Add unique runID to SuiteRunContext for test suite execution tracking

[snytkine]

Description

Add a unique runID identifier to SuiteRunContext that is generated when each new instance is created. This runID will uniquely identify a specific test suite execution, enabling execution tracking, logging correlation, and per-run state management.

Requirements

• Add private final field runID of type String to SuiteRunContext
• Generate a unique value at the moment the SuiteRunContext instance is created
• Value must be immutable (cannot be changed after initialization)
• Value must be thread-safe
• Provide a getter method to access the runID
• Each new SuiteRunContext instance must have a different runID

Acceptance Criteria

• SuiteRunContext has a private final runID field of type String
• Getter method (e.g., getRunID()) returns the runID value
• runID is generated automatically in the constructor
• Field is immutable (final keyword prevents reassignment)
• Thread-safety is guaranteed (final field is inherently thread-safe)
• Unit tests verify unique runIDs across multiple instances
• Javadoc documents the runID field and getter method
• All constructor calls remain functional

Technical Notes

• Consider using UUID.randomUUID().toString() for generating unique IDs
• Alternative: timestamp-based with a counter or random component
• The runID should be deterministic per instance but unique across instances
• Consider whether the runID should be included in test execution logs/reports