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-skill/src/client/index.ts

@@ -29,9 +29,8 @@
  * This browser half also owns the `skill` keyed toolview: a replay-stable
  * accent row derived only from each logged call/result slice.
  */
-import type { ConnectionHandle, SessionId, SkillEntry } from '@deepseek-ai/dsh-client-connection/client'
-// Type-only: pulls the forwarded Host-event face and ctx.remote merge.
-import type {} from '@deepseek-ai/dsh-api-remotes/client'
+// Type-only: the carrier types, the forwarded Host-event face and the ctx.remote merge.
+import type { ConnectionHandle, SessionId, SkillEntry } from '@deepseek-ai/dsh-api-remotes/client'
 import type { ClientContext, ISessions } from '@deepseek-ai/dsh-client-runtime/client'
 import type { SlashServiceContract, SlashSource } from '@deepseek-ai/dsh-client-ui-slash/client'
 // Type-only: pulls the locale plugin's Context merge (ctx.locale).