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/Brogrammer

@@ -0,0 +1,22 @@
+palette = 0=#1f1f1f
+palette = 1=#f81118
+palette = 2=#2dc55e
+palette = 3=#ecba0f
+palette = 4=#2a84d2
+palette = 5=#4e5ab7
+palette = 6=#1081d6
+palette = 7=#d6dbe5
+palette = 8=#d6dbe5
+palette = 9=#de352e
+palette = 10=#1dd361
+palette = 11=#f3bd09
+palette = 12=#1081d6
+palette = 13=#5350b9
+palette = 14=#0f7ddb
+palette = 15=#ffffff
+background = #131313
+foreground = #d6dbe5
+cursor-color = #b9b9b9
+cursor-text = #101010
+selection-background = #1f1f1f
+selection-foreground = #d6dbe5