fix: V3 error response handling

[alespour]

Proposed Changes

v3 endpoint error can be a structured JSON. eg. write error:

{
  "error": "partial write of line protocol occurred",
  "data": [
    {
      "error_message": "invalid column type for column 'v', expected iox::column_type::field::integer, got iox::column_type::field::float",
      "line_number": 2,
      "original_line": "testa6a3ad v=1 17702"
    }
  ]
}

This PR fixes handling of such payload and resulting error message is constructed with all the error detail (and is aligned with other client libs such as influxdb3-js, influxdb3-csharp etc):

v3 write error message: partial write of line protocol occurred:
	line 2: invalid column type for column 'v', expected iox::column_type::field::integer, got iox::column_type::field::float (testa6a3ad v=1 17702)

Checklist

• CHANGELOG.md updated
• Rebased/mergeable
• A test has been added if appropriate
• Tests pass
• Commit messages are conventional

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 87.27%. Comparing base (9704517) to head (93c3bef).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #351      +/-   ##
==========================================
+ Coverage   86.78%   87.27%   +0.49%     
==========================================
  Files          20       20              
  Lines        1294     1336      +42     
  Branches      215      227      +12     
==========================================
+ Hits         1123     1166      +43     
  Misses         81       81              
+ Partials       90       89       -1     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.

[Copilot]

Pull request overview

This PR fixes error response handling for InfluxDB v3 endpoints that return structured JSON errors. Previously, the error parser only extracted simple message fields, but v3 endpoints can return detailed error objects with arrays of line-specific errors including line numbers and original line content. The fix implements proper parsing and formatting of these structured errors to provide more informative error messages.

Changes:

• Enhanced error message parsing in RestClient to handle v3 structured error responses with data arrays and objects
• Added comprehensive test coverage for various error response formats and edge cases
• Refactored test helper methods to separate content-type parameter from headers map
• Added junit-jupiter-params dependency for parameterized testing

Reviewed changes

Copilot reviewed 6 out of 6 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
src/main/java/com/influxdb/v3/client/internal/RestClient.java	Refactored error parsing logic into new formatErrorMessage method that handles v3 structured errors with data arrays/objects
src/test/java/com/influxdb/v3/client/internal/RestClientTest.java	Added comprehensive tests for v3 error formats including parameterized tests for edge cases
src/test/java/com/influxdb/v3/client/AbstractMockServerTest.java	Added contentType parameter overload to createResponse helper method
src/test/java/com/influxdb/v3/client/InfluxDBClientWriteTest.java	Updated test to use new createResponse signature
pom.xml	Added junit-jupiter-params dependency for parameterized testing
CHANGELOG.md	Documented bug fix for Enterprise/Core structured errors handling

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.

[Copilot]

Pull request overview

Copilot reviewed 6 out of 6 changed files in this pull request and generated no new comments.

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.

[Copilot]

Pull request overview

Copilot reviewed 6 out of 6 changed files in this pull request and generated no new comments.

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.

[bednar]

LGTM 🚀