updated secrets baseline config

lua/plugins/zig.lua

@@ -1,5 +1,14 @@
 -- Zig language support via the official Codeberg-hosted plugin.
 -- Loads only on zig files.
+--
+-- The rest of the Zig toolchain is wired in alongside the other languages so
+-- it benefits from the same lazy-loading and config:
+--   * LSP (zls) ........... lspconfig.lua  (servers.zls) + mason.lua
+--   * Treesitter parser ... treesitter.lua ("zig")
+--   * Tests in-buffer ..... neotest.lua    (neotest-zig adapter, ft=zig)
+--   * Debug (codelldb) .... dap.lua        (dap.configurations.zig) + mason
+--   * Run/build tasks ..... overseer/template/user/zig_{build,run,test}.lua
+--   * Quick keymaps ....... keymaps.lua    (<leader>cz*) + which-key group
 
 return {
   {