feat: Add integration test files to .gitignore and update changelog with test tasks

Author: Coderrob

.gitignore

@@ -137,3 +137,8 @@ dist
 # Vite logs files
 vite.config.js.timestamp-*
 vite.config.ts.timestamp-*
+
+# Integration test files
+integration-test-metrics.json
+integration-test-report.md
+integration-test.log

CHANGELOG.md

@@ -5,6 +5,8 @@ All notable changes to this repository will be documented in this file.
 Format and process
 
 - The `Unreleased` section contains completed tasks that have been removed from `TODO.md` and are targeted for the next release.
+- integration.test.task.003 — undefined — Test cleanup
+- integration.test.task.002 — undefined — Integration test completion
 - Each entry should include: task id, summary, author, PR or commit link, and a one-line description of the change.
 - When creating a release, move the entries from `Unreleased` to a new versioned section (e.g. `## [1.0.0] - 2025-09-20`) and include release notes.