refactor: packet_commitments and packet_acknowledgements return PacketState

[rnbguy]

Closes: #927

Description

This PR refactors QueryContext::packet_commitments and QueryContext::packet_acknowledgements to return PacketStates directly.

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PR author checklist:

• Added changelog entry, using unclog.
• Added tests.
• Linked to GitHub issue.
• Updated code comments and documentation (e.g., docs/).
• Tagged one reviewer who will be the one responsible for shepherding this PR.

Reviewer checklist:

• Reviewed Files changed in the GitHub PR explorer.
• Manually tested (in case integration/unit/mock tests are absent).

[codecov]

Codecov Report

Attention: 52 lines in your changes are missing coverage. Please review.

Comparison is base (476937b) 67.56% compared to head (6694374) 67.42%.
Report is 2 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #928      +/-   ##
==========================================
- Coverage   67.56%   67.42%   -0.14%     
==========================================
  Files         131      130       -1     
  Lines       16283    16316      +33     
==========================================
  Hits        11001    11001              
- Misses       5282     5315      +33     

Files	Coverage Δ
crates/ibc-query/src/core/channel/query.rs	0.00% <0.00%> (ø)
crates/ibc/src/core/ics04_channel/packet.rs	36.74% <0.00%> (-10.57%)	⬇️

... and 7 files with indirect coverage changes

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[Farhad-Shabani]

Just add a unclog + corresponding PR in basecoin, then good to go. 🙏

[rnbguy]

Added the changelog entry for this. Once merged, I will update the dependency rev on basecoin-rs PR.