feat: add $parseResult standard schema result parsing utility.

[igalklebanov]

Hey 👋

closes #1856

This PR introduces $parseResult. It adds an internal StandardSchemaV1Plugin, and reduces the chain to execution methods.

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Project	Deployment	Actions	Updated (UTC)
kysely	Ready	Preview, Comment	Jul 17, 2026 8:47pm

[pkg-pr-new]

• kysely_koa_example

  npm i https://pkg.pr.new/kysely@1940
  

commit: a105432

[github-actions]

⏱️ TypeScript Benchmark Results

⏱️  Benchmark changes detected:

🏌️  kysely.with(cte, qc => qc.updateTable(table))
⛳ Result: 24127 instantiations
🎯 Baseline: 23981 instantiations
📊 Delta: +0.61%

🏌️  kysely.with(cte, qc => qc.deleteFrom(table))
⛳ Result: 20863 instantiations
🎯 Baseline: 20717 instantiations
📊 Delta: +0.70%

🏌️  kyselyAny.with(cte, qc => qc.updateTable(table))
⛳ Result: 23917 instantiations
🎯 Baseline: 23771 instantiations
📊 Delta: +0.61%

🏌️  kyselyAny.with(cte, qc => qc.deleteFrom(table))
⛳ Result: 20653 instantiations
🎯 Baseline: 20507 instantiations
📊 Delta: +0.71%

🏌️  kysely.with(cte, () => updateQuery)
⛳ Result: 24115 instantiations
🎯 Baseline: 23969 instantiations
📊 Delta: +0.61%

🏌️  kysely.with(cte, () => deleteQuery)
⛳ Result: 20851 instantiations
🎯 Baseline: 20705 instantiations
📊 Delta: +0.71%

🏌️  kyselyAny.with(cte, () => updateQuery)
⛳ Result: 23905 instantiations
🎯 Baseline: 23759 instantiations
📊 Delta: +0.61%

🏌️  kyselyAny.with(cte, () => deleteQuery)
⛳ Result: 20641 instantiations
🎯 Baseline: 20495 instantiations
📊 Delta: +0.71%

🏌️  kysely.with(cte, updateQuery)
⛳ Result: 24159 instantiations
🎯 Baseline: 24013 instantiations
📊 Delta: +0.61%

🏌️  kysely.with(cte, deleteQuery)
⛳ Result: 20896 instantiations
🎯 Baseline: 20750 instantiations
📊 Delta: +0.70%

🏌️  kyselyAny.with(cte, updateQuery)
⛳ Result: 23949 instantiations
🎯 Baseline: 23803 instantiations
📊 Delta: +0.61%

🏌️  kyselyAny.with(cte, deleteQuery)
⛳ Result: 20686 instantiations
🎯 Baseline: 20540 instantiations
📊 Delta: +0.71%