feat: align conversation state, composer and scoped approvals

scripts/assistant-message-footer-regression.tsx

@@ -15,7 +15,7 @@ profile.name = 'Renamed Model'
 assert.deepEqual(metadata, { modelId: 'profile-1', modelName: 'Frozen Model' })
 
 const newAssistantMessage: ChatMessage = {
-  id: 'assistant-1', role: 'assistant', content: 'answer', createdAt: renderTime.getTime(), status: 'done', ...metadata
+  id: 'assistant-1', role: 'assistant', content: 'answer', createdAt: 1, turnFinishedAt: renderTime.getTime(), status: 'done', ...metadata
 }
 const newFooter = renderToStaticMarkup(<AssistantMessageDetails message={newAssistantMessage} />)
 assert.match(newFooter, /cb-credit-usage-text cb-credit-usage-text--feedback/)
@@ -30,7 +30,7 @@ const historicalMessage: ChatMessage = {
   id: 'assistant-old', role: 'assistant', content: 'legacy answer', createdAt: renderTime.getTime(), status: 'done'
 }
 const historicalFooter = renderToStaticMarkup(<AssistantMessageDetails message={historicalMessage} />)
-assert.doesNotMatch(historicalFooter, /cb-credit-usage-text/)
+assert.doesNotMatch(historicalFooter, /cb-credit-usage-text|cb-message-time-tip/, 'no fabricated creation-time completion timestamp')
 assert.doesNotMatch(historicalFooter, /Frozen Model|Renamed Model/)
 
 const footerCss = readFileSync(resolve('src/renderer/src/components/assistant-message-details.css'), 'utf8')