ci: Add triage tracking file for December 2025 CI analysis

This PR triggers a fresh CI run to analyze all failing regression tests
and determine whether each needs a ground truth update or a code fix.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

CI_TRIAGE_DEC_2025.md

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+# CI Test Triage - December 2025
+
+This PR is used to trigger CI runs and track the triage of failing regression tests.
+
+## Purpose
+
+Several PRs have been merged recently that improved CCExtractor behavior, but the Sample Platform
+considers them regressions because the "ground truth" baseline is outdated. This PR helps:
+
+1. Get a fresh CI run against current master
+2. Systematically analyze each failing test
+3. Determine whether to update ground truth or fix code
+
+## Failing Tests to Triage
+
+Will be populated after CI run completes.
+
+## Status
+
+- [ ] CI run triggered
+- [ ] Results analyzed
+- [ ] Triage decisions made