lua/config/plugins/lang/yaml.lua registers an LspAttach autocmd outside the plugin config callback

[ooloth]

Current state

lua/config/plugins/lang/yaml.lua calls vim.api.nvim_create_autocmd('LspAttach', ...) at the top level of the file, before the return block. This call runs when the lang file is evaluated by require_all_files_in_config_directory — outside any plugin config callback — so the autocmd is registered regardless of whether associated plugins have loaded. The same issue is tracked for nvim-dap-ui.lua (#54) and nvim-lspconfig.lua (#55); yaml.lua has the same pattern unaddressed.

Ideal state

• The LspAttach autocmd is registered inside the config function of the relevant plugin spec in yaml.lua
• The top level of yaml.lua contains only a return table of plugin specs, with no imperative calls before the return
• The autocmd still fires on LSP attach for yaml files

Starting points

• lua/config/plugins/lang/yaml.lua — the LspAttach autocmd at the top level

QA plan

1. Open lua/config/plugins/lang/yaml.lua — expect no imperative calls before the return statement
2. Run nvim --headless -c "qall" — expect exit 0 with no Lua errors
3. Open a .yaml file in Neovim — expect LSP attach behavior to work as before (keymaps and formatting on save)

Done when

lua/config/plugins/lang/yaml.lua has no imperative calls outside the return block.