Backport release/v6.3: fix(ledger): upgrade ledger-cosmos-go to v1.0.0 for Cosmos app v2.34+ compatibility

[seidroid]

Backport of #2891 to release/v6.3.

[seidroid]

Please cherry-pick the changes locally and resolve any conflicts.

git fetch origin backport-2891-to-release/v6.3
git worktree add --checkout .worktree/backport-2891-to-release/v6.3 backport-2891-to-release/v6.3
cd .worktree/backport-2891-to-release/v6.3
git reset --hard HEAD^
git cherry-pick -x 927626b4adf777316681b7500090e3bdc5a74ebb
git push --force-with-lease

[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	Feb 14, 2026, 12:36 AM

[codecov]

Codecov Report

❌ Patch coverage is 39.28571% with 34 lines in your changes missing coverage. Please review.
✅ Project coverage is 43.43%. Comparing base (476b88d) to head (3def0be).
⚠️ Report is 1 commits behind head on release/v6.3.

Files with missing lines	Patch %	Lines
sei-cosmos/crypto/ledger/ledger_secp256k1.go	30.43%	26 Missing and 6 partials ⚠️
sei-cosmos/crypto/keyring/keyring.go	66.66%	2 Missing ⚠️

❌ Your patch status has failed because the patch coverage (39.28%) is below the target coverage (70.00%). You can increase the patch coverage or adjust the target coverage.
❌ Your project status has failed because the head coverage (38.45%) is below the target coverage (40.00%). You can increase the head coverage or adjust the target coverage.

Additional details and impacted files

@@               Coverage Diff                @@
##           release/v6.3    #2894      +/-   ##
================================================
+ Coverage         42.20%   43.43%   +1.23%     
================================================
  Files              1520     1866     +346     
  Lines            121013   155401   +34388     
================================================
+ Hits              51073    67506   +16433     
- Misses            65496    81846   +16350     
- Partials           4444     6049    +1605     

Flag	Coverage Δ
sei-chain	42.54% <ø> (+<0.01%)	⬆️
sei-cosmos	38.21% <38.18%> (+0.17%)	⬆️
sei-db	45.16% <ø> (-0.09%)	⬇️
sei-ibc-go	55.96% <ø> (ø)
sei-tendermint	47.54% <100.00%> (?)
sei-wasmd	41.54% <ø> (-0.02%)	⬇️
sei-wasmvm	39.88% <ø> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

Files with missing lines	Coverage Δ
...ei-cosmos/crypto/keys/secp256k1/secp256k1_nocgo.go	57.89% <100.00%> (+5.51%)	⬆️
sei-cosmos/crypto/ledger/ledger_mock.go	61.22% <100.00%> (+59.26%)	⬆️
sei-tendermint/crypto/secp256k1/secp256k1.go	73.17% <100.00%> (ø)
sei-cosmos/crypto/keyring/keyring.go	60.59% <66.66%> (+0.39%)	⬆️
sei-cosmos/crypto/ledger/ledger_secp256k1.go	50.37% <30.43%> (+50.37%)	⬆️

... and 353 files with indirect coverage changes

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