Each physical link belongs once to the block owning its fluid receiver
core; the reflected source population is written into that block's own
core/halo copy (no halo copy between BFL and pull). Rejects repeated
links and repeated local writers; one row per link so force counts once.
Documents stale remote solid-core slots vs unique core ownership, and
that the 4-cell refinement halo is separate. Static geometry only.
Tests: address equivalence incl. cross-block q<.5 donors, and static
BFL+pull bit-equal to the dense operator on fluid cells.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
- Add runtime body topology sync (add_body/remove_body + sync_bodies)
with recompile, DDF patch (feq + BFS inward fill), and commit.
- Unify action/obs flow: set_body/set_force are now host-only;
run() auto-uploads action and downloads obs via CUDA stream.
- Add read_body(id) -> BodyTelemetry and read_bodies() for DRL loops.
- Add FRC_REGION flag (0x0800) for force_region cells.
- Extract equilibrium helpers (lbm/equilibrium.py) and DDF patch module
(body/ddf_patch.py).
- Merge recompile / _runtime_recompile into single _recompile().
- Add n_objects to checkpoint; validate on load.
- Add test suite: 40 unit + 19 integration tests (59 total).
- Add conftest.py and docs/tests_overview.md for test documentation.
- Update README.md and CONFIG.md for new API.
Co-authored-by: Cursor <cursoragent@cursor.com>
