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 Classic

@@ -0,0 +1,22 @@
+palette = 0=#272822
+palette = 1=#f92672
+palette = 2=#a6e22e
+palette = 3=#e6db74
+palette = 4=#fd971f
+palette = 5=#ae81ff
+palette = 6=#66d9ef
+palette = 7=#fdfff1
+palette = 8=#6e7066
+palette = 9=#f92672
+palette = 10=#a6e22e
+palette = 11=#e6db74
+palette = 12=#fd971f
+palette = 13=#ae81ff
+palette = 14=#66d9ef
+palette = 15=#fdfff1
+background = #272822
+foreground = #fdfff1
+cursor-color = #c0c1b5
+cursor-text = #8d8e82
+selection-background = #57584f
+selection-foreground = #fdfff1