Improve error messages for target validation

[DELTA-45-G]

Proposed change

This PR improves localization error messages in nettacker/locale/en.yaml for better clarity and usability.

Changes include:

• Improved error_target message to clearly instruct users to use -t or --targets
• Improved error_target_file message to provide a clearer file-related error description

These changes make CLI error messages more user-friendly and easier to understand for end users.

Type of change

• New core framework functionality
• Bugfix (non-breaking change which fixes an issue)
• Code refactoring without any functionality changes
• New or existing module/payload change
• Documentation/localization improvement
• Test coverage improvement
• Dependency upgrade
• Other improvement (best practice, cleanup, optimization, etc)

Checklist

• I've followed the contributing guidelines
• I have digitally signed all my commits in this PR
• I've run make pre-commit and confirm it didn't generate any warnings/changes
• I've run make test, I confirm all tests passed locally
• I've added/updated any relevant documentation in the docs/ folder
• I've linked this PR with an open issue
• I've tested and verified that my code works as intended and resolves the issue as described
• I have attached screenshots demonstrating my code works as intended
• I've checked all other open PRs to avoid submitting duplicate work
• I confirm that the code and comments in this PR are not direct unreviewed outputs of AI
• I confirm that I am the Sole Responsible Author for every line of code, comment, and design decision

Thanks for contributing to OWASP Nettacker!

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

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Review profile: CHILL

Plan: Pro

Run ID: d817136a-b707-458a-b3d2-d66d7df87962

📥 Commits

Reviewing files that changed from the base of the PR and between f4c1bbf and 3cc22cc.

📒 Files selected for processing (1)

• nettacker/locale/en.yaml

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Summary by CodeRabbit

• Documentation
  • Clarified error message when no scan target is provided and added explicit instructions to use the target flag.
  • Improved wording for target file errors to make file open failures easier to understand.

Walkthrough

Edited three English localization strings in nettacker/locale/en.yaml to clarify target-related error messages and ensure the file ends with a newline.

Changes

Cohort / File(s)	Summary
English localization nettacker/locale/en.yaml	Rewrote error_target to "No target specified" and added -i/--targets instruction; changed error_target_file to "Target file error: cannot open file: {0}"; ensured file ends with a trailing newline (no other message content changes).

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~3 minutes

Suggested reviewers

• arkid15r

🚥 Pre-merge checks | ✅ 3

✅ Passed checks (3 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly summarizes the main change: improving error messages for target validation, which directly aligns with the file changes in nettacker/locale/en.yaml.
Description check	✅ Passed	The description is well-related to the changeset, detailing specific improvements to error messages with clear before-and-after context that matches the file modifications.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

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🧪 Generate unit tests (beta)

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[DELTA-45-G]

Fixed the target flag from -t to -i in the localization file as per the feedback. Verified the output locally.

[pUrGe12]

Looks good now

[securestep9]

@coderabbitai full review

[coderabbitai]

✅ Actions performed

Full review triggered.