[Feature] Mock Interview Room — peer-to-peer interview practice

[DaniilSapielkin01]

Description

Add a Mock Interview Room feature that allows users to practice technical
interviews with each other in a peer-to-peer format.

Problem

Currently DevLovers helps developers prepare for interviews through Q&A and
quizzes — but solo practice has limits. There's no way to simulate a real
interview experience with another person.

Proposed Solution

A dedicated "Mock Interview Room" where users can:

• Choose a role: Interviewer or Candidate
• Create a room with a selected topic (JavaScript, React, Python, etc.)
• Share a room link so another user can join
• Add an external meeting link (Google Meet, Zoom, Discord, etc.)
  for the actual video call
• Interviewer sees: questions + answers from DevLovers Q&A
• Candidate sees: only questions, no answers
• This simulates a real interview where only the interviewer
  has the answer key
• Optionally rate the session after it ends (for leaderboard/gamification)

Why This Is Valuable

• Candidates get realistic interview practice beyond solo quizzes
• Aspiring interviewers gain experience conducting technical interviews
• Community grows stronger through peer interaction
• Complements existing Q&A and Quiz features naturally

Acceptance Criteria

• User can create a mock interview room with a topic
• User can select role: Interviewer / Candidate
• Room has a shareable link
• External meeting link can be attached to the room
• Questions from Q&A are available inside the room as reference
• Room expires after session ends
• Interviewer has access to both questions and answers
• Candidate sees questions only — answers are hidden

Additional Notes

This feature does not require building a video call solution —
external links (Meet, Zoom, etc.) handle that part, keeping scope manageable.