feat: browser access (allowed_origins, CORS with Private Network Access), job cancel, Tomie/Unity adapters, benchmark

Includes earlier uncommitted work: Tomie and Unity adapters, benchmark, structured output, call metrics.

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

scripts/windows/tomie/install_tomie_translation.bat

@@ -0,0 +1,3 @@
+@echo off
+call "%~dp0..\lib\tomie-common.bat" install %*
+exit /b %errorlevel%