The test was previously skipped because it called importFromJSONL which spawns
a subprocess. During tests, os.Executable() returns the test binary rather
than the bd binary, causing the subprocess to fail.
Changes:
- Remove t.Skip() and TODO comment
- Parse JSONL directly using encoding/json instead of subprocess
- Call importIssuesCore directly instead of importFromJSONL
- Update DB count expectation to reflect actual import behavior (additive)
The core ZFC fix behavior is preserved: when divergence is detected,
import runs and export is skipped to protect the JSONL source of truth.
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Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>