Load the in-repo fixtures once and feed the decoded cases straight into
the parameterized test, instead of collecting IDs and re-reading every
file to find the matching case per ID. PredicateConformanceFixtureCase
gains Identifiable + Sendable (for the arguments) and a
CustomTestStringConvertible extension so each case still displays by id.

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Asserting an exact warning count coupled the fixtures to engine
internals. Match warnings by substring only (count-agnostic); an empty
`contains` now asserts that no warning is emitted, preserving the
"does not warn" cases. The three count-only fixtures gain the
"missing variable" substring they actually emit.

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Drop the khepri single-file plumbing (defaultFixtureURL, fixtureURL,
the no-arg loadCases(), the env var, and the unused fixtureNotFound
error). This PR only runs the in-repo PredicateFixtures/ directory; the
khepri conformance loader lands with its test in the conformance PR.

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Implements the json-logic-js some/all iteration predicates. Operator coverage
is expressed as JSON predicate fixtures (some.json / all.json) run by the
shared fixture runner introduced downstack, replacing hand-written unit tests.

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(cherry picked from commit d11529c)

Implements the json-logic-js min/max operators (variadic flat list, ±∞ for
empty input, NaN propagation for non-numeric operands). Coverage is expressed
as JSON predicate fixtures (min.json / max.json) run by the shared fixture
runner, replacing hand-written unit tests.

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(cherry picked from commit e73eabe)

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# Conflicts:
#	RevenueCat.xcodeproj/project.pbxproj

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# Conflicts:
#	RevenueCat.xcodeproj/project.pbxproj

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# Conflicts:
#	RevenueCat.xcodeproj/project.pbxproj

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# Conflicts:
#	RevenueCat.xcodeproj/project.pbxproj

Expresses the "empty-string key resolves to the whole scope and is not
missing" case as a `{"!!":{"missing":[""]}}` -> false fixture; the string
coercion the other missing fixtures use can't distinguish [] from [""].
Bumps the pinned fixture count to 237. Keeps the corpus in sync with the
purchases-android counterpart.

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Adds fixtures for the empty-segment dot-path splits, var default-vs-null-leaf
behavior, and the non-numeric missing_some threshold (7 new cases), bumping
the pinned count to 244. Also adds the var-null-path Swift test so the
non-fixturizable cases match the purchases-android counterpart. Keeps the
fixture corpus byte-identical across both repos.

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…-logic-iteration-operators

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# Conflicts:
#	Tests/RulesEngineInternalTests/PredicateFixtureTests.swift

…json-logic-min-max-operators

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# Conflicts:
#	Tests/RulesEngineInternalTests/PredicateFixtureTests.swift

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…json-logic-min-max-operators

- Rename the object-array some/all fixtures to describe behavior instead
  of referencing the khepri oracle
- Add fixtures for literal predicates and non-boolean truthy predicate
  results
- Drop the unused opName parameter from parseIterationArgs and return an
  optional items list so a non-array source is distinguishable from an
  empty one
- Bump pinned fixture count to 271

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Place operator docs on each op instead of duplicating at the type level;
drop "not vacuous truth" wording.

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…-logic-iteration-operators

…erators' into pallares/json-logic-min-max-operators

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# Conflicts:
#	Tests/RulesEngineInternalTests/PredicateFixtureTests.swift

…teration-operators

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# Conflicts:
#	Tests/RulesEngineInternalTests/PredicateFixtureTests.swift

Label each operator grouping in Operators.dispatch per PR review feedback.

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Rename the all-match fixture and add cases where only the first or only
the middle item matches, addressing PR review feedback that the existing
some coverage was order dependent.

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khepri guards all with notEmpty, so it returns false for an empty array
like json-logic-js; drop the inaccurate claim that khepri returns true.

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…teration-operators

…erators' into pallares/json-logic-min-max-operators

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# Conflicts:
#	Tests/RulesEngineInternalTests/PredicateFixtureTests.swift

Remove the duplicate WorkflowsCacheTests.swift PBXFileReference introduced
during a merge, and add a dedicated "Min and max" grouping comment so the
min/max cases are no longer lumped under arithmetic.

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Replace division-by-zero workarounds ({"/": [-10,0]} / {"/": [10,0]}) with
self-documenting {"var": "±Infinity"} references. The conformance harness now
seeds reservedConstants (±Infinity) into every fixture's variable scope;
these exist only in the test harness and never touch the production engine.
NaN fixtures still use x != x.

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Bring branch up to date after min/max squash-merge so PR #6936 shows only infinity fixture changes.

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