fix: expose server summary() on ServerInterface for v3 documents

[AayushSaini101]

Summary

Fixes #1076 by exposing server.summary() and server.hasSummary() on the
shared ServerInterface, with v3 test coverage.

Problem

AsyncAPI v3 defines an optional summary field on the Server Object, and the
v3 Server model already reads it via CoreModel. However, ServerInterface
did not include summary(), so TypeScript users accessing servers through
document.allServers() did not get proper type support for this method.

Why only ServerInterface needed to change

No changes to the v3 Server class were required because:

• v3 Server extends CoreModel, which already implements hasSummary() and summary()
• Parsing and model behavior already worked at runtime
• The gap was only in the published TypeScript contract (ServerInterface)

Why v2 was not changed

• AsyncAPI v2 Server Object does not include summary (only description, url, protocol, etc.)
• AsyncAPI v3 Server Object does include summary
• Updating the shared interface with required SummaryMixinInterface would force stub methods on v2 Server
• Instead, Partial<SummaryMixinInterface> was used so:
  • v3 servers expose summary() as expected
  • v2 servers are not forced to implement a field that is not in the v2 spec
  • only packages/parser/src/models/server.ts needed a production code change

Changes

• server.ts: extend ServerInterface with Partial<SummaryMixinInterface>
• server.spec.ts (v3): unit tests for .summary() and absent summary
• asyncapi.spec.ts (v3): test allServers() exposes summary
• parse.spec.ts: integration test for v3 allServers().summary()

Test plan

• v3 Server model unit tests pass
• v3 AsyncAPIDocument allServers() test passes
• v3 parse() integration test passes
• TypeScript build passes without v2 changes

[changeset-bot]

⚠️ No Changeset found

Latest commit: 8494b7a

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[princerajpoot20]

@AayushSaini101 the PR has merge conflict. can you have a look at it

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[AayushSaini101]

@AayushSaini101 the PR has merge conflict. can you have a look at it

Done fixed thanks