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/Fideloper

@@ -0,0 +1,22 @@
+palette = 0=#292f33
+palette = 1=#cb1e2d
+palette = 2=#edb8ac
+palette = 3=#b7ab9b
+palette = 4=#2e78c2
+palette = 5=#c0236f
+palette = 6=#309186
+palette = 7=#eae3ce
+palette = 8=#496068
+palette = 9=#d4605a
+palette = 10=#d4605a
+palette = 11=#a86671
+palette = 12=#7c85c4
+palette = 13=#5c5db2
+palette = 14=#819090
+palette = 15=#fcf4df
+background = #292f33
+foreground = #dbdae0
+cursor-color = #d4605a
+cursor-text = #fefff2
+selection-background = #efb8ac
+selection-foreground = #8c8c8c