refactor: No longer set timeline event as state event

[krille-chan]

We did this in the past to store the lastEvent but we now have a dedicated slot in our Room JSON structure for the persistent storage.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro Plus

Run ID: d94e9dbd-ad98-4d68-896f-3123c39a03ea

📥 Commits

Reviewing files that changed from the base of the PR and between 8a9a2fa and d391e52.

📒 Files selected for processing (1)

• lib/encryption/encryption.dart

💤 Files with no reviewable changes (1)

• lib/encryption/encryption.dart

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📝 Walkthrough

Walkthrough

The decryptRoomEvent method in the encryption module no longer calls event.room.setState(event) before persisting decrypted event updates. The conditional branch that performed this room state update has been removed, and the method now proceeds directly to database persistence operations.

Changes

Event Decryption

Layer / File(s)	Summary
Remove room state update from event decryption lib/encryption/encryption.dart	The conditional call to event.room.setState(event) executed when updateType != EventUpdateType.history was removed from decryptRoomEvent. Room state is no longer updated at this point during decrypted event handling.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~3 minutes

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title accurately describes the main change: removing the conditional state update call in decryptRoomEvent, which aligns with no longer setting timeline events as state events.
Description check	✅ Passed	The description is directly related to the changeset, explaining the rationale behind removing the state event update by noting a dedicated Room JSON structure now exists for persistent storage.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch krille/no-longer-set-timeline-event-as-state

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 59.27%. Comparing base (8a9a2fa) to head (d391e52).

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #2358   +/-   ##
=======================================
  Coverage   59.26%   59.27%           
=======================================
  Files         161      161           
  Lines       20061    20059    -2     
=======================================
  Hits        11889    11889           
+ Misses       8172     8170    -2     

Files with missing lines	Coverage Δ
lib/encryption/encryption.dart	84.65% <ø> (+0.95%)	⬆️

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