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/Dayfox

@@ -0,0 +1,22 @@
+palette = 0=#352c24
+palette = 1=#a5222f
+palette = 2=#396847
+palette = 3=#ac5402
+palette = 4=#2848a9
+palette = 5=#6e33ce
+palette = 6=#287980
+palette = 7=#bfb6ae
+palette = 8=#534c45
+palette = 9=#b3434e
+palette = 10=#577f63
+palette = 11=#b86e28
+palette = 12=#4863b6
+palette = 13=#8452d5
+palette = 14=#488d93
+palette = 15=#f4ece6
+background = #f6f2ee
+foreground = #3d2b5a
+cursor-color = #3d2b5a
+cursor-text = #f6f2ee
+selection-background = #e7d2be
+selection-foreground = #3d2b5a