clog P1: pure core + naive engine + WAL (M0+M1)

.gitignore

@@ -1,3 +1,5 @@
 /target
 target/
-.DS_Store
+.DS_Store
+# clog demo REPL store (created wherever the example is run)
+clog-repl-data/

CLAUDE.md

@@ -0,0 +1,20 @@
+# Working in this repo
+
+This is a fork of BogKit (fold / ese / anny + examples). The main work here is
+**clog**, an orientation engine library being built at `examples/clog/` against
+the spec in `docs/clog-spec-v1.md` and the build design in
+`docs/superpowers/specs/2026-08-15-clog-build-design.md`. Resolved fold
+capability questions live in `docs/fold-answers.md`.
+
+## Standing rules
+
+- Any change to clog's public API or module map must update
+  `examples/clog/README.md` and the relevant rustdoc **in the same change**.
+- Spec invariants (INV-1..13 in `docs/clog-spec-v1.md`) are enforced by named
+  tests; changing behavior a golden test freezes requires a spec edit first.
+- All time comes from the Clock port; never read wall-clock outside it. No
+  HashMap iteration order at any output boundary.
+- Iterate with `--no-default-features` for fast compiles (ese's embedded map is
+  slow to build); run full-feature tests before claiming a milestone done.
+- Do not commit the garden3d observations corpus; only the human-reviewed,
+  pseudonymized sample in `examples/clog/tests/fixtures/` may land in git.