docs: fix typos dependancy -> dependency, occured -> occurred

[Vaibhav Srivastava (vaibhav8a)]

Two typo fixes in design docs:

• docs/design/HotReloadDoc.md:24 — dependancy → dependency
• docs/design/dab-validate.md:43 — occured → occurred

Docs only.

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[Copilot]

Pull request overview

This PR makes two documentation-only typo corrections in the design docs, improving spelling accuracy without changing any runtime behavior.

Changes:

• Fixes “dependancy” → “dependency” in HotReloadDoc.md.
• Fixes “occured” → “occurred” in dab-validate.md.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 2 comments.

File	Description
docs/design/HotReloadDoc.md	Corrects “dependancy” to “dependency” in the hot reload design doc.
docs/design/dab-validate.md	Corrects “occured” to “occurred” in the validation design doc.

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