kb-ingestlisted

Use safe merge mode by default: ```bash node .knowledge/tools/ingest-existing-project.js --merge node .knowledge/tools/sync-tracked.js --scan ``` Do not use `--force` unless the user explicitly wants backups and overwrite behavior. After ingest, inspect: - `.knowledge/project_index.json` - `.knowledge/modules/module_registry.json` - `.knowledge/maintenance/trust_report.json` - `.knowledge/maintenance/repair_queue.json`