feat: complete Voltex Engine + Survivor game

11 crates, 13 examples (including survivor_game), 255 tests
Phase 1-8 fully implemented + playable survival game demo

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

.claude/settings.local.json

@@ -46,7 +46,8 @@
       "Bash(mkdir -p C:/Users/SSAFY/Desktop/projects/voltex/crates/voltex_script/lua)",
       "Read(//c/tmp/**)",
       "Bash(tar xzf:*)",
-      "Bash(cp lua-5.4.7/src/*.c lua-5.4.7/src/*.h C:/Users/SSAFY/Desktop/projects/voltex/crates/voltex_script/lua/)"
+      "Bash(cp lua-5.4.7/src/*.c lua-5.4.7/src/*.h C:/Users/SSAFY/Desktop/projects/voltex/crates/voltex_script/lua/)",
+      "Bash(cd:*)"
     ]
   }
 }