0.6.0: in-game tutorial in Create's Ponder style

- Ponder for KubeJS 2.4.0 (client) + client_scripts/createrp_ponder.js: six scenes (terminal, selling,
  buying, money and bank, land and ore, jobs) on «Довідник громадянина», frogport and CC computers,
  plus a «Держава Create RP» tag in the Ponder index
- startup_scripts/createrp_items.js registers kubejs:citizen_guide (identical in the server pack)

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

mods/ponder.pw.toml

@@ -0,0 +1,13 @@
+name = "Ponder for KubeJS"
+filename = "ponderjs-neoforge-1.21.1-2.4.0.jar"
+side = "client"
+
+[download]
+url = "https://cdn.modrinth.com/data/5A34Stj8/versions/BqhDf7W8/ponderjs-neoforge-1.21.1-2.4.0.jar"
+hash-format = "sha512"
+hash = "6390c4bf631561c29a76b8b29a496d4b984bf847572940b28e551f2c2e3da4a8fb04b6a82cf98a7935792a7d3485cdc45c76f2bdf7f93799210262ba5f184955"
+
+[update]
+[update.modrinth]
+mod-id = "5A34Stj8"
+version = "BqhDf7W8"