refactor(cli): add commands/, prompt.rs, parse.rs scaffold (no-op)

crates/relicario-cli/src/main.rs

@@ -2,9 +2,12 @@
 //!
 //! See module docs for the unlock flow and vault layout.
 
+mod commands;
 mod device;
 mod gitea;
 mod helpers;
+mod parse;
+mod prompt;
 mod session;
 
 use std::path::PathBuf;