followup: use function addr as health check id (#217)

* chore(doc): auto generate docs

* followup: use function addr as id for custom health checks

---------

Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>

Author: xiaoshihou514

doc/guard.nvim.txt

@@ -1,4 +1,4 @@
-*guard.nvim.txt*           For NVIM v0.8.0           Last change: 2025 June 10
+*guard.nvim.txt*           For NVIM v0.8.0           Last change: 2025 June 11
 
 ==============================================================================
 Table of Contents                               *guard.nvim-table-of-contents*

lua/guard/health.lua

@@ -18,22 +18,25 @@ end
 
 local function executable_check()
   local checked = {}
+  local custom_checked = {}
   for ft, item in pairs(filetype) do
     if ft:find(',') then
       goto continue
     end
 
     -- run executable or custom healt check
     for _, conf in ipairs(item.formatter or {}) do
-      if conf.health then
+      if type(conf.health) == 'function' and not vim.tbl_contains(custom_checked, conf.health) then
         conf.health()
+        table.insert(custom_checked, conf.health)
       else
         check_cmd(conf, checked)
       end
     end
     for _, conf in ipairs(item.linter or {}) do
-      if conf.health then
+      if type(conf.health) == 'function' and not vim.tbl_contains(custom_checked, conf.health) then
         conf.health()
+        table.insert(custom_checked, conf.health)
       else
         check_cmd(conf, checked)
       end