fix: debounce error (#2337)

lua/avante/suggestion.lua

@@ -24,7 +24,7 @@ local SUGGESTION_NS = api.nvim_create_namespace("avante_suggestion")
 ---@field augroup integer
 ---@field ignore_patterns table
 ---@field negate_patterns table
----@field _timer? integer
+---@field _timer? uv.uv_timer_t | uv_timer_t
 ---@field _contexts table
 ---@field is_on_throttle boolean
 local Suggestion = {}
@@ -348,7 +348,10 @@ end
 
 function Suggestion:stop_timer()
   if self._timer then
-    pcall(function() fn.timer_stop(self._timer) end)
+    pcall(function()
+      self._timer:stop()
+      self._timer:close()
+    end)
     self._timer = nil
   end
 end

lua/avante/utils/init.lua

@@ -674,19 +674,26 @@ function M.trim_all_line_numbers(content)
 end
 
 function M.debounce(func, delay)
-  local timer_id = nil
+  local timer = nil
 
   return function(...)
     local args = { ... }
 
-    if timer_id then pcall(function() fn.timer_stop(timer_id) end) end
+    if timer then
+      timer:stop()
+      timer:close()
+    end
 
-    timer_id = fn.timer_start(delay, function()
+    timer = vim.loop.new_timer()
-      func(unpack(args))
+    if not timer then return end
-      timer_id = nil
+
+    timer:start(delay, 0, function()
+      vim.schedule(function() func(unpack(args)) end)
+      timer:close()
+      timer = nil
     end)
 
-    return timer_id
+    return timer
   end
 end