v1.2.0:6 — AI "generate today's workout" from a brain-dump

Add a single-session AI flow alongside program generation: describe a
workout in plain words and get a ready-to-log workout back — exercises
with suggested weights, target reps, and set counts grounded in the
user's recent history. The suggestion can be inline-edited or refined
by sending a follow-up instruction back to the model, then "Use this
workout" pre-fills the normal New Workout form (nothing persists until
the user saves through the regular path).

Why reuse, not fork: the existing program-generation spine (detached
background runner, SSE streaming, lenient-JSON preview, 5 providers,
history context, library name->id mapping) already does the hard parts.
A new AIGeneration.kind discriminant ("program" | "workout", default
"program" via boot-time guarded ALTER) selects the parser and keeps the
ephemeral workout rows out of the program-shaped AI history. Refine is a
fresh generation seeded with the prior suggestion (validated through the
same schema before it re-enters the prompt).

Hand-off is sessionStorage -> /main/workouts/new?from=ai -> AiWorkoutPrefill,
which expands each suggestion into N sets and maps effort by cardio-ness
(Gear for cardio, RPE for strength). EditWorkoutData.id is now optional so
the prefill CREATEs rather than PATCHing a nonexistent id. The AI suggests
each weight in that exercise's effective logging unit (the library JSON
carries a per-exercise unit) so the stored number and unit never diverge.

Built + sideloaded to immense-voyage.local as 1.2.0:6; on-box ALTER and
non-root launch confirmed via start-cli. tsc clean (app + packaging),
251 tests pass, next build + s9pk build succeed.

start9/0.4/startos/versions/index.ts

@@ -20,6 +20,7 @@ import { v_1_2_0_2 } from './v1.2.0.2'
 import { v_1_2_0_3 } from './v1.2.0.3'
 import { v_1_2_0_4 } from './v1.2.0.4'
 import { v_1_2_0_5 } from './v1.2.0.5'
+import { v_1_2_0_6 } from './v1.2.0.6'
 
 /**
  * Version graph for the `proof-of-work` package.
@@ -80,9 +81,14 @@ import { v_1_2_0_5 } from './v1.2.0.5'
  * v1.2.0:5 — Gear (breathing, 1-5, Brian MacKenzie) replaces RPE as the effort
  *            field for cardio exercises (type "cardio" or "cardio" muscle
  *            group); strength keeps RPE. New SetLog.gear column via boot ALTER.
+ * v1.2.0:6 — AI "generate today's workout": describe a single session and get
+ *            a ready-to-log workout (suggested weights/reps from history),
+ *            inline-edit + refine-with-AI, then pre-fill the workout log.
+ *            Reuses the generation spine via a new AIGeneration.kind
+ *            discriminant (boot ALTER, default "program"). No data changes.
  */
 export const versionGraph = VersionGraph.of({
-  current: v_1_2_0_5,
+  current: v_1_2_0_6,
   other: [
     v_1_0_0_1,
     v_1_0_0_2,
@@ -104,5 +110,6 @@ export const versionGraph = VersionGraph.of({
     v_1_2_0_2,
     v_1_2_0_3,
     v_1_2_0_4,
+    v_1_2_0_5,
   ],
 })