Fix ESLint semicolon violations in metadataMatching.ts

[Copilot]

Related JIRA Ticket:

https://topcoder.atlassian.net/browse/

What's in this PR?

Removed semicolons from metadataMatching.ts to comply with the project's ESLint semi: never rule. The previous security fix introduced 5 semicolons that violated the codebase style convention.

Changes

• Removed semicolons from constant declarations and chained method calls in the findMetadataPhaseMatch function (lines 116-122)
• No functional changes to the regex escaping logic introduced in the security fix

// Before (with semicolons - ESLint error)
const WORDSEP_PLACEHOLDER = '__WORDSEP__';
const sepPattern = /[ \-_]+/g;

// After (no semicolons - ESLint compliant)
const WORDSEP_PLACEHOLDER = '__WORDSEP__'
const sepPattern = /[ \-_]+/g

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