feat: cut over to WASM backend

etc/uce/settings.cfg

@@ -25,6 +25,15 @@ JIT_COMPILE_ON_REQUEST=1
 COMPILE_WASM_UNITS=0
 WASM_COMPILE_SCRIPT=scripts/compile_wasm_unit
 
+# DEFAULT PAGE RENDER BACKEND. W5 defaults to the WASM backend with explicit
+# native fallbacks for host-owned surfaces that are not membrane APIs yet.
+WASM_BACKEND_ENABLED=1
+WASM_BACKEND_VERBOSE=0
+WASM_CORE_PATH=/Code/uce.openfu.com/uce/bin/wasm/core.wasm
+WASM_MEMORY_LIMIT_BYTES=536870912
+WASM_EPOCH_DEADLINE_TICKS=200
+WASM_EPOCH_PERIOD_MS=50
+
 # ENABLE THE BACKGROUND PROACTIVE COMPILER LOOP
 PROACTIVE_COMPILE_ENABLED=1