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-theme/tests/settings-store.client.spec.ts

@@ -0,0 +1,28 @@
+/** Appearance row store: snapshot-mirror action and the revision guard. */
+import { describe, expect, it } from 'vitest'
+import { createAppearanceRowStore } from '../src/client/settings-store.ts'
+
+describe('createAppearanceRowStore', () => {
+  it('init shape: system preference with revision at -1', () => {
+    const store = createAppearanceRowStore().create()
+    expect(store.getSnapshot()).toEqual({ preference: 'system', revision: -1 })
+  })
+
+  it('sync mirrors the preference and advances the revision', () => {
+    const store = createAppearanceRowStore().create()
+    store.actions.sync('dark', 0)
+    expect(store.getSnapshot()).toEqual({ preference: 'dark', revision: 0 })
+    store.actions.sync('light', 2)
+    expect(store.getSnapshot().preference).toBe('light')
+    expect(store.getSnapshot().revision).toBe(2)
+  })
+
+  it('revision guard drops stale and duplicate writes', () => {
+    const store = createAppearanceRowStore().create()
+    store.actions.sync('dark', 3)
+    store.actions.sync('system', 2)
+    store.actions.sync('system', 3)
+    expect(store.getSnapshot().preference).toBe('dark')
+    expect(store.getSnapshot().revision).toBe(3)
+  })
+})