feat: Highest node id in state

[derektriley]

Description:
This PR introduces a new singleton state to track the highest node ID ever used. The change includes:

• Adding a singleton state definition for the highest node ID.
• Initializing the highest node ID during migration based on the current number of nodes.
• Removing nodes that are marked as deleted after network upgrade.

Related issue(s):
Fixes #18855

Notes for reviewer:
Since the new singleton state is part of EntityIdStore, a big part of the changes are just mocking or initializing the new singleton for many unit tests.

Checklist

• Documented (Code comments, README, etc.)
• Tested (unit, integration, etc.)

[lfdt-bot]

✅ Snyk checks have passed. No issues have been found so far.

Status	Scanner	Critical	High	Medium	Low	Total (0)
✅	Open Source Security	0	0	0	0	0 issues

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[codecov]

Codecov Report

❌ Patch coverage is 86.91589% with 14 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
...dera/node/app/workflows/handle/HandleWorkflow.java	0.00%	11 Missing ⚠️
...a/node/app/hapi/utils/blocks/BlockStreamUtils.java	0.00%	2 Missing ⚠️
...app/service/entityid/impl/NodeIdGeneratorImpl.java	80.00%	1 Missing ⚠️

@@             Coverage Diff              @@
##               main   #21861      +/-   ##
============================================
- Coverage     78.28%   78.27%   -0.01%     
- Complexity    11656    11671      +15     
============================================
  Files          2461     2463       +2     
  Lines         92958    93008      +50     
  Branches       9965     9969       +4     
============================================
+ Hits          72769    72799      +30     
- Misses        16506    16523      +17     
- Partials       3683     3686       +3     

Files with missing lines	Coverage Δ	Complexity Δ
...ervice/addressbook/impl/ReadableNodeStoreImpl.java	97.14% <100.00%> (ø)	11.00 <2.00> (ø)
...pp/service/addressbook/impl/WritableNodeStore.java	100.00% <100.00%> (ø)	6.00 <2.00> (+1.00)
...e/addressbook/impl/handlers/NodeCreateHandler.java	98.68% <100.00%> (+0.29%)	15.00 <3.00> (+6.00)
...m/hedera/node/app/spi/workflows/HandleContext.java	92.30% <100.00%> (+0.20%)	0.00 <0.00> (ø)
...e/app/blocks/impl/BoundaryStateChangeListener.java	92.17% <100.00%> (+0.13%)	0.00 <0.00> (ø)
...ra/node/app/hints/impl/ReadableHintsStoreImpl.java	84.74% <100.00%> (ø)	0.00 <0.00> (ø)
...ra/node/app/hints/impl/WritableHintsStoreImpl.java	88.72% <100.00%> (ø)	0.00 <0.00> (ø)
...edera/node/app/store/ReadableStoreFactoryImpl.java	84.74% <100.00%> (+1.41%)	0.00 <0.00> (ø)
...om/hedera/node/app/store/WritableStoreFactory.java	81.25% <100.00%> (ø)	0.00 <0.00> (ø)
...de/app/workflows/handle/DispatchHandleContext.java	90.79% <100.00%> (+0.11%)	0.00 <0.00> (ø)
... and 14 more

... and 11 files with indirect coverage changes

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[codacy-production]

Coverage summary from Codacy

See diff coverage on Codacy

Coverage variation	Diff coverage
✅ -0.01% (target: -1.00%)	✅ 86.92%

Coverage variation details

	Coverable lines	Covered lines	Coverage
Common ancestor commit (1b4bbb3)	92861	76404	82.28%
Head commit (b646f90)	92911 (+50)	76437 (+33)	82.27% (-0.01%)

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 (#21861)	107	93	86.92%

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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[thenswan]

hapi/hedera-protobuf-java-api/src/main/proto/platform/state/virtual_map_state.proto LGTM, just a couple of nits

[petreze]

LG 👍