feat: add phone number extraction to resume parser [ GSSOC'26 ]

[rudra3007-pro]

Description

Adds extractPhone() to the resume parser that matches common phone
number formats including international prefixes, dashes, dots, spaces,
and parentheses. The extracted value is included as a phone field
in the ParsedResume return value.

Fixes #2985

Pillar

• 🛠️ Other (Bug fix, refactoring, docs)

Visual Preview

N/A — parsing utility, no visual output.

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• I have read the CONTRIBUTING.md file.
• I have tested these changes locally.
• I have run npm run format and npm run lint locally and resolved all errors.
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• I have starred the repo.
• I have made sure that I have only one commit to merge in this PR.
• The SVG output matches the CommitPulse "premium quality" aesthetic standard.
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[github-actions]

🚨 Hey @rudra3007-pro, the CI Pipeline is failing on this PR and it has been marked as status:blocked.

Please fix the issues before this can be reviewed. Here's how:

1. Run checks locally before pushing:

npm run format:check   # Check Prettier formatting
npm run lint           # Run ESLint
npm run typecheck      # TypeScript type check
npm run test           # Run unit tests (Vitest)
npm run build          # Verify production build passes

2. Auto-fix common issues:

npm run format         # Auto-fix formatting with Prettier
npm run lint -- --fix  # Auto-fix lint errors where possible

3. Check the full failure log here:
👉 View CI Run

Once you push a fix and the CI passes, the status:blocked label will be removed automatically. 💪

[github-actions]

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