refactor(core): Move WorkflowHooks to core, improve type-safety, and add tests

[netroy]

Summary

Related Linear tickets, Github issues, and Community forum posts

Review / Merge checklist

• PR title and summary are descriptive. (conventions)
• Docs updated or follow-up ticket created.
• Tests included.
• PR Labeled with release/backport (if the PR is an urgent fix that needs to be backported)

[codecov]

Codecov Report

Attention: Patch coverage is 75.98684% with 73 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
packages/cli/src/workflow-runner.ts	57.57%	25 Missing and 3 partials ⚠️
...ecution-lifecycle-hooks/execution-hooks-factory.ts	87.73%	11 Missing and 9 partials ⚠️
packages/cli/src/utils/object-to-error.ts	55.55%	6 Missing and 2 partials ⚠️
packages/core/src/WorkflowExecute.ts	27.27%	8 Missing ⚠️
packages/cli/src/scaling/job-processor.ts	33.33%	4 Missing ⚠️
packages/core/src/TriggersAndPollers.ts	71.42%	2 Missing ⚠️
packages/core/src/index.ts	0.00%	1 Missing ⚠️
...core/src/node-execution-context/execute-context.ts	0.00%	1 Missing ⚠️
.../src/node-execution-context/supply-data-context.ts	50.00%	1 Missing ⚠️

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