patch-prolog-repl 0.3.0

plgr — interactive REPL for patch-prolog.

The engine compiles whole programs to native binaries; this REPL delivers an interactive feel by driving the compiler, never by interpreting clauses at runtime (LESSONS_FROM_V1 rule 3). Clause and :load edits recompile the session buffer to a temp binary; ?- queries re-invoke the current binary via --query. The compile step shells out to plgc (engine.rs); editing uses the vim-line crate (input.rs).