chore: clean up dotfiles and add gitignore whitelist

Switch to whitelist-based .gitignore to only track essential configs:
nvim, yazi, kitty, zsh, ideavim, karabiner, tmux, scripts, starship.
Remove history, compiled files, and plugin dirs from tracking.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

yazi/yazi.toml

@@ -1,23 +1,17 @@
-# Temporarily disable all config for testing
-max_width=3000  
-max_height=3000  
-
 [opener]
 play = [
     { run = 'open -a IINA "$@"', orphan = true, for = "unix", desc='IINA'}
 ]
 
 [image]
-renderer = "kitty"
+renderer = "auto"
 
 [preview]
-max_width = 1000
-max_height = 1000 
-# [mgr]
-# ratio = [2, 6, 5]  # left, center, right pane width ratios  
+max_width  = 2000
+max_height = 2000
 
 [plugin]
 prepend_previewers = [
-  { name = "*.md", run = "glow" },
+  { name = "*.md",  run = "glow" },
+  { mime = "image/*", run = "zoom" },
 ]
-