Fix multiple Linear API integration issues

[jgadbois]

Fix multiple Linear API integration issues

1. Fix bulk update issues functionality:

   • Update GraphQL mutation to use single 'id' parameter instead of 'ids' array
   • Modify client implementation to handle sequential updates for multiple issues
   • Update response types to reflect new API structure

2. Add support for state names in bulk update issues:

   • Implement detection of state names vs. state IDs
   • Add functionality to fetch teams and find matching state IDs
   • Convert state names to state IDs before API calls

3. Implement search by issue ID capability:

   • Add parsing of issue identifiers (e.g., ABC-5143)
   • Use team key and issue number filters for precise searches

4. Fix API key authentication:

   • Improve authentication handling for API keys
   • Ensure proper validation of authentication credentials

[SvenMeyer]

@jgadbois You might want to have a look at and test #11

[ocasta181]

Hey @jgadbois

Apologies for the delay in response. Had you run the test suite? It appears to fail:

andrin@Andrins-MacBook-Pro linear-mcp % npm test                                                          

> [email protected] test
> jest

 PASS  src/__tests__/auth.integration.test.ts
 PASS  src/__tests__/auth.test.ts
 FAIL  src/__tests__/graphql-client.test.ts
  ● LinearGraphQLClient › createIssue › should successfully create an issue

    expect(jest.fn()).toHaveBeenCalledWith(...expected)

    Expected: Any<String>, ObjectContaining {"input": [{"description": "Description", "teamId": "team-1", "title": "New Issue"}]}
    Received: "
      mutation CreateIssue($input: IssueCreateInput!) {
        issueCreate(input: $input) {
          success
          issue {
            id
            identifier
            title
            url
            team {
              id
              name
            }
            project {
              id
              name
            }
            parent {
              id
              identifier
              title
            }
          }
        }
      }
    ", {"input": {"description": "Description", "teamId": "team-1", "title": "New Issue"}}

    Number of calls: 1

      144 |
      145 |       // Verify single mutation call with array input
    > 146 |       expect(mockRawRequest).toHaveBeenCalledWith(
          |                              ^
      147 |         expect.any(String),
      148 |         expect.objectContaining({
      149 |           input: [input]

      at Object.<anonymous> (src/__tests__/graphql-client.test.ts:146:30)

Test Suites: 1 failed, 2 passed, 3 total
Tests:       1 failed, 3 skipped, 37 passed, 41 total
Snapshots:   0 total
Time:        1.395 s, estimated 2 s
Ran all test suites.