Extract client SDK package (#1052)

* Extract client SDK package

* Polish SDK client identity defaults

* Build client before dependent CI jobs

* Restore daemon client server export

* Extract protocol and client SDK packages

* Fix provider override schema validation

* Fix app test daemon client imports

* Simplify workspace build targets

* Fix CLI test server build bootstrap

* Run SDK package tests in CI

* Fix rebase package split drift

* Restore lockfile registry metadata

* Update SDK config test for prompt default

* Move terminal stream router test to client package

* Fix rebase drift for protocol imports

* Fix SDK agent capability fixture

* Restore legacy server client exports

* Fix server export compatibility test

* Advertise custom mode icon client capability

* Remove server daemon-client exports

* Format rebased mode control import

* Fix rebase drift for protocol imports

Files added by upstream PRs (#893, #1147, #1154) referenced the pre-split
shared/ paths that this branch moves into @getpaseo/protocol. Redirect
those imports to the protocol package so typecheck stays green after the
rebase.

nix/desktop-package.nix

@@ -73,10 +73,10 @@ buildNpmPackage rec {
     # Native deps (terminal emulation; libuv-linked on Linux)
     npm rebuild node-pty
 
-    # Daemon workspaces (highlight + relay + server + cli)
-    npm run build:daemon
+    # Server workspaces (highlight + relay + protocol + client + server + cli)
+    npm run build:server
 
-    # App workspace deps not covered by build:daemon
+    # App workspace deps not covered by build:server
     npm run build --workspace=@getpaseo/expo-two-way-audio
 
     # Expo web export for the Electron renderer

nix/package.nix

@@ -79,8 +79,8 @@ buildNpmPackage rec {
     # degrade when unavailable.
     npm rebuild node-pty
 
-    # Build all daemon packages in dependency order (defined in package.json)
-    npm run build:daemon
+    # Build all server packages in dependency order (defined in package.json)
+    npm run build:server
 
     runHook postBuild
   '';