Release notes: 2026-05-27 — ph-am-slicer-workflow¶

Status: Ready for review
Repo: li-langverse/lic
PR: (pending)
PH / REQ: PH-AM, WP-AM-01
Author: agent

Summary (one sentence)¶

Deepens li-sim-additive with PH-AM AM-0 slicer workflow stage gates (slice → preview → export), require_sim_pass export gate, and package/composable smokes.

Agent continuation (required)¶

Read: docs/game-dev/specs/li-sim-additive-rfc.md, packages/li-sim-additive/src/lib.li
Run: ./build/compiler/lic/lic check packages/li-sim-additive/li-tests/smoke/slicer_workflow.li
Then: WP-AM-02 thermal require_sim_pass witness tied to tier-2 heat; WP-AM-03 sim.export.print 3MF/G-code
Blocked on: PH-SCI-2 heat tier-2 for real thermal gate (not composable-only)

Changed (specific)¶

Area	What	Evidence
`packages/li-sim-additive/src/lib.li`	AM-0 slicer stages, export format ids, `run_additive_slicer_workflow`, version bump to 2	`lic check` green
`packages/li-sim/src/lib.li`	`algo_am_slice_layers` / `algo_am_thermal_warp` / `algo_am_export_gcode_3mf` (601–610 registry)	composable imports resolve
Smokes	`slicer_workflow.li`, `import_sim_additive_slicer_workflow.li`	`lic check` exit 0

Not changed (scope fence)¶

Thermal/warp simulation kernels (WP-AM-02) — not in this PR
sim.export.print printer I/O (WP-AM-03) — not in this PR
Studio export wizard UI (PH-UX) — not in this PR
Compiler / Lean / tier-1 benches — not in this PR

Breaking changes¶

None — additive API; li_sim_additive_version() returns 2 (smoke updated).

Security¶

N/A — no trusted FFI or export I/O in this stub workflow.

Performance¶

N/A — composable stage stubs only; no bench oracle row.

Downstream¶

Repo	Action
li-sim-additive mirror	sync after merge via `push-official-package-repo.sh`
lip / lit / lis	N/A

CHANGELOG entry (paste into Unreleased)¶

### Added
- **PH-AM AM-0:** slicer workflow stages in `li-sim-additive` (slice/preview/export gates, `run_additive_slicer_workflow`) — [2026-05-27-ph-am-slicer-workflow.md](docs/release-notes/2026-05-27-ph-am-slicer-workflow.md).