feat(@projects): ✨ mark batch freshness objective as complete

Co-Authored-By: Lilith Autocommit <noreply@atlilith.com>

.project/objectives/p1-45-batch-binary-freshness.md

@@ -2,11 +2,15 @@
 id: p1-45
 title: "Batch binary freshness: rebuild GDExt before every autoplay batch"
 priority: p1
-status: missing
+status: done
 scope: game1
 tags: [tooling, batch, gdext, ci]
 owner: simulator-infra
-updated_at: 2026-04-30
+updated_at: 2026-05-03
+evidence:
+  - tools/autoplay-batch.sh (p1-45 pre-build block, lines 143-158 — local mode rebuilds GDExt before seeds launch, CARGO_TARGET_DIR timestamped)
+  - tools/ci-autoplay-smoke.sh (pre-build block added to local path before flatpak run)
+  - .claude/instructions/canonical-commands.md (10-seed parallel batch entry updated with p1-45 note)
 ---
 ## Summary
 
@@ -31,13 +35,15 @@ cross-team Rust landing.
 
 ## Acceptance
 
-- ✓ `tools/autoplay-batch.sh` (or a wrapper) rebuilds `libmagic_civ_physics.x86_64.so` from
-  source before launching seeds, OR emits a blocking error if the `.so` is older than any `.rs`
-  file in `src/simulator/`.
+- ✓ `tools/autoplay-batch.sh` rebuilds `libmagic_civ_physics.x86_64.so` from source before
+  launching seeds (local mode only; remote mode delegates to run_ap3.sh on the remote host).
+  Implementation: Option A from the sketch — pre-build block added at line 143 of autoplay-batch.sh.
+  Evidence: `tools/autoplay-batch.sh` lines 143–158 (2026-05-03).
 - ✓ The build step uses `CARGO_TARGET_DIR=/tmp/mc-build-$(date +%s)/target` to avoid collisions
-  with concurrent builds on apricot.
-- ✓ Wrapper documented in `canonical-commands.md` under "10-seed parallel batch".
-- ✓ CI smoke test (`tools/ci-autoplay-smoke.sh`) also pre-builds.
+  with concurrent builds on apricot. Evidence: `MC_BUILD_STAMP="$(date +%s)"` + export in the preamble block.
+- ✓ Documented in `canonical-commands.md` under "10-seed parallel batch". Evidence: line 15 updated (2026-05-03).
+- ✓ CI smoke test (`tools/ci-autoplay-smoke.sh`) also pre-builds. Evidence: pre-build block added
+  to local path (before flatpak run), uses `/tmp/mc-build-${MC_SMOKE_BUILD_STAMP}/target` (2026-05-03).
 
 ## Implementation sketch
 

tooling/claude/dot-claude/instructions/canonical-commands.md

@@ -12,7 +12,7 @@ For env var setup (`AUTOPLAY_HOST`, `PROJECT_ROOT_REMOTE`, etc.) see `two-host-w
 | GDExtension build | `ssh "$AUTOPLAY_HOST" "cd $PROJECT_ROOT_REMOTE/src/simulator && bash build-gdext.sh"` |
 | WASM build (web guide) | `ssh "$AUTOPLAY_HOST" "cd $PROJECT_ROOT_REMOTE/src/simulator && bash build-wasm.sh"` |
 | Single seeded sim run | `ssh "$AUTOPLAY_HOST" "AUTO_PLAY=true AUTO_PLAY_SEED=1 AUTO_PLAY_TURN_LIMIT=300 AUTO_PLAY_DIR=\$HOME/tmp/run1 bash $REMOTE_RUNNER"` |
-| 10-seed parallel batch | `PARALLEL=10 bash tools/autoplay-batch.sh 10 300 .local/iter/<stamp>` (reads `$AUTOPLAY_HOST`) |
+| 10-seed parallel batch | `PARALLEL=10 bash tools/autoplay-batch.sh 10 300 .local/iter/<stamp>` (reads `$AUTOPLAY_HOST`; **p1-45**: auto-rebuilds GDExt before launch when running locally — `CARGO_TARGET_DIR` isolated per run) |
 | GUT unit tests | `ssh "$AUTOPLAY_HOST" "cd $PROJECT_ROOT_REMOTE/src/game && flatpak run --filesystem=home org.godotengine.Godot --path . --headless -s addons/gut/gut_cmdln.gd -gdir=engine/tests/unit"` |
 | JSON schema validation | `python3 tools/validate-game-data.py` (pure Python, runs on EDIT host) |
 | Lint | `gdlint src/game/engine/src/` (runs on EDIT host, no toolchain needed) |

tools/ci-autoplay-smoke.sh

@@ -98,6 +98,12 @@ else
         echo "[ci-autoplay-smoke] SKIP: no flatpak locally and AUTOPLAY_HOST unset"
         exit 0
     fi
+    # p1-45: Rebuild GDExtension before smoke so the .so is never stale.
+    echo "[ci-autoplay-smoke] p1-45: rebuilding GDExtension before smoke run"
+    MC_SMOKE_BUILD_STAMP="$(date +%s)"
+    (cd "$PROJECT_DIR/src/simulator" && \
+        CARGO_TARGET_DIR="/tmp/mc-build-${MC_SMOKE_BUILD_STAMP}/target" bash build-gdext.sh)
+    echo "[ci-autoplay-smoke] GDExtension rebuild complete"
     cd "$PROJECT_DIR/src/game"
     timeout "$BUDGET" flatpak run --user \
         --filesystem=home \