8df248a1b2
- ConfigFileName → "gosentry.json", JobsFileName → "jobs.json"
- Remove exported LegacyConfigFileName ("pysentry.yaml")
- Add unexported legacyYAMLConfigFileName / legacyYAMLJobsFileName for
the upcoming one-time YAML import (P1.4)
- Update store.go fallback path and comments to describe YAML→JSON
migration rather than the old PySentry→GoSentry rename
- Align store_test.go references and test comments
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>