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/Monokai Pro Light

@@ -0,0 +1,22 @@
+palette = 0=#faf4f2
+palette = 1=#e14775
+palette = 2=#269d69
+palette = 3=#cc7a0a
+palette = 4=#e16032
+palette = 5=#7058be
+palette = 6=#1c8ca8
+palette = 7=#29242a
+palette = 8=#a59fa0
+palette = 9=#e14775
+palette = 10=#269d69
+palette = 11=#cc7a0a
+palette = 12=#e16032
+palette = 13=#7058be
+palette = 14=#1c8ca8
+palette = 15=#29242a
+background = #faf4f2
+foreground = #29242a
+cursor-color = #706b6e
+cursor-text = #a39ea1
+selection-background = #bfb9ba
+selection-foreground = #29242a