fix(codegen): namespace-member access of a renamed class export (#1758)

[proggeramlug]

Summary

import * as M from "..."; M.Foo where Foo is a local renamed class export
(export { Foo$ as Foo }) resolved class_ids["Foo"] (the export alias) — a
miss, since the class is named Foo$ — so M.Foo fell back to a JS global of
that name (or undefined), and any static read (M.Foo.ast) returned undefined.

This unblocks effect Schema decode. effect's
class Number$ extends make(numberKeyword) {} is re-exported via
export { Number$ as Number }; S.decodeUnknownSync(S.Number) reads
S.Number.ast — but S.Number resolved to the global Number constructor
(the alias collides with the global), so .ast was undefined →
Cannot read properties of undefined (reading '_tag') deep in ParseResult.

Localization

An env-gated diagnostic in js_object_get_field_by_name showed the
S.Number.ast receiver had top16=0x0 (a POINTER to the global Number), not
the 0x7ffe class-ref that Number$ is in the defining module. Minimal repro
(compilePackages): export { X$ as X } + import * as M; M.X.ast → undefined;
direct exports and named imports both work — only the local rename via
namespace member access breaks.

Fix (2 edits)

• compile.rs — record the origin (local) name for local renamed
  Export::Named in all_module_export_origin_names, scoped to classes
  (renamed var/func exports key their wrapper symbols on the export name;
  feeding the origin name there breaks linking — out of scope).
• property_get.rs — when resolving a namespace-member class ref, fall back
  from the export alias to the origin name via import_function_origin_names
  before giving up (otherwise it drops to the global / undefined).

Validation

• S.decodeUnknownSync(S.Number)(42) → 42, S.String → "hello" —
  byte-identical to node. effect Schema now decodes.
• effect/Effect deep import stays green (result: 42); import * as S from "effect/Schema" init still works.
• New multi-file gap test test_gap_renamed_class_export_namespace.ts
  (+ _helpers/renamed_class_export.ts) — byte-for-byte with node across
  renamed (global-colliding Number + non-colliding Widget) and direct
  exports, plus a guard that the global Number is unshadowed.
• Cross-module / import / namespace / class regression sweep (89 tests,
  PERRY_NO_AUTO_OPTIMIZE=1): 0 regressions — all 13 failures fail
  identically on origin/main (decorators / static-block / mixins /
  node-error-format / pino / #503 guard refuses dynamic dispatch on require()-imported stdlib namespaces (compile-fail) #1723 / Auto-bind reactive template literals in Text/TextField labels to perry_ui_state_bind_text_template #764 / Native server SIGSEGV at jwt.sign(...) (jsonwebtoken) after resumed async-step body — follow-up to #859 #915 / tui-hang).

Remaining (reported, not chained)

• The effect barrel (import { Effect } from "effect") hits a further
  value is not a function (pulls in more than Schema).
• Renamed VAR/const namespace members (M.renamedConst) remain a separate
  pre-existing gap (no longer link-errors, but returns garbage).

Refs #1758, #1785, #1772, #1791.