- axon.rs: replace stub AxonHandler with live NeuronRuntime dispatch;
tool calls now route through Engram VM when modules are loaded
- state.rs: load .el modules from NEURON_LANG_DIR (default ~/.neuron/lang);
falls back to empty dir gracefully when not present
- Cargo.toml: add engram-core dependency for EngramDb
will.anderson
78fc3a909a