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/Solarized Dark Patched

@@ -0,0 +1,22 @@
+palette = 0=#002831
+palette = 1=#d11c24
+palette = 2=#738a05
+palette = 3=#a57706
+palette = 4=#2176c7
+palette = 5=#c61c6f
+palette = 6=#259286
+palette = 7=#eae3cb
+palette = 8=#475b62
+palette = 9=#bd3613
+palette = 10=#475b62
+palette = 11=#536870
+palette = 12=#708284
+palette = 13=#5956ba
+palette = 14=#819090
+palette = 15=#fcf4dc
+background = #001e27
+foreground = #708284
+cursor-color = #708284
+cursor-text = #002831
+selection-background = #002831
+selection-foreground = #819090