

@@ -0,0 +1,22 @@
+return {
+    {
+        "ravitemer/mcphub.nvim",
+        enabled = false,
+        dependencies = {
+            "nvim-lua/plenary.nvim",
+        },
+        cmd = "MCPHub",
+        build = "bundled_build.lua", -- Bundles mcp-hub locally
+        config = function()
+            require("mcphub").setup({
+                use_bundled_binary = true, -- Use local binary
+                -- ... rest of config as shown above
+                extensions = {
+                    avante = {
+                        make_slash_commands = true, -- make /slash commands from MCP server prompts
+                    },
+                },
+            })
+        end,
+    },
+}