chore: Clean up HIP-423 loose ends

[tinker-michaelj]

Description:

• Refactors ScheduleService state to a block stream-friendly representation that avoids O(n^2) footprint for updating a second n times.
• Adds expiry validation and response codes.
• Implements ingest throttle on the number of transactions scheduling.maxTxnPerSec=100 that can be scheduled for a single second.
• Implements consensus throttling where the scheduled capacity of a single second is set relative to total network capacity by the scheduling.schedulableCapacityFraction=1:10 property.
  • Reuses app's consensus throttling strategy by adding a Throttle.Factory to the AppContext.

[codecov]

Codecov Report

Attention: Patch coverage is 83.56164% with 84 lines in your changes missing coverage. Please review.

Project coverage is 63.59%. Comparing base (dac374c) to head (54bdb02).

Files with missing lines	Patch %	Lines
...dera/node/app/workflows/handle/HandleWorkflow.java	79.09%	14 Missing and 9 partials ⚠️
...rvice/schedule/impl/WritableScheduleStoreImpl.java	79.68%	12 Missing and 1 partial ⚠️
...ra/node/app/blocks/impl/KVStateChangeListener.java	0.00%	12 Missing ⚠️
.../hedera/node/app/throttle/ThrottleAccumulator.java	76.00%	8 Missing and 4 partials ⚠️
...app/service/schedule/impl/ScheduleServiceImpl.java	87.01%	5 Missing and 5 partials ⚠️
...ice/token/impl/handlers/FinalizeRecordHandler.java	14.28%	6 Missing ⚠️
...-app/src/main/java/com/hedera/node/app/Hedera.java	78.57%	2 Missing and 1 partial ⚠️
...app/workflows/standalone/TransactionExecutors.java	76.92%	3 Missing ⚠️
.../node/app/workflows/prehandle/PreHandleResult.java	33.33%	1 Missing and 1 partial ⚠️

Additional details and impacted files

@@                               Coverage Diff                                @@
##             15055-POC-long-term-scheduled-transactions   #16734      +/-   ##
================================================================================
+ Coverage                                         63.41%   63.59%   +0.17%     
- Complexity                                        20316    20400      +84     
================================================================================
  Files                                              2545     2547       +2     
  Lines                                             94666    94887     +221     
  Branches                                           9887     9916      +29     
================================================================================
+ Hits                                              60037    60344     +307     
+ Misses                                            31008    30923      -85     
+ Partials                                           3621     3620       -1     

Files with missing lines	Coverage Δ
.../utils/sysfiles/domain/throttling/ScaleFactor.java	100.00% <100.00%> (ø)
...ce/addressbook/impl/helpers/AddressBookHelper.java	55.17% <ø> (ø)
.../main/java/com/hedera/node/app/spi/AppContext.java	33.33% <ø> (ø)
...com/hedera/node/app/blocks/BlockStreamManager.java	100.00% <ø> (ø)
...om/hedera/node/app/blocks/impl/BlockImplUtils.java	79.46% <100.00%> (+0.37%)	⬆️
...a/node/app/blocks/impl/BlockStreamManagerImpl.java	94.88% <100.00%> (+0.10%)	⬆️
...e/app/blocks/impl/BoundaryStateChangeListener.java	63.95% <100.00%> (+1.30%)	⬆️
...ode/app/blocks/schemas/V0560BlockStreamSchema.java	100.00% <100.00%> (ø)
...a/com/hedera/node/app/services/AppContextImpl.java	100.00% <ø> (ø)
...a/com/hedera/node/app/store/ServiceApiFactory.java	93.33% <100.00%> (ø)
... and 26 more

... and 32 files with indirect coverage changes

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[codacy-production]

Coverage summary from Codacy

See diff coverage on Codacy

Coverage variation	Diff coverage
✅ +0.17% (target: -1.00%)	✅ 87.67%

Coverage variation details

	Coverable lines	Covered lines	Coverage
Common ancestor commit (dac374c)	97431	63469	65.14%
Head commit (7923878)	97650 (+219)	63773 (+304)	65.31% (+0.17%)

Coverage variation is the difference between the coverage for the head and common ancestor commits of the pull request branch: <coverage of head commit> - <coverage of common ancestor commit>

Diff coverage details

	Coverable lines	Covered lines	Diff coverage
Pull request (#16734)	511	448	87.67%

Diff coverage is the percentage of lines that are covered by tests out of the coverable lines that the pull request added or modified: <covered lines added or modified>/<coverable lines added or modified> * 100%

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