feat: add project_label stream

[grawinkel]

Summary

Adds support for syncing project labels from Linear, following the existing pattern used by issue_label and other streams.

Linear's export API supports the projectlabel entity type, but the connector currently doesn't expose it as a stream. This PR adds it.

Changes

File	Change
src/client/types.ts	Add ProjectLabel interface
src/client/LinearClient.ts	Add projectLabels() method + "projectlabel" entity type
src/streams/projectLabel.ts	New stream class (same pattern as issueLabel.ts)
resources/schemas/projectLabel.json	JSON schema for ProjectLabel
src/index.ts	Register ProjectLabel stream

Schema

The ProjectLabel model mirrors IssueLabel but without teamId and organizationId:

interface ProjectLabel {
  id?: string;
  createdAt?: string;
  updatedAt?: string;
  archivedAt?: null | string;
  name?: string;
  description?: null | string;
  color?: string;
  creatorId?: null | string;
}

Context

We use this connector to sync Linear data into BigQuery via Airbyte. We need project_label to join project labels with projects for reporting and analytics. The Linear GraphQL API exposes projectLabels as a top-level query, and the export API should support projectlabel as an entity type.

[Copilot]

Pull request overview

Adds a new Airbyte stream to sync project labels from Linear’s export API, following the existing stream/client/schema patterns used for other Linear entities.

Changes:

• Add ProjectLabel model type and LinearClient.projectLabels() fetch method (plus projectlabel entity type).
• Introduce ProjectLabel stream and its JSON schema.
• Register the new stream in the source so it appears in discovery and can be synced.

Reviewed changes

Copilot reviewed 5 out of 5 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
src/streams/projectLabel.ts	New stream implementation to read projectlabel entities via LinearClient.
src/index.ts	Registers ProjectLabel stream in the source’s stream list.
src/client/types.ts	Adds ProjectLabel interface used by client/stream typing.
src/client/LinearClient.ts	Adds projectlabel to supported entity types and implements projectLabels() accessor.
resources/schemas/projectLabel.json	Adds JSON schema for the project_label stream records.

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[igorsechyn]

thank you for submitting this 🙏 i tested this locally and it is working. can you please add this block

    {
      "stream": {
        "name": "project_label",
        "json_schema": {},
        "supported_sync_modes": ["full_refresh"],
        "source_defined_cursor": true,
        "source_defined_primary_key": [["id"]]
      },
      "sync_mode": "full_refresh",
      "destination_sync_mode": "overwrite"
    },

in full_configured_catalog.json to cover this path in integration testing