round 1: project the web transcript from append-origin events

Replace the surface-ordered fold with a log-ordered human transcript: append-origin surface events at their own log positions plus one marker per landed compaction checkpoint. Command folding, the tool-call index, and the rev-keyed memo carry over unchanged. Removes foldDegraded, the padding sentinels, baseSeq, and degradedSeqs() -- they existed only to satisfy the core fold's seq === index assertion. That also closes the pagination hole A1 exposed: a page can carry a checkpoint whose shadowed range fell outside the window, and nothing resolves surfaceOp.start anymore.
2026-07-30 10:18:24 +08:00
parent c249ad8253
commit 8e5c792b50
45 changed files with 1385 additions and 602 deletions
--- a/packages/client/ui-conversation/tests/chat-branch-tails.spec.tsx
+++ b/packages/client/ui-conversation/tests/chat-branch-tails.spec.tsx
@@ -117,6 +117,34 @@ describe('MessageItem arms', () => {
    )
    expect(unknownView.getByText(/未知 surface 事件：surface\/next/)).toBeTruthy()
  })
+
+  it('a compaction marker discloses its summary and never shows the framed checkpoint', () => {
+    const view = render(
+      <MessageItem node={{
+        kind: 'compaction', seq: 5, time: 1_000,
+        summary: '## 摘要标题\n\n保留的事实。',
+      }}
+      />,
+    )
+    const row = view.getByRole('button', { name: /上下文已压缩/ })
+    expect(row.getAttribute('aria-expanded')).toBe('false')
+    expect(view.queryByText(/保留的事实/)).toBeNull()
+    fireEvent.click(row)
+    expect(row.getAttribute('aria-expanded')).toBe('true')
+    expect(view.getByRole('heading', { name: '摘要标题' })).toBeTruthy()
+    fireEvent.click(row)
+    expect(row.getAttribute('aria-expanded')).toBe('false')
+  })
+
+  it('a marker whose provenance fell outside the window is not expandable', () => {
+    const view = render(<MessageItem node={{ kind: 'compaction', seq: 6, time: 1_000, summary: null }} />)
+    const row = view.getByRole('button', { name: /上下文已压缩/ })
+    expect(row).toHaveProperty('disabled', true)
+    expect(row.getAttribute('aria-expanded')).toBeNull()
+    expect(view.getByText('压缩摘要不可用')).toBeTruthy()
+    fireEvent.click(row) // a disabled control stays collapsed
+    expect(row.getAttribute('aria-expanded')).toBeNull()
+  })
 })

 describe('formatMessageClock', () => {
--- a/packages/client/ui-conversation/tests/chat-code-subcalls.spec.tsx
+++ b/packages/client/ui-conversation/tests/chat-code-subcalls.spec.tsx
@@ -55,7 +55,7 @@ function snapshotWith(
  runningCalls: RunningToolCall[] = [],
 ): ConversationSnapshot {
  return {
-    sessionId: SID, nodes, foldDegraded: false, partial: null, runningCalls, codeDispatches,
+    sessionId: SID, nodes, partial: null, runningCalls, codeDispatches,
    pending: [], queue: [], running: runningCalls.length > 0, composerPhase: 'active', removed: false,
    openState: 'open', openError: null,
    hasMore: false, loadingOlder: false, promptError: null, blank: false, lastAgentError: null,
--- a/packages/client/ui-conversation/tests/chat-stats-bash-sample.spec.tsx
+++ b/packages/client/ui-conversation/tests/chat-stats-bash-sample.spec.tsx
@@ -26,7 +26,7 @@ const assistant = (seq: number, turn: number, usage?: unknown): AssistantMessage

 function snapshotBase(): ConversationSnapshot {
  return {
-    sessionId: SID, nodes: [], foldDegraded: false, partial: null, runningCalls: [], codeDispatches: new Map(),
+    sessionId: SID, nodes: [], partial: null, runningCalls: [], codeDispatches: new Map(),
    pending: [], queue: [], running: false, composerPhase: 'active', removed: false, openState: 'open', openError: null,
    hasMore: false, loadingOlder: false, promptError: null, blank: false, lastAgentError: null,
  }
--- a/packages/client/ui-conversation/tests/chat-view.spec.tsx
+++ b/packages/client/ui-conversation/tests/chat-view.spec.tsx
@@ -29,7 +29,7 @@ const SID = 's1' as SessionId

 function snapshotBase(): ConversationSnapshot {
  return {
-    sessionId: SID, nodes: [], foldDegraded: false, partial: null, runningCalls: [], codeDispatches: new Map(),
+    sessionId: SID, nodes: [], partial: null, runningCalls: [], codeDispatches: new Map(),
    pending: [], queue: [], running: false, composerPhase: 'active', removed: false, openState: 'open', openError: null,
    hasMore: false, loadingOlder: false, promptError: null, blank: false, lastAgentError: null,
  }
--- a/packages/client/ui-conversation/tests/gate-branch-tails.spec.tsx
+++ b/packages/client/ui-conversation/tests/gate-branch-tails.spec.tsx
@@ -18,7 +18,7 @@ const SID = 's1' as SessionId

 function snapshotBase(): ConversationSnapshot {
  return {
-    sessionId: SID, nodes: [], foldDegraded: false, partial: null, runningCalls: [], codeDispatches: new Map(),
+    sessionId: SID, nodes: [], partial: null, runningCalls: [], codeDispatches: new Map(),
    pending: [], queue: [], running: false, composerPhase: 'active', removed: false, openState: 'open', openError: null,
    hasMore: false, loadingOlder: false, promptError: null, blank: false, lastAgentError: null,
  }
--- a/packages/client/ui-conversation/tests/input-bar.spec.tsx
+++ b/packages/client/ui-conversation/tests/input-bar.spec.tsx
@@ -20,7 +20,7 @@ const SID = 's1' as SessionId

 function snapshotOf(overrides: Partial<ConversationSnapshot> = {}): ConversationSnapshot {
  return {
-    sessionId: SID, nodes: [], foldDegraded: false, partial: null, runningCalls: [], codeDispatches: new Map(),
+    sessionId: SID, nodes: [], partial: null, runningCalls: [], codeDispatches: new Map(),
    pending: [], queue: [], running: false, composerPhase: 'active', removed: false,
    openState: 'open', openError: null, hasMore: false, loadingOlder: false,
    promptError: null, blank: false, lastAgentError: null,
--- a/packages/client/ui-conversation/tests/input-matrix.spec.tsx
+++ b/packages/client/ui-conversation/tests/input-matrix.spec.tsx
@@ -23,7 +23,7 @@ const SID = 's1' as SessionId
 /** Standard-props InputBar mount over a real shell (the composer-bar entry shape). */
 function mountBar(shell: SessionInputShell, over?: { running?: boolean; disabled?: boolean }) {
  const session = createSnapshotStore<ConversationSnapshot>({
-    sessionId: SID, nodes: [], foldDegraded: false, partial: null, runningCalls: [], codeDispatches: new Map(),
+    sessionId: SID, nodes: [], partial: null, runningCalls: [], codeDispatches: new Map(),
    pending: [], queue: [], running: over?.running ?? false, composerPhase: 'active',
    removed: over?.disabled ?? false, openState: 'open', openError: null, hasMore: false,
    loadingOlder: false, promptError: null, blank: false, lastAgentError: null,
--- a/packages/client/ui-conversation/tests/input-scenarios.spec.tsx
+++ b/packages/client/ui-conversation/tests/input-scenarios.spec.tsx
@@ -109,7 +109,7 @@ async function scopedBench(register?: (slash: SlashService) => void) {
  actx.on('slash/input-consume-token', req => shell.consumeToken(req.guard) ? true : undefined)
  const wiring = shell
  const sessionStore = createSnapshotStore<ConversationSnapshot>({
-    sessionId, nodes: [], foldDegraded: false, partial: null, runningCalls: [], codeDispatches: new Map(),
+    sessionId, nodes: [], partial: null, runningCalls: [], codeDispatches: new Map(),
    pending: [], queue: [], running: false, composerPhase: 'active', removed: false,
    openState: 'open', openError: null, hasMore: false, loadingOlder: false,
    promptError: null, blank: false, lastAgentError: null,
--- a/packages/client/ui-conversation/tests/queue-dock.spec.tsx
+++ b/packages/client/ui-conversation/tests/queue-dock.spec.tsx
@@ -18,7 +18,7 @@ const SID = 's1' as SessionId

 function snapshotWith(queue: QueuedMessage[]): ConversationSnapshot {
  return {
-    sessionId: SID, nodes: [], foldDegraded: false, partial: null, runningCalls: [], codeDispatches: new Map(),
+    sessionId: SID, nodes: [], partial: null, runningCalls: [], codeDispatches: new Map(),
    pending: [], queue, running: true, composerPhase: 'active', removed: false, openState: 'open', openError: null,
    hasMore: false, loadingOlder: false, promptError: null, blank: false, lastAgentError: null,
  }
--- a/packages/client/ui-conversation/tests/skeleton.spec.tsx
+++ b/packages/client/ui-conversation/tests/skeleton.spec.tsx
@@ -47,7 +47,7 @@ const workspaceState = (items: readonly WorkspaceView[]): WorkspaceListState =>

 function conversationSnapshot(overrides: Partial<ConversationSnapshot> = {}): ConversationSnapshot {
  return {
-    sessionId: SID, nodes: [], foldDegraded: false, partial: null, runningCalls: [], codeDispatches: new Map(),
+    sessionId: SID, nodes: [], partial: null, runningCalls: [], codeDispatches: new Map(),
    pending: [], queue: [], running: false, composerPhase: 'active', removed: false,
    openState: 'open', openError: null, hasMore: false, loadingOlder: false,
    promptError: null, blank: false, lastAgentError: null,