docs: add changelog for 0.0.5

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Summary

• Add CHANGELOG entry for version 0.0.5

Summary by CodeRabbit

• New Features
  • Enhanced event tracking with sourceType field for session start and push notification events in version 0.0.5.

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Walkthrough

A new version entry [0.0.5] is added to the changelog dated 2026-02-13, documenting the addition of a sourceType field to event tracking for SDK-internal events: SESSION_START, PUSH_NOTIFICATION_RECEIVED, and PUSH_NOTIFICATION_TAPPED.

Changes

Cohort / File(s)	Summary
Changelog Update CHANGELOG.md	Adds version 0.0.5 entry documenting addition of sourceType field to event tracking for SDK-internal events (SESSION_START, PUSH_NOTIFICATION_RECEIVED, PUSH_NOTIFICATION_TAPPED).

🚥 Pre-merge checks | ✅ 4

✅ Passed checks (4 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title directly summarizes the main change: adding a changelog entry for version 0.0.5. It is concise, clear, and accurately reflects the changeset content.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Merge Conflict Detection	✅ Passed	✅ No merge conflicts detected when merging into main

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✨ Finishing touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment
• Commit unit tests in branch add-changelog

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