Use anyOf instead of oneOf

[tokebe]

Fix proposed by @colleenXu in 2026-02-19 meeting

[colleenXu]

How I uncovered the issue:

• using Combine classes #544 as a starting point, made a json-schema of Analysis (plus all dependent subschemas)
• example Analysis to adjust and see what validates or doesn't
• plug into https://www.jsonschemavalidator.net/

The validation fails because having both edge_bindings and path_bindings fulfills >1 of the oneOf "required" sub-schemas.

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For solutions:

• only removing line 718 (required: [edge_bindings, path_bindings]) was not sufficient.
• changing to anyOf does what we want:
  • fulfilling >1 "required" sub-schema is now fine (having both types of bindings)
  • don't need line 718