Claude review: dt-bindings: display: bridge: analogix-dp: Add data-lanes support for endpoint

[Claude Code Review Bot <claude-review@example.com>]

Patch Review

**Status: Looks reasonable, minor comments**

The change from `$ref: /schemas/graph.yaml#/properties/port` to `$ref: /schemas/graph.yaml#/$defs/port-base` on port@1 is correct — `port-base` is needed to allow extending the port with additional endpoint properties, since `port` has `additionalProperties: false`.

The endpoint data-lanes constraint looks correct:
```yaml
endpoint:
  $ref: /schemas/media/video-interfaces.yaml#
  properties:
    data-lanes:
      minItems: 1
      maxItems: 4
      items:
        enum: [ 0, 1, 2, 3 ]
```

**Minor**: Consider adding `unevaluatedProperties: false` on the endpoint node to prevent unvalidated properties from slipping through. Without it, the schema permits any additional properties on the endpoint beyond what `video-interfaces.yaml` and this local schema define.

The cosmetic description reformatting (multi-line to single-line for port@0 and port@1) is fine but unrelated to the functional change — could be split out for clarity, though not worth blocking over.

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