Enable toggleMove in base model; fix fuzz utils

[dannimad]

This PR contains a few non related changes:

• Fixing TrackableSharedArray tracking of available entryIds. If other operations besides insert and move happened, we didn't track such changes in insertIds and moveIds sets. Now doing the corresponding operations to have correct list of available entryIds.
• Adding value fields to fuzz operations for better debugging, since some operations are not descriptive (based on entryIds)
• Enable toggleMove on base model and consolidate array fuzz tests to one suite were everything is enabled (rollback/ stashing)
• Bug fix: stashing move ops were adding one to the incorrect liveEntry (new entry id instead of old one as move op does)
• Bug fix: move op generator was choosing a different entryId among moveIds that didn't correspond to the move op format (it's supposed to be [oldEntry, newEntry]).
• Bug fix: Do not process remote toggle moves if moved element was deleted

TODO: being able to toggle back from remove items.

[Copilot]

Pull Request Overview

This PR fixes several bugs in the SharedArray fuzz testing infrastructure and enables toggleMove operations in the base model. The changes primarily focus on improving tracking of available entry IDs for operations and fixing bugs in operation handling.

• Fix TrackableSharedArray to properly track available entry IDs across all operation types (insert, delete, move, toggle, toggleMove)
• Add value fields to fuzz operations for better debugging capabilities
• Enable toggle and toggleMove operations in the base model and consolidate array fuzz tests into a single comprehensive suite

Reviewed Changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated 1 comment.

File	Description
fuzzUtils.ts	Fixes entry ID tracking bugs, adds value fields to operations, and enables toggle operations
arrayFuzzTests.spec.ts	Consolidates multiple fuzz test suites into a single comprehensive test
array.rollback.spec.ts	Adds test coverage for toggle and toggleMove rollback operations
sharedArray.ts	Implements missing toggle and toggleMove rollback functionality and fixes move operation stashing bug

Comments suppressed due to low confidence (1)

packages/dds/legacy-dds/src/array/sharedArray.ts:1

• The moveIds mapping is inconsistent. Line 151 sets moveIds.set(op.changedToEntryId, op.entryId) but this should be moveIds.set(op.entryId, op.changedToEntryId) to maintain the correct old->new mapping convention used elsewhere in the code.

/*!

[anthony-murphy]

i wonder if we can simplify this, potentially in a follow up, and just keep a single set of ids, and randomly try operations, or only keep track of ids not in sharedarray.get, so basically removed ids. i suggest this, as i'm a little worried about the stress test becoming over structured, which can negatively affect coverage. Stress is especially good for catching hard to predict scenarios, and over-structuring stress can reduce its ability to find those hard to predict scenarios.

[anthony-murphy]

this also seems related to the todo you have in the pr description

[dannimad]

I agree. And precisely this is related to the todo.