[codex] Fix OpenTUI native render lowering

[andrewtdiz]

Summary

Fix the remaining generic Perry-native OpenTUI render smoke blocker after #4150 by correcting three scoped lowering/runtime-shape issues exercised by the render path:

• allow builtin generic Array static types to use array receiver lowering
• route side-effect-free obj.arrayProp[index] = value through the existing IndexSet fast path when target and receiver property paths match
• remove the invalid closure guard that made super() in a derived constructor fail when the constructor was reached through a closure-created new Cache() path

This is scoped to generic OpenTUI render/input/update/clean-teardown evidence. It does not claim actual OpenCode native completion.

#4176 comparison

I compared #4176 (addf0430271e2efa97a2e7ceea7d8f8d144e9065, crates/perry-runtime/src/proxy.rs) against the previously validated safe OpenTUI patch. #4176 is only a subset and was not sufficient for the generic OpenTUI lane:

• the derived-constructor reducer still failed with ReferenceError: identifier is not defined
• the property-array reducer exited 139
• the OpenTUI renderlib reducer exited 139

So this PR keeps the complete scoped compiler-side fix instead of the unsafe exploratory PutValue route.

Validation

• cargo fmt
• cargo build --release -p perry
• cargo build --release -p perry-runtime
• cargo build --release -p perry-stdlib
• PERRY_RUNTIME_DIR=/tmp/perry-opentui-render-pr/target/release tests/test_issue_4150_array_property_index_set.sh
• PERRY_RUNTIME_DIR=/tmp/perry-opentui-render-pr/target/release tests/test_issue_4150_new_array_index_set.sh
• PERRY_RUNTIME_DIR=/tmp/perry-opentui-render-pr/target/release tests/test_issue_4150_derived_constructor_arrow_new.sh
• OpenTUI renderlib reducer: repro-perry-renderlib-drawtext.ts reached expected before/after visible buffer text
• Generic Perry-native OpenTUI fallback smoke passed with full stdlib:

cd /Users/andrew/Documents/opentui/packages/core
PERRY_BIN=/tmp/perry-opentui-render-pr/target/release/perry \
  OTUI_PERRY_NATIVE_SMOKE_DIAGNOSTICS=1 \
  bun scripts/perry-native-smoke.ts --compile-timeout-ms 120000 --keep-temp

Observed output:

Perry-native generic OpenTUI fallback smoke passed.
Observed output: perry-native: idle -> perry-native: pressed:x
Product status: incomplete because the OpenCode TUI entrypoint was not available.