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/Breadog

@@ -0,0 +1,22 @@
+palette = 0=#362c24
+palette = 1=#b10b00
+palette = 2=#007232
+palette = 3=#8b4c00
+palette = 4=#005cb4
+palette = 5=#9b0097
+palette = 6=#006a78
+palette = 7=#baa99d
+palette = 8=#514337
+palette = 9=#de1100
+palette = 10=#008f40
+palette = 11=#ae6000
+palette = 12=#0074e1
+palette = 13=#c300bd
+palette = 14=#008697
+palette = 15=#eae1da
+background = #f1ebe6
+foreground = #362c24
+cursor-color = #362c24
+cursor-text = #f1ebe6
+selection-background = #362c24
+selection-foreground = #f1ebe6