chore: remove unnecessary embed imports

[leaanthony]

Description

Removes 69 unused _ "embed" imports across the v3 codebase:

• 53 files where _ "embed" was entirely unused (no //go:embed directive and no embed.FS usage)
• 16 files where _ "embed" was redundant because a named "embed" import already exists in the same file

The _ "embed" blank import is a side-effect import that enables //go:embed directives. When no such directive exists in the file, the import serves no purpose and can be safely removed.

Fixes #5140

Type of change

• Bug fix (non-breaking change which fixes an issue)
• Chore/cleanup

How Has This Been Tested?

• Verified no empty import blocks remain after removal
• Spot-checked files in both categories to confirm correctness

Checklist:

• My code follows the general coding style of this project
• My changes generate no new warnings

[coderabbitai]

Important

Review skipped

Draft detected.

Please check the settings in the CodeRabbit UI or the .coderabbit.yaml file in this repository. To trigger a single review, invoke the @coderabbitai review command.

⚙️ Run configuration

Configuration used: Path: .coderabbit.yaml

Review profile: CHILL

Plan: Pro

Run ID: 61869830-de27-4965-8bf4-5ad8f517941f

You can disable this status message by setting the reviews.review_status to false in the CodeRabbit configuration file.

Use the checkbox below for a quick retry:

• 🔍 Trigger review

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch fix/5140-remove-unnecessary-embed-imports

---

Thanks for using CodeRabbit! It's free for OSS, and your support helps us grow. If you like it, consider giving us a shout-out.

❤️ Share

• X
• Mastodon
• Reddit
• LinkedIn

_{Comment @coderabbitai help to get the list of available commands and usage tips.}