Expand runtime event graph service

README.md

@@ -8,8 +8,10 @@ enough to choose good rewrite targets. As we go, we document evidence, keep a cu
 and stand up Rust tooling that can validate artifacts and later host replacement code.
 
 The long-term direction is still a DLL we can inject into the original executable, patching in
-individual functions as we build them out. The current implementation milestone is smaller: a
-minimal PE32 Rust hook that can load into RT3 under Wine without changing behavior.
+individual functions as we build them out. The active implementation milestone is now a headless
+runtime rehost layer that can execute deterministic world work, compare normalized state, and grow
+subsystem breadth without depending on the shell or presentation path. The PE32 hook remains useful
+as capture and integration tooling, but it is no longer the main execution milestone.
 
 ## Project Docs
 
@@ -29,10 +31,17 @@ The first committed exports for the canonical 1.06 executable live in `artifacts
 The Rust workspace is split into focused crates:
 
 - `rrt-model`: shared types for addresses, function-map rows, and control-loop concepts
-- `rrt-cli`: validation and repo-health checks for the reverse-engineering baseline
-- `rrt-hook`: minimal Windows DLL scaffold that currently builds a `dinput8.dll` proxy for
-  low-risk in-process loading experiments under Wine
+- `rrt-runtime`: headless runtime state, stepping, normalized event service, and persistence-facing
+  runtime types
+- `rrt-fixtures`: fixture schemas, loading, normalization, and diff helpers for rehost validation
+- `rrt-cli`: validation, runtime fixture execution, state-diff tools, and repo-health checks
+- `rrt-hook`: minimal Windows DLL scaffold for low-risk in-process loading, capture, and later
+  integration experiments under Wine
 
-For the current runtime smoke test, run `tools/run_hook_smoke_test.sh`. It builds the PE32 proxy,
+For the current headless runtime smoke path, use `cargo run -p rrt-cli -- runtime summarize-fixture
+fixtures/runtime/minimal-world-step-smoke.json` or one of the broader runtime fixtures under
+`fixtures/runtime/`.
+
+For the current hook smoke test, run `tools/run_hook_smoke_test.sh`. It builds the PE32 proxy,
 copies it into the local RT3 install, launches the game briefly under Wine with
 `WINEDLLOVERRIDES=dinput8=n,b`, and expects `rrt_hook_attach.log` to appear.