Add patch changeset for wmux TUI improvements and echoform fix

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: shmuel hizmi

.changeset/patch-release-3.md

@@ -0,0 +1,12 @@
+---
+"@playfast/echoform": patch
+"@playfast/echoform-render": patch
+"@playfast/echoform-bun-ws-client": patch
+"@playfast/echoform-bun-ws-server": patch
+"@playfast/echoform-socket-client": patch
+"@playfast/echoform-socket-server": patch
+"@playfast/wmux": patch
+"@playfast/wmux-client-terminal": patch
+---
+
+Add persistent control mode, search overlay, copy mode, and file viewing to wmux TUI client. Minor echoform view-inference fix.