## What this PR does
Fixes v1.0 migration script
### Release note
```release-note
V1.0 migration script fixed after an upgrade was performed.
```
<!-- This is an auto-generated comment: release notes by coderabbit.ai
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## Summary by CodeRabbit
* **Chores**
* Updated bundle naming convention (paas → isp).
* Restructured configuration schema: flattened branding, renamed
scheduling field, and moved authentication redirect setting.
* Minor output text and prompt wording adjustments.
* **New Features**
* Added support for external IPs in generated configuration with safe
empty fallback.
* Consolidated branding and scheduling entries for simpler output.
* **Bug Fixes**
* Migration script now validates prerequisites and produces improved,
YAML-friendly output.
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settings.</sub>
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
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