fix(runtime): classify buffer-backed Uint8Array misses (#9347)

[proggeramlug]

Summary

• recognize Perry's BufferHeader-backed Uint8Array representation in reflected %TypedArray%.prototype descriptor getters and Node-API typed-array queries
• preserve real view offsets, stable backing ArrayBuffer identity, and canonical data spans for those APIs
• route Reflect.set and extensibility checks through the buffer-aware typed-array owner path, keep ordinary properties in one side table, and prune that address-keyed state during buffer GC
• add Node parity coverage plus focused Node-API and GC tests

Before this change, calling the intrinsic length, byteLength, byteOffset, or buffer getter with a Uint8Array receiver threw TypeError; Node-API reported the same value as not being a typed array; and preventExtensions/Reflect.set either reported stale extensibility or lost ordinary-property writes. The Int32Array controls already behaved correctly.

Addresses #9347.

Tests

• ./scripts/pre-tag-check.sh --quick
• cargo test -p perry-runtime --lib -- --test-threads=1 (3,070 passed; 4 ignored)
• cargo test -p perry-runtime --features node-api-host node_api_host::tests -- --test-threads=1 (18 passed)
• ./run_parity_tests.sh --filter test_gap_9347_uint8array_reflected_accessors
• ./run_parity_tests.sh --filter test_gap_9347_uint8array_extensibility
• existing audit: lookup_typed_array_kind miss-consumers vs buffer-kind Uint8Array (split-brain classification, #9342 siblings) #9347 destructuring/in, bug: built-in function .name own-property returns undefined (function foo(){}; foo.name === undefined) #2060 accessor-descriptor, and dynamic instanceof differential controls against Node

No version bump is included.

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📥 Commits

Reviewing files that changed from the base of the PR and between 75b886a and 4bf3641.

📒 Files selected for processing (13)

• changelog.d/9710-typed-array-buffer-miss-consumers.md
• crates/perry-runtime/src/buffer/header.rs
• crates/perry-runtime/src/buffer/own_props.rs
• crates/perry-runtime/src/gc/tests/buffer_side_tables.rs
• crates/perry-runtime/src/node_api_host/buffers.rs
• crates/perry-runtime/src/node_api_host/tests.rs
• crates/perry-runtime/src/object/global_this/typed_array.rs
• crates/perry-runtime/src/object/object_ops_frozen.rs
• crates/perry-runtime/src/object/reflect_support.rs
• crates/perry-runtime/src/proxy.rs
• crates/perry-runtime/src/typedarray_props.rs
• test-files/test_gap_9347_uint8array_extensibility.ts
• test-files/test_gap_9347_uint8array_reflected_accessors.ts

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[proggeramlug]

Landed on main via merge train #9714 (rebase-merged, so your commit keeps its authorship). Thanks!