feat: convert hypr config to Lua and add Chester host

- Add Lua equivalents for hyprland, autostart, keybindings, programs, windowrule
- Add per-host Lua configs (Chester, Rutherford, example) with hostname detection
- Rename old host 'William' to 'Chester'; fix 2x scaling on the 2880x1800 panel
- Update .gitignore to track *.lua host files instead of example-host.conf

hypr/hosts/Chester.lua

@@ -0,0 +1,13 @@
+-- Host-specific overrides: Chester (laptop, 2880x1800 internal display)
+-- Converted from hosts/William.conf (which the .conf path used via the
+-- host.conf symlink) — keeps the internal panel at 2x scaling.
+
+-- Laptop internal display — explicit & stable
+hl.monitor({
+    output   = "eDP-1",
+    mode     = "2880x1800@60",
+    position = "0x0",
+    scale    = 2,
+})
+
+return {}