feat(resources): bundle color themes and compiled xterm-ghostty terminfo

Makes the resources directory self-contained like Ghostty's share/ghostty:
- themes/: the 463 iTerm2-Color-Schemes themes Ghostty 1.3.1 ships
  (release 20260216-151611-fc73ce3), with the upstream MIT license.
- terminfo/: xterm-ghostty compiled with `tic -x` from the terminfo
  source generated by ghostty-termio; `infocmp -x` is identical to the
  installed Ghostty's entry.

The generator script and resources-dir discovery changes follow in a
separate commit.

Test Plan:
- TERMINFO=resources/terminfo infocmp -x xterm-ghostty

resources/themes/Liquid Carbon Transparent

@@ -0,0 +1,22 @@
+palette = 0=#000000
+palette = 1=#ff3030
+palette = 2=#559a70
+palette = 3=#ccac00
+palette = 4=#0099cc
+palette = 5=#cc69c8
+palette = 6=#7ac4cc
+palette = 7=#bccccc
+palette = 8=#404040
+palette = 9=#ff3030
+palette = 10=#559a70
+palette = 11=#ccac00
+palette = 12=#0099cc
+palette = 13=#cc69c8
+palette = 14=#7ac4cc
+palette = 15=#bccccc
+background = #000000
+foreground = #afc2c2
+cursor-color = #ffffff
+cursor-text = #000000
+selection-background = #7dbeff
+selection-foreground = #000000