feat: ESM resolver hardening, http loader, dev-mode globals#383

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NathanWalker wants to merge 13 commits into

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feat/hmr-dev-sessions

Commits on Jul 23, 2026

feat: HMR dev-sessions, ESM resolver hardening, dev-mode runtime globals
NathanWalker
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fix: visionos build deprecation
NathanWalker
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feat: HMR robustness and additional tests
NathanWalker
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test: unit test improvements
NathanWalker
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fix(worker): surface worker entry-script load errors to worker.onerror
NathanWalker
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refactor(runtime): key module registries by v8::Isolate, not thread_local
NathanWalker
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refactor(runtime): reduce surface to a mechanism-only dev-loader contract
NathanWalker
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feat(runtime): __NS_DEV__.seedModuleBodies for batch prewarm seeding from the boot archive
NathanWalker
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feat(runtime): harden the HTTP session loader
NathanWalker
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fix(worker): buffer inbound messages until the entry script installs onmessage
NathanWalker
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fix(module): build the optional-module placeholder without string interpolation
NathanWalker
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fix(module): preserve embedded NUL bytes in dev-session module source
NathanWalker
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fix(module): unify IsLikelyOptionalModule and exclude explicit file extensions
NathanWalker
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