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

@@ -0,0 +1,22 @@
+palette = 0=#2d2a2e
+palette = 1=#ff6188
+palette = 2=#a9dc76
+palette = 3=#ffd866
+palette = 4=#fc9867
+palette = 5=#ab9df2
+palette = 6=#78dce8
+palette = 7=#fcfcfa
+palette = 8=#727072
+palette = 9=#ff6188
+palette = 10=#a9dc76
+palette = 11=#ffd866
+palette = 12=#fc9867
+palette = 13=#ab9df2
+palette = 14=#78dce8
+palette = 15=#fcfcfa
+background = #2d2a2e
+foreground = #fcfcfa
+cursor-color = #c1c0c0
+cursor-text = #8e8d8d
+selection-background = #5b595c
+selection-foreground = #fcfcfa