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/Phala Green Dark

@@ -0,0 +1,22 @@
+palette = 0=#000000
+palette = 1=#ab1500
+palette = 2=#00b100
+palette = 3=#a9a700
+palette = 4=#0223c0
+palette = 5=#c22ec0
+palette = 6=#00b4c0
+palette = 7=#cbcbcb
+palette = 8=#797979
+palette = 9=#ed2200
+palette = 10=#00db00
+palette = 11=#eae700
+palette = 12=#0433ff
+palette = 13=#ed3aea
+palette = 14=#00e8ea
+palette = 15=#eaeaea
+background = #000000
+foreground = #c1fc03
+cursor-color = #c1fc03
+cursor-text = #ff271d
+selection-background = #014804
+selection-foreground = #ffffff