Start revising the schema compliance checking

[VisLab]

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[Copilot]

Pull request overview

This PR begins a refactor of HED schema compliance checking by moving to a more data-driven validator (domain/range-based) and adding a structured compliance reporting summary, with corresponding test updates and small supporting script/config changes.

Changes:

• Reworked hed/schema/schema_compliance.py to build attribute validators from schema metadata (domain/range) and to attach a ComplianceSummary to the returned issues list.
• Added hed/schema/schema_compliance_summary.py (new) plus additional tests validating summary output and domain/range invariants.
• Updated multiple tests to account for new/expanded compliance checks and adjusted schema loading checks output shape.

Reviewed changes

Copilot reviewed 15 out of 15 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
tests/schema/test_schema_wiki_fatal_errors.py	Updates expected issue count for fatal error test.
tests/schema/test_schema_format_roundtrip.py	Makes duplicate tests assert by error code rather than total issue count.
tests/schema/test_schema_compliance.py	Adds extensive tests for ComplianceSummary and domain/range constraints; updates schema versions under test.
tests/schema/test_schema_attribute_validators.py	Updates deprecatedFrom edge cases (current version allowed; future invalid).
tests/schema/test_hed_schema_io.py	Adjusts expected compliance issue counts and assertions to tolerate additional issue types.
tests/schema/test_hed_schema_group.py	Updates expected warning count for group compliance.
tests/schema/test_hed_schema.py	Updates expected warning count for group compliance.
spec_tests/test_errors.py	Alters spec test runner behavior for schema_tests (currently disables running them).
hed/scripts/check_schema_loading.py	Removes “skipped” from results/summary and updates docstring accordingly.
hed/schema/schema_compliance_summary.py	New: compliance reporting structure and text report output.
hed/schema/schema_compliance_old.py	New: keeps prior compliance implementation (now with summary support).
hed/schema/schema_compliance.py	Main refactor: new domain/range constants, validator building, and summary attachment.
hed/schema/schema_attribute_validators.py	Updates deprecatedFrom validation to allow current (even prerelease) schema version.
hed/schema/hed_schema_entry.py	Ensures subclasses call super().finalize_entry(schema) to clear stale unknown attributes.
.github/dependabot.yml	Fixes GitHub Actions dependabot directory to /.

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