fix(pack): handle uv errors

lua/pack.lua

@@ -169,9 +169,12 @@ function M.watch()
 
     local plugins_dir = config_dir .. "/lua/plugins"
 
-    watcher = vim.uv.new_fs_event()
+    local err_msg, err_name
+    watcher, err_msg, err_name = vim.uv.new_fs_event()
     if not watcher then
-        log.error("Failed to create fs_event watcher")
+        log.error(
+            "Failed to create fs_event watcher (%s): %s", err_name, err_msg
+        )
         return
     end
 
@@ -188,12 +191,19 @@ function M.watch()
                 return
             end
 
+            ---@type uv.uv_timer_t?
             local timer = timers[filename]
-            if timer ~= nil then
-                timer:stop()
-            else
-                timer = vim.uv.new_timer()
+            if not timer then
+                timer, err_msg, err_name = vim.uv.new_timer()
+                if not timer then
+                    log.error(
+                        "Failed to create new timer (%s): %s", err_name, err_msg
+                    )
+                    return
+                end
                 timers[filename] = timer
+            else
+                timer:stop()
             end
 
             timer:start(