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/Bluloco Light

@@ -0,0 +1,22 @@
+palette = 0=#373a41
+palette = 1=#d52753
+palette = 2=#23974a
+palette = 3=#df631c
+palette = 4=#275fe4
+palette = 5=#823ff1
+palette = 6=#27618d
+palette = 7=#babbc2
+palette = 8=#676a77
+palette = 9=#ff6480
+palette = 10=#3cbc66
+palette = 11=#c5a332
+palette = 12=#0099e1
+palette = 13=#ce33c0
+palette = 14=#6d93bb
+palette = 15=#d3d3d3
+background = #f9f9f9
+foreground = #373a41
+cursor-color = #f32759
+cursor-text = #ffffff
+selection-background = #daf0ff
+selection-foreground = #373a41