chore(rslib): upgrade examples to Rslib v1

[elecmonkey]

Summary

• upgrade @rslib/core to ^1.0.0 across all Rslib examples
• update the Rstest Rslib adapter example to use Rslib v1
• migrate the Web Worker example to Rslib v1's built-in worker handling
• update the pnpm lockfile

Test Plan

• pnpm run build:rslib
• pnpm --filter "./rslib/**" --if-present --stream test
• pnpm --filter "./rstest/rslib-adapter" build
• pnpm --filter "./rstest/rslib-adapter" test
• git diff --check

[elecmonkey]

@codex review

[chatgpt-codex-connector]

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