GeezerVison

Add CHANGELOG entry for the RFC 6902 JSON Patch feature (v1.3.0)

Fix JsonDiff to recurse by JSON kind instead of exact Java class (#1)

diffValues() refused to recurse into two Maps (or two Lists) unless they
were the exact same concrete Java class, so diffing JsonParser's output
(LinkedHashMap/ArrayList) against a hand-built Map.of(...)/List.of(...) of
identical shape and content - a natural way to express an "expected" value
in a test - collapsed into one coarse CHANGED entry for the whole value
instead of the precise per-key/per-index diff. What actually makes a value
a JSON object or array is that it's a Map or a List at all, not which
implementation produced it, so recursion now keys off instanceof checks.

Add edge-case tests for surrogate pairs, leading zeros, duplicate key…

…s, and top-level scalar/array diffs

Adds 12 new regression tests: surrogate-pair unicode escapes in
JsonParser, rejection of leading-zero-followed-by-digit numbers,
last-occurrence-wins for duplicate object keys, and JsonDiff behavior on
bare top-level scalar/array documents. All existing and new tests pass
(compiled and rerun); no bugs were found.

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