Update v6.6 change log in prep to cut v6.6.2 patch

[masih]

Systematic changelog re-generation.

[github-actions]

The latest Buf updates on your PR. Results from workflow Buf / buf (pull_request).

Build	Format	Lint	Breaking	Updated (UTC)
✅ passed	✅ passed	✅ passed	✅ passed	Aug 19, 2026, 5:40 PM

[cursor]

PR Summary

Low Risk
Documentation-only changelog edit with no runtime or API impact.

Overview
Updates CHANGELOG.md only: the ## v6.6 sei-chain list gains nine PR bullets (newest first) so the section matches systematic changelog regeneration ahead of v6.6.2.

New entries cover backports and release prep such as SS DB context cancellation (#3957), default Sei Labs bootstrap seeds (#3954), configurable inbound P2P accept rate (#3939), LCD pagination restore (#3873), goreleaser / libstdc++ cleanup (#3880, #3848), and v6.6.1 version/changelog bumps (#3878, #3877). Unreleased and older v6.6 lines are unchanged.

^{Reviewed by Cursor Bugbot for commit de464d8. Bugbot is set up for automated code reviews on this repo. Configure here.}

[seidroid]

Successfully created backport PR for release/v6.6:

• Backport release/v6.6: Update v6.6 change log in prep to cut v6.6.2 patch #3965

[seidroid]

The automated review did not complete; see the failing AI Review check for details.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 57.52%. Comparing base (eca98ea) to head (de464d8).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3964      +/-   ##
==========================================
- Coverage   58.62%   57.52%   -1.11%     
==========================================
  Files        2323     2225      -98     
  Lines      198626   187344   -11282     
==========================================
- Hits       116440   107765    -8675     
+ Misses      71426    69712    -1714     
+ Partials    10760     9867     -893     

Flag	Coverage Δ
sei-db	69.80% <ø> (ø)
sei-db-state-db	?

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see 98 files with indirect coverage changes

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