Implement basic session ID tracking

[vasyafomiuk]

Description

Add logic to generate a unique session ID each time the Coding Agent launches, persist it across re-launches, and log session start/stop events to establish a framework for future usage analytics.

Technical Requirements

• Generate a UUIDv4 session ID on first launch.
• Persist the session ID to a durable store (e.g., config file).
• Emit start and stop events with timestamp and session ID.
• Prepare a mechanism to reset session tracking for debugging/testing.

Background Context

Meeting Source: Discussion on July 23, 2025
Project Context: coding-agent - The team aims to improve telemetry for future analytics.

Acceptance Criteria

• Consistent session ID persists across restarts.
• Events logged to telemetry or console output for now.
• Reset function clears stored ID and creates new on next launch.

Dependencies & Blockers

• None identified.

Additional Notes

Automatically generated from meeting discussion on 2025-07-23