Migrate transaction embedding proto types to Go types

[pdrobnjak]

Describe your changes and provide context

1st step as described in description of #2534.

Couple of points:

• We have not entirely removed TxResult as it is an actual wire type, it is not only used on the artificial ABCI boundary but as a storage wire type as well: [1.] [2.]
• We have not yet tackled TxRecord as it is embedded in ResponsePrepareProposal this will be done in a separate PR.

Testing performed to validate your change

[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	Nov 7, 2025, 3:03 PM

[codecov]

Codecov Report

❌ Patch coverage is 40.00000% with 60 lines in your changes missing coverage. Please review.
✅ Project coverage is 43.35%. Comparing base (2d58dad) to head (36101cd).
⚠️ Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
...dermint/internal/state/indexer/mocks/event_sink.go	0.00%	12 Missing ⚠️
sei-tendermint/internal/state/mocks/event_sink.go	0.00%	10 Missing ⚠️
sei-tendermint/abci/client/mocks/client.go	0.00%	8 Missing ⚠️
sei-tendermint/abci/types/mocks/application.go	0.00%	8 Missing ⚠️
...-tendermint/internal/state/indexer/tx/null/null.go	0.00%	4 Missing ⚠️
sei-cosmos/baseapp/abci.go	50.00%	3 Missing ⚠️
...endermint/internal/proxy/mocks/app_conn_mempool.go	0.00%	3 Missing ⚠️
sei-tendermint/abci/types/application.go	0.00%	2 Missing ⚠️
sei-tendermint/internal/proxy/client.go	0.00%	2 Missing ⚠️
sei-tendermint/rpc/client/mock/abci.go	33.33%	2 Missing ⚠️
... and 6 more

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2533      +/-   ##
==========================================
+ Coverage   43.34%   43.35%   +0.01%     
==========================================
  Files        1576     1576              
  Lines      137822   137816       -6     
==========================================
+ Hits        59735    59754      +19     
+ Misses      72651    72640      -11     
+ Partials     5436     5422      -14     

Flag	Coverage Δ
sei-chain	31.23% <66.66%> (-0.02%)	⬇️
sei-cosmos	52.55% <66.66%> (-0.01%)	⬇️
sei-db	47.60% <ø> (ø)
sei-tendermint	48.71% <35.29%> (+0.07%)	⬆️
sei-wasmd	46.27% <ø> (+0.02%)	⬆️
sei-wasmvm	40.37% <ø> (ø)

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

Files with missing lines	Coverage Δ
app/app.go	73.30% <100.00%> (ø)
sei-cosmos/server/mock/app.go	78.37% <100.00%> (ø)
sei-cosmos/tasks/scheduler.go	92.90% <100.00%> (-0.71%)	⬇️
sei-cosmos/x/genutil/gentx.go	75.92% <100.00%> (ø)
sei-tendermint/abci/types/messages.go	7.21% <ø> (+0.42%)	⬆️
sei-tendermint/abci/types/types.go	21.34% <ø> (ø)
sei-tendermint/internal/state/execution.go	61.47% <100.00%> (ø)
sei-tendermint/internal/state/indexer/indexer.go	100.00% <100.00%> (ø)
...ndermint/internal/state/indexer/indexer_service.go	78.26% <100.00%> (ø)
...ei-tendermint/internal/state/indexer/sink/kv/kv.go	100.00% <100.00%> (ø)
... and 18 more

... and 17 files with indirect coverage changes

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
• 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.

[pompon0]

reserve ids and names

[pdrobnjak]

212210c