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/Blazer

@@ -0,0 +1,22 @@
+palette = 0=#000000
+palette = 1=#b87a7a
+palette = 2=#7ab87a
+palette = 3=#b8b87a
+palette = 4=#7a7ab8
+palette = 5=#b87ab8
+palette = 6=#7ab8b8
+palette = 7=#d9d9d9
+palette = 8=#4c4c4c
+palette = 9=#dbbdbd
+palette = 10=#bddbbd
+palette = 11=#dbdbbd
+palette = 12=#bdbddb
+palette = 13=#dbbddb
+palette = 14=#bddbdb
+palette = 15=#ffffff
+background = #0d1926
+foreground = #d9e6f2
+cursor-color = #d9e6f2
+cursor-text = #0d1926
+selection-background = #c1ddff
+selection-foreground = #000000