test: update conversation assembly coverage and docs

packages/client/ui-conversation/tests/chat-apply.spec.tsx

@@ -53,7 +53,7 @@ describe('apply wiring', () => {
     await b.runtime.dispose()
   })
 
-  it('registers the chat view as the first ring entry, declaring the whole-Tool seat', async () => {
+  it('registers the chat view and its keyed business-node seat', async () => {
     const b = await bench()
     const entries = b.slots.entries('conversation.view')
     expect(entries.map(e => e.options.id)).toEqual(['chat'])
@@ -62,7 +62,7 @@ describe('apply wiring', () => {
     expect(entries[0]?.options.order).toBe(0)
     // Declaring is claiming: the chat entry's registration put the hole on
     // the ledger with the contract's kind/scope.
-    expect(b.slots.spec('conversation.chat.tool')).toEqual({ kind: 'single', scope: 'session' })
+    expect(b.slots.spec('conversation.chat.node')).toEqual({ kind: 'keyed', scope: 'session' })
     await b.runtime.dispose()
   })
 
@@ -95,7 +95,7 @@ describe('apply wiring', () => {
     // file-mutation registrant claims both write and edit for the diff card; the
     // one search row registers under both grep and glob; the web rows register
     // one component under both web tool names.
-    expect(b.slots.entries('conversation.chat.tool')).toHaveLength(0)
+    expect(b.slots.entries('conversation.chat.node').map(entry => entry.options.key)).not.toContain('tool-call')
     // Stats stick with the composer (not inside ChatView).
     expect(b.slots.entries('conversation.composer.dock').map(e => e.options.id)).toEqual(['stats'])
     await b.runtime.dispose()
@@ -108,8 +108,8 @@ describe('apply wiring', () => {
     // The declared ring collapses with its declaring entry, and the chat
     // entry's keyed hole (with the sample's registration) collapses with it.
     expect(b.slots.entries('conversation.view')).toHaveLength(0)
-    expect(b.slots.entries('conversation.chat.tool')).toHaveLength(0)
-    expect(b.slots.spec('conversation.chat.tool')).toBeUndefined()
+    expect(b.slots.entries('conversation.chat.node')).toHaveLength(0)
+    expect(b.slots.spec('conversation.chat.node')).toBeUndefined()
     expect(b.slots.entries('details')).toHaveLength(0)
     expect(b.slots.entries('settings.general.item')).toHaveLength(0)
     expect(b.runtime.ctx.get('conversation')).toBeUndefined()