chore: July 2025 content build (#15449)

* chore: July 2025 content build

* chore: add release dates to armoire

* fix(sprites): correct Cryptid typo

* fix(grammar): missing comma

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Co-authored-by: Kalista Payne <sabrecat@gmail.com>

website/common/script/content/appearance/backgrounds.js

@@ -659,6 +659,9 @@ const backgrounds = {
   backgrounds062025: {
     summer_seashore: { },
   },
+  backgrounds072025: {
+    sirens_lair: { },
+  },
   eventBackgrounds: {
     birthday_bash: {
       price: 0,