[Feature]: Add data/profile.example.json so users see the schema

[Aditya-00a]

What problem does this solve?

Users who skip python setup.py profile (or who want to hand-edit later) need to know the exact JSON schema for data/profile.json and data/master-resume.json. Right now they have to read Pydantic models in backend/models/schemas.py.

What to do

Add two example files:

• agent/data/profile.example.json — a complete, fictional sample profile with every field populated
• agent/data/master-resume.example.json — same, with a fake person's experience history

Use a clearly fake identity (e.g. "Jane Doe", "jane@example.com", "Acme University", "BigCo Inc.") so nobody mistakes it for a real person.

Proposed solution

Acceptance

• Both files exist and parse as valid JSON
• All fields the wizard writes are present
• README / QUICKSTART has a one-line note: "To skip the wizard, copy data/profile.example.json to data/profile.json and edit."

Alternatives you considered

No response

Are you up for contributing this?

• Yes, I'd like to send a PR
• Yes, with some guidance
• No, just suggesting