[AI-FSSDK] [TESTING] do not review

[jaeopt]

Summary

• Skip ODP identify event dispatch when only a single identifier is provided (e.g., just fs_user_id)
• Send ODP identify event only when 2+ valid (non-null, non-empty) identifiers exist
• Propagate identifiers as dict[str, str] through the full identify_user call chain instead of a plain user_id string

Changes

Production code:

• OdpEventManager.identify_user — accepts identifiers: dict[str, str] and passes directly to send_event
• OdpManager.identify_user — accepts identifiers: dict[str, str], filters empty values, checks count >= 2 before forwarding
• Optimizely._identify_user — accepts and forwards identifiers: dict[str, str]
• OptimizelyUserContext.__init__ — constructs identifiers map from user_id and passes to _identify_user

Tests updated:

• test_odp_manager.py — replaced old single-string tests with new dict-based tests covering: single identifier skipped, empty values not counted, multiple identifiers sent, ODP disabled/not-integrated preserved
• test_user_context.py — updated assertions to expect identifiers dict
• test_optimizely.py — updated assertions to expect identifiers dict

Jira

FSSDK-12721

QA Summary

• Iteration: 1/5
• ruff: PASS
• mypy: PASS (11 pre-existing errors, 0 new)
• pytest: 955/955 PASS