Extract duplicated include-fragment check into private method

[Copilot]

• Extract duplicated include-fragment check into a private method #isIncludeFragment()
• Replace all 4 occurrences with the new method
• Validate changes with linter (ESLint passed)
• Run code review (no issues found)
• Run security checks (no vulnerabilities found)
• Remove unintended package-lock.json changes

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[changeset-bot]

⚠️ No Changeset found

Latest commit: 4decb85

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[francinelucca]

@copilot remove package-lock.json changes

[Copilot]

@copilot remove package-lock.json changes

Done! Removed package-lock.json changes in commit 4decb85.