feat(ruleset): add v3 channel-parameters validation rule

[q404365631]

What

Adds the v3 counterpart of the existing asyncapi2-channel-parameters rule. The new rule asyncapi3-channel-parameters flags channels that define a parameters object while the address either has no placeholders or is null/empty.

Why

The parser currently accepts a v3 document where a channel defines a parameters object but the address has no placeholders (or is null). See #875.

The AsyncAPI spec requires parameters to map to placeholders in the address — if the address has no placeholders, parameters is redundant and the document is malformed.

The maintainer's hint in #875 was to follow the v2 rule's pattern and adjust the lookup for v3 (where the address is in value.address, not the channel key). This PR does exactly that.

Fixes #875

Changes

• New file packages/parser/src/ruleset/v3/functions/channelParameters.ts: v3 version of the existing channelParameters function. Reads address and parameters from the channel object directly.
• packages/parser/src/ruleset/v3/ruleset.ts: Wired the new rule as asyncapi3-channel-parameters, applied to $.channels.* and $.components.channels.* (mirroring v2's given).

Rule behavior

• If parameters is defined and address is null/empty/has no placeholders → error: "parameters" object is redundant.
• If address has placeholders, mirror the v2 behavior: detect missing and redundant parameters.

Example

This document (from #875) will now fail validation:

channels:
  userSignedup:
    address: user/signedup
    parameters:
      test:
        description: I should get an error...

Note

No test file added yet — happy to follow up with a *.spec.ts test file mirroring the v2 tests if preferred. Wanted to keep the first PR minimal for review.

2 files changed, 78 insertions(+), 4 deletions(-).

[changeset-bot]

🦋 Changeset detected

Latest commit: 7567d29

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
@asyncapi/parser	Patch

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[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

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[princerajpoot20]

the underline issue is part of microgrant program. please read the program guidlines https://github.com/asyncapi/community/blob/master/docs/010-contribution-guidelines/microgrant-program.md. thanks