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perf: reduce build memory and time - #1156

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perf/memory-usage

Commits on Oct 11, 2026
- perf(core): load Shiki grammars on demand
  ovflowd
  committed
  496f63d
- perf(react): embed highlighted code as static markup
  ovflowd
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  643021c
- perf(react): render `all.html` in the worker pool, unminified
  ovflowd
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  a911c88
- perf: flatten the generated code and the rendered HTML
  ovflowd
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  1e926c9
- perf: keep worker-only code off the main thread
  ovflowd
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  e8f323f
- perf(react): keep the `#theme/config` source off the rendering threads
  ovflowd
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  78404bc
- feat(core): run a module in a child process with `createChildProcess`
  ovflowd
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  7e8f766
- perf(react): run the default bundler in a child process
  ovflowd
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  7898a2d
- docs(core): describe the thread ceiling without Shiki's grammars
  ovflowd
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  6f844e8
- perf(core): limit each worker's heap, by default to 512MB
  ovflowd
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  c14e15a
- perf(core): end idle workers after 500ms instead of a second
  ovflowd
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  41f9ffb
- perf(react): highlight each type once per thread
  ovflowd
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  9bfd73f
- docs: note that Node.js 26 keeps the memory of ended workers
  ovflowd
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  3d2ab5c
- chore: add a changeset for the build memory work
  ovflowd
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  d693bee