fix(config): cleanup bugs, redundancy, and add agent-friendly auto-reload

- remove broken mini.files mappings (plugin disabled; yazi is used now)
- dedupe tint.nvim spec (drop plugins/theme.lua, keep ui.lua)
- drop dead copilot cmp source + moot Supermaven symbol (Supermaven stays inline)
- remove yaml from biome formatters (biome has no yaml support)
- collapse 3x biome chain to a single biome-check pass
- remove duplicate insert-mode jk mapping
- lazy-load tailwind-tools by filetype
- diagnostics: update_in_insert = false
- untrack .nvimlog, add .gitignore
- auto-reload files changed on disk (autoread + checktime autocmds)

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

lua/plugins/lsp.lua

@@ -59,6 +59,7 @@ return {
   {
     "luckasRanarison/tailwind-tools.nvim",
     name = "tailwind-tools",
+    ft = { "html", "css", "scss", "javascriptreact", "typescriptreact", "vue", "svelte", "astro" },
     build = ":UpdateRemotePlugins",
     dependencies = {
       "nvim-treesitter/nvim-treesitter",

lua/plugins/theme.lua

@@ -1,17 +0,0 @@
-return {
-  {
-    "levouh/tint.nvim",
-    config = function()
-      require("tint").setup {
-        tint = -10,
-        tint_background_colors = true,
-
-        window_ignore_function = function(winid)
-          local bufid = vim.api.nvim_win_get_buf(winid)
-          local buftype = vim.api.nvim_get_option_value("buftype", { buf = bufid })
-          return buftype == "nofile"
-        end,
-      }
-    end,
-  },
-}