feat(consensus): add moderator

[Mododo]

This is an arch review for the moderator core.
There will be another PR to bind existing code and make use of new component.

Pull Request Checklist

NODE CONFIGURATION MODEL CHANGES

Yes: added ban config and journal storage duration (with defaults)

BLOCKCHAIN CONFIGURATION MODEL CHANGES

None

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COMPATIBILITY

Full. Added new column families in mempool db

SPECIAL DEPLOYMENT ACTIONS

Not Required

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PERFORMANCE IMPACT

No impact expected

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TESTS

Unit Tests

Added some tests for basic units

Network Tests

No coverage

Manual Tests

transfers-30k, simulator

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Notes/Additional Comments:

[github-actions]

🧪 Network Tests

To run network tests for this PR, use:

gh workflow run network-tests.yml -f pr_number=992

Available test options:

• Run all tests: gh workflow run network-tests.yml -f pr_number=992
• Run specific test: gh workflow run network-tests.yml -f pr_number=992 -f test_selection=ping-pong

Test types: destroyable, ping-pong, one-to-many-internal-messages, fq-deploy, nft-index, persistent-sync

Results will be posted as workflow runs in the Actions tab.

[codecov]

Codecov Report

❌ Patch coverage is 24.76489% with 960 lines in your changes missing coverage. Please review.
✅ Project coverage is 45.90%. Comparing base (bb2d3cc) to head (8b23e2e).

Files with missing lines	Patch %	Lines
consensus/src/moderator/impl_.rs	3.42%	141 Missing ⚠️
consensus/src/moderator/ban/core.rs	0.00%	109 Missing ⚠️
consensus/src/moderator/journal/event.rs	0.00%	109 Missing ⚠️
consensus/src/moderator/ban/cache.rs	45.31%	96 Missing and 9 partials ⚠️
consensus/src/storage/journal_store.rs	0.00%	73 Missing ⚠️
consensus/src/moderator/journal/item.rs	0.00%	61 Missing ⚠️
consensus/src/intercom/peer_schedule/impl_.rs	0.00%	59 Missing ⚠️
consensus/src/moderator/ban/state.rs	0.00%	59 Missing ⚠️
consensus/src/storage/db.rs	0.00%	54 Missing ⚠️
consensus/src/moderator/journal/batch.rs	0.00%	49 Missing ⚠️
... and 14 more

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #992      +/-   ##
==========================================
- Coverage   46.27%   45.90%   -0.38%     
==========================================
  Files         360      374      +14     
  Lines       62584    63818    +1234     
  Branches    62584    63818    +1234     
==========================================
+ Hits        28961    29293     +332     
- Misses      32108    32978     +870     
- Partials     1515     1547      +32     

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