The v3→v4 migration was only renaming upsList to upsDevices without
transforming the device structure. V3 had a flat structure with SNMP
fields directly on the device object, while v4 expects a nested 'snmp'
object.
This commit fixes the migration to:
- Move host, port, community, version, etc. into nested snmp object
- Convert version from string to number
- Add default timeout (5000ms)
- Create thresholds object with defaults
- Preserve all SNMPv1, v2c, and v3 authentication fields
Also includes install.sh fix for better non-interactive handling.
- Create abstract BaseMigration class with order, shouldRun(), migrate()
- Add MigrationRunner to execute migrations in order
- Add Migration v1→v2 (snmp → upsDevices)
- Add Migration v3→v4 (upsList → upsDevices)
- Update INupstConfig with version field
- Update loadConfig() to run migrations automatically
- Update saveConfig() to ensure version field and remove legacy fields
- Update Docker test scripts to use real UPS data from .nogit/env.json
- Remove colors.bright (not available in @std/fmt/colors)
Config migrations allow users to jump versions (e.g., v1→v4) with all
intermediate migrations running automatically. Version field tracks
config format for future migrations.
