fix: initialize voice encryption libs before first connection

- await sodium.ready + nacl preload (same as original jukebox)
- Add generateDependencyReport() for debugging
- Add type declarations for libsodium-wrappers and tweetnacl

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

server/src/types/modules.d.ts

@@ -0,0 +1,2 @@
+declare module "libsodium-wrappers";
+declare module "tweetnacl";