feat: add Block-STM configuration support

[mmsqe]

Description

• add block-executor, block-stm-workers and block-stm-pre-estimate
• disable pre-estimate by default to avoid overhead in common case, which is primarily beneficial for high-contention worst-case workloads.
• benchmark erc20-transfer with num_accounts=40000

pre-estimate	top_tps
enable	[5375, 5347.5, 5342.5, 5252, 5032.5]
disable	[6315, 5536.5, 5509.5, 5492.5, 5262]

[codecov]

Codecov Report

❌ Patch coverage is 71.42857% with 10 lines in your changes missing coverage. Please review.
✅ Project coverage is 64.85%. Comparing base (6786515) to head (4eff9b1).
⚠️ Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
simapp/app.go	60.00%	10 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #26208      +/-   ##
==========================================
+ Coverage   64.83%   64.85%   +0.01%     
==========================================
  Files         874      874              
  Lines       57601    57636      +35     
==========================================
+ Hits        37347    37381      +34     
- Misses      20254    20255       +1     

Files with missing lines	Coverage Δ
server/config/config.go	94.11% <100.00%> (+0.43%)	⬆️
server/config/toml.go	81.81% <ø> (ø)
server/start.go	19.29% <100.00%> (+0.45%)	⬆️
simapp/app.go	90.44% <60.00%> (-1.80%)	⬇️

... and 4 files with indirect coverage changes

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.