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/Cutie Pro

@@ -0,0 +1,22 @@
+palette = 0=#000000
+palette = 1=#f56e7f
+palette = 2=#bec975
+palette = 3=#f58669
+palette = 4=#42d9c5
+palette = 5=#d286b7
+palette = 6=#37cb8a
+palette = 7=#d5c3c3
+palette = 8=#88847f
+palette = 9=#e5a1a3
+palette = 10=#e8d6a7
+palette = 11=#f1bb79
+palette = 12=#80c5de
+palette = 13=#b294bb
+palette = 14=#9dccbb
+palette = 15=#ffffff
+background = #181818
+foreground = #d5d0c9
+cursor-color = #efc4cd
+cursor-text = #181818
+selection-background = #363636
+selection-foreground = #d5d0c9