Merge remote-tracking branch 'origin/master' into feat/web-message-feedback-ui

Adapt to two contract changes master introduced:

- The generated Remote face now wraps every business result in
  RemoteResult, folding carrier failures into an ok:false branch instead
  of rejecting. The controller reads that envelope at its three call
  sites and maps a carrier failure onto the same settled shape the
  controls already render; three specs cover the new branch.
- Client packages split their tsconfig into host and client halves, and
  the host aggregate now compiles any test not named *.client.spec.*.
  Rename this package's specs to the client convention and drop the
  ../connection project reference, which pointed at a solution file that
  no longer carries the client sources.

Keep master's mount loop with its rollback-on-failure in api-remotes and
add messageFeedbackRemote to it.

packages/client/ui-conversation/tests/chat-store.client.spec.ts

@@ -0,0 +1,81 @@
+// @vitest-environment jsdom
+/** Chat-store actions, scoped persistence, and instance isolation. */
+import { beforeEach, describe, expect, it } from 'vitest'
+import { createChatStore } from '../src/client/stores.ts'
+
+const KEY = 'dsh.conversation.chat'
+
+beforeEach(() => {
+  localStorage.clear()
+})
+
+describe('createChatStore', () => {
+  it('init shape: empty selection/draft/view', () => {
+    const store = createChatStore().create()
+    expect(store.store.getSnapshot()).toEqual({ selection: null, draft: '', view: null, inspect: null })
+  })
+
+  it('actions cover the declared write set', () => {
+    const store = createChatStore().create()
+
+    store.actions.select({ turnSeq: 3, callId: 'c1', toolName: 'bash' })
+    expect(store.store.getSnapshot().selection).toEqual({ turnSeq: 3, callId: 'c1', toolName: 'bash' })
+    store.actions.select(null)
+    expect(store.store.getSnapshot().selection).toBeNull()
+
+    store.actions.setDraft('hello')
+    expect(store.store.getSnapshot().draft).toBe('hello')
+
+    store.actions.setView('chat')
+    expect(store.store.getSnapshot().view).toBe('chat')
+
+    store.actions.setInspect({ callId: 'c1' })
+    expect(store.store.getSnapshot().inspect).toEqual({ callId: 'c1' })
+    store.actions.setInspect(null)
+    expect(store.store.getSnapshot().inspect).toBeNull()
+  })
+
+  it('persists per scope key and rehydrates a fresh instance', () => {
+    const handle = createChatStore()
+    const s1 = handle.create('sess-1')
+    s1.actions.setDraft('draft for one')
+    s1.actions.select({ turnSeq: 1 })
+
+    // Scope-suffixed key: each session persists separately.
+    expect(localStorage.getItem(`${KEY}.sess-1`)).not.toBeNull()
+    expect(localStorage.getItem(`${KEY}.sess-2`)).toBeNull()
+
+    // A rebuilt instance under the same scope key rehydrates the state.
+    const again = createChatStore().create('sess-1')
+    expect(again.store.getSnapshot().draft).toBe('draft for one')
+    expect(again.store.getSnapshot().selection).toEqual({ turnSeq: 1 })
+
+    // A sibling scope starts clean.
+    const other = createChatStore().create('sess-2')
+    expect(other.store.getSnapshot().draft).toBe('')
+  })
+
+  it('clearPersisted removes the scope entry (session-death cleanup hook)', () => {
+    const store = createChatStore().create('sess-9')
+    store.actions.setDraft('doomed')
+    expect(localStorage.getItem(`${KEY}.sess-9`)).not.toBeNull()
+    store.clearPersisted()
+    expect(localStorage.getItem(`${KEY}.sess-9`)).toBeNull()
+  })
+
+  it('every create() is an independent instance; the factory holds no singleton', () => {
+    const handle = createChatStore()
+    const a = handle.create()
+    const b = handle.create()
+    a.actions.setDraft('only in a')
+    expect(b.store.getSnapshot().draft).toBe('')
+    // Two factory calls likewise share no LIVE state (identity is per handle
+    // VALUE, not per module — the sharing contract lives in the framework's
+    // handle x scope-key resolution, not in module state). Persistence is the
+    // one sanctioned cross-instance channel: clear it so this assertion sees
+    // memory identity, not rehydration (covered by the persist case above).
+    localStorage.clear()
+    const c = createChatStore().create()
+    expect(c.store.getSnapshot().draft).toBe('')
+  })
+})