v1.2.0:5 — Gear (breathing, 1-5) replaces RPE as the effort field for cardio

Cardio exercises now log a breathing "Gear" (1-5, per Brian MacKenzie)
instead of RPE (6-10) as their effort field; strength keeps RPE. An exercise
counts as cardio when its equipment type is "cardio" or it carries the
"cardio" muscle group (isCardioExercise in lib/exerciseOptions), so the
Assault Bike (type "assault bike") qualifies.

New nullable SetLog.gear column added by the boot-time guarded ALTER in
docker_entrypoint.sh (additive, idempotent); plumbed through all 5 set-write
paths, the summary/edit views, and CSV/JSON import-export. Existing rpe data
is untouched and still displays. Program/AI target-RPE is unaffected.

start9/0.4/startos/versions/v1.2.0.5.ts

@@ -0,0 +1,25 @@
+import { IMPOSSIBLE, VersionInfo } from '@start9labs/start-sdk'
+
+/**
+ * v1.2.0:5 — Gear (breathing, 1-5) replaces RPE as the cardio effort field (2026-06-16).
+ *
+ * Cardio exercises now log a breathing "Gear" (1-5, per Brian MacKenzie)
+ * instead of RPE (6-10) as their effort field; non-cardio keeps RPE. An
+ * exercise counts as cardio if its equipment type is "cardio" or it carries
+ * the "cardio" muscle group (so Assault Bike, type "assault bike", qualifies).
+ *
+ * Additive schema change: the new nullable SetLog.gear column is added by the
+ * boot-time guarded ALTER in docker_entrypoint.sh (migration stays empty, like
+ * every other column add). Existing rpe data is untouched and still displays.
+ */
+export const v_1_2_0_5 = VersionInfo.of({
+  version: '1.2.0:5',
+  releaseNotes: {
+    en_US:
+      'Cardio exercises (assault bike, rower, ski erg, running, etc.) now log a breathing "Gear" (1-5) instead of RPE as their effort field. Strength exercises still use RPE. No data changes.',
+  },
+  migrations: {
+    up: async () => {},
+    down: IMPOSSIBLE,
+  },
+})