test(session): align turn-end contract artifacts

packages/compact/compact-basic/tests/compact-basic.spec.ts

@@ -130,7 +130,7 @@ function conversation(turns = 4, text = 'fixture '.repeat(40).trim()): Session {
       }),
     }, { surfaceOp: 'append' })
     session.append('step/end', { turn, step: 1 })
-    session.append('turn/end', { turn, step: 1, reason: { kind: 'completed' } })
+    session.append('turn/end', { turn, reason: { kind: 'completed' } })
   }
   session.append('turn/start', {
     turn: turns + 1,
@@ -180,7 +180,7 @@ function toolConversation(): Session {
       }),
     }, { surfaceOp: 'append' })
     session.append('step/end', { turn, step: 1 })
-    session.append('turn/end', { turn, step: 1, reason: { kind: 'completed' } })
+    session.append('turn/end', { turn, reason: { kind: 'completed' } })
   }
   session.append('turn/start', { turn: 4 })
   return session
@@ -226,7 +226,7 @@ function oversizedToolResult(chars = 3_000, withCompactablePrompt = false): Sess
     meta: { presentation: 'preserved' },
   }, { surfaceOp: 'append' })
   session.append('step/end', { turn: 1, step: 1 })
-  session.append('turn/end', { turn: 1, step: 1, reason: { kind: 'completed' } })
+  session.append('turn/end', { turn: 1, reason: { kind: 'completed' } })
   session.append('turn/start', { turn: 2 })
   return session
 }
@@ -935,7 +935,7 @@ describe('compaction region transaction', () => {
   it('requires an open turn and an idle compaction bracket', async () => {
     const compact = service()
     const closed = conversation(1)
-    closed.append('turn/end', { turn: 2, step: 0, reason: { kind: 'completed' } })
+    closed.append('turn/end', { turn: 2, reason: { kind: 'completed' } })
     const nodes = closed.surface.nodes
     await expect(compact.compactRegion(
       nodes[0]!,

packages/compact/compact-basic/tests/compact-loop-repro.spec.ts

@@ -209,7 +209,7 @@ function overflowHistorySeed(): SessionEvent[] {
       }),
     }, { surfaceOp: 'append' })
     session.append('step/end', { turn, step: 1 })
-    session.append('turn/end', { turn, step: 1, reason: { kind: 'completed' } })
+    session.append('turn/end', { turn, reason: { kind: 'completed' } })
   }
   return [...session.events]
 }

packages/compact/compact-basic/tests/manual-compact.spec.ts

@@ -193,7 +193,7 @@ function closedConversation(turns = 2, lastTurnNumber = turns): Session {
       }),
     }, { surfaceOp: 'append' })
     session.append('step/end', { turn, step: 1 })
-    session.append('turn/end', { turn, step: 1, reason: { kind: 'completed' } })
+    session.append('turn/end', { turn, reason: { kind: 'completed' } })
   }
   return session
 }
@@ -437,7 +437,7 @@ describe('compactNow transaction and failure classification', () => {
     const original = closedConversation(2)
     original.append('compact/start', { turn: null })
     original.append('turn/start', { turn: 3 })
-    original.append('turn/end', { turn: 3, step: 0, reason: { kind: 'interrupted' } })
+    original.append('turn/end', { turn: 3, reason: { kind: 'interrupted' } })
     const reloaded = new Session(SessionId('reloaded-orphan'), [...original.events])
     const agent = fakeAgent(reloaded, () => () => undefined)
 

packages/compact/compact-tool-result-prune/tests/tool-result-prune.spec.ts

@@ -60,7 +60,7 @@ function appendToolStep(
     ...extra,
   }, { surfaceOp: 'append' })
   session.append('step/end', { turn, step: 1 })
-  session.append('turn/end', { turn, step: 1, reason: { kind: 'completed' } })
+  session.append('turn/end', { turn, reason: { kind: 'completed' } })
   return result.seq
 }
 

packages/compact/compact/tests/invariant.spec.ts

@@ -90,7 +90,7 @@ describe('compaction invariants', () => {
 
     expect(() => replayed.append(
       'turn/end',
-      { turn: 1, step: 0, reason: { kind: 'interrupted' } },
+      { turn: 1, reason: { kind: 'interrupted' } },
     )).not.toThrow()
   })
 
@@ -100,7 +100,7 @@ describe('compaction invariants', () => {
     const source = new Session(SessionId('stale-repaired-compaction-source'))
     source.append('compact/start', { turn: null })
     startTurn(source)
-    source.append('turn/end', { turn: 1, step: 0, reason: { kind: 'interrupted' } })
+    source.append('turn/end', { turn: 1, reason: { kind: 'interrupted' } })
     const replayed = ctx.sessions.create(SessionId('stale-repaired-compaction-replay'), {
       seed: source.events,
     })
@@ -116,7 +116,7 @@ describe('compaction invariants', () => {
 
     expect(() => {
       startTurn(replayed, 2)
-      replayed.append('turn/end', { turn: 2, step: 0, reason: { kind: 'completed' } })
+      replayed.append('turn/end', { turn: 2, reason: { kind: 'completed' } })
     }).not.toThrow()
   })
 
@@ -126,7 +126,7 @@ describe('compaction invariants', () => {
     const source = new Session(SessionId('closed-nested-compaction-source'))
     source.append('compact/start', { turn: null })
     startTurn(source)
-    source.append('turn/end', { turn: 1, step: 0, reason: { kind: 'interrupted' } })
+    source.append('turn/end', { turn: 1, reason: { kind: 'interrupted' } })
     source.append('compact/end', { turn: null, error: 'failed after crossing turn' })
     const replayed = ctx.sessions.create(SessionId('closed-nested-compaction-replay'), {
       seed: source.events,
@@ -147,7 +147,7 @@ describe('compaction invariants', () => {
     await ctx.plugin(InvariantService)
     await ctx.plugin(CompactInvariant)
     expect(() => session.append('compact/end', { turn: 1, error: 'resume failed' })).not.toThrow()
-    session.append('turn/end', { turn: 1, step: 0, reason: { kind: 'completed' } })
+    session.append('turn/end', { turn: 1, reason: { kind: 'completed' } })
   })
 
   it('adopts a bare session and ignores unrelated committed events', async () => {
@@ -200,7 +200,7 @@ describe('compaction invariants', () => {
     await ctx.plugin(SessionStore)
     const session = ctx.sessions.create()
     startTurn(session)
-    session.append('turn/end', { turn: 1, step: 0, reason: { kind: 'completed' } })
+    session.append('turn/end', { turn: 1, reason: { kind: 'completed' } })
     session.append('compact/start', { turn: 1 })
     await ctx.plugin(InvariantService)
     await expect(ctx.plugin(CompactInvariant).then(() => undefined)).rejects.toThrow(/outside any open turn/)
@@ -215,7 +215,7 @@ describe('compaction invariants', () => {
     standalone.append('compact/end', { turn: null, error: 'cancelled' })
     expect(() => {
       startTurn(standalone)
-      standalone.append('turn/end', { turn: 1, step: 0, reason: { kind: 'completed' } })
+      standalone.append('turn/end', { turn: 1, reason: { kind: 'completed' } })
     }).not.toThrow()
 
     const numbered = ctx.sessions.create()
@@ -223,12 +223,12 @@ describe('compaction invariants', () => {
     numbered.append('compact/start', { turn: 1 })
     expect(() => numbered.append(
       'turn/end',
-      { turn: 1, step: 0, reason: { kind: 'completed' } },
+      { turn: 1, reason: { kind: 'completed' } },
     )).toThrow(/turn\/end cannot cross an open compaction for turn 1/)
     numbered.append('compact/end', { turn: 1, error: 'cancelled' })
     expect(() => numbered.append(
       'turn/end',
-      { turn: 1, step: 0, reason: { kind: 'completed' } },
+      { turn: 1, reason: { kind: 'completed' } },
     )).not.toThrow()
   })
 

packages/compact/compact/tests/tool-pairing.spec.ts

@@ -271,7 +271,7 @@ describe('tool-pairing cache refresh', () => {
     expect(eventIndexReads).toBe(3)
 
     events.push({
-      type: 'turn/end', seq: 3, time: 3, data: { turn: 1, step: 0, reason: { kind: 'completed' } },
+      type: 'turn/end', seq: 3, time: 3, data: { turn: 1, reason: { kind: 'completed' } },
     })
     expect(toolPairingBalancedAfter(session, nodes[2]!)).toBe(true)
     expect(eventCollectionReads).toBe(1)