feat[bindings]: expose power level thresholds in corresponding timeline event

[JoFrost]

Hello! This PR exposes power-level thresholds in OtherState::RoomPowerLevels for the FFI timeline.

It includes action requirements such as ban, kick, invite, redact, state_default, events_default, per-event overrides and notifications. This gives FFI clients direct access to the effective power levels of a room, which were previously unavailable.

• Public API changes documented in changelogs (optional)

Signed-off-by:

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 88.93%. Comparing base (d64c990) to head (eb13eee).
⚠️ Report is 38 commits behind head on main.
✅ All tests successful. No failed tests found.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #5931   +/-   ##
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  Coverage   88.93%   88.93%           
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  Files         357      357           
  Lines       99195    99195           
  Branches    99195    99195           
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+ Hits        88221    88223    +2     
+ Misses       6991     6988    -3     
- Partials     3983     3984    +1     

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[codspeed-hq]

Merging this PR will not alter performance

✅ 50 untouched benchmarks

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_{Comparing JoFrost:main (2ff1f66) with main (0053ecb)}

[JoFrost]

Hello @poljar! Quick check on this PR.

I wanted to confirm whether this aligns with the intended API direction, or if you’d prefer to wait for #5937 to be merged and then have this rebased on top of it.
If this approach doesn’t hit the mark, I’m happy to close the PR.

Thanks.

[poljar]

I wanted to confirm whether this aligns with the intended API direction, or if you’d prefer to wait for #5937 to be merged and then have this rebased on top of it.

Yes, let's do that, I don't think there's much blocking #5937 so it should be merged soon™.

[JoFrost]

All done @poljar. I rebased on main, and used what was introduced in #5937 for this PR.

[poljar]

Sorry for the delay, this got rebased over my holidays.

Looks mostly good, I left a couple of nits.

[poljar]

New entries to the top please.

[poljar]

Can we rename this to prevoius_users like the other fields have the previous prefix.

[JoFrost]

No worries. All done, btw @poljar!