### Related issues
Closes#15312
### What problem does this PR solve?
`tools/scripts/mysql_migration.py` built batch INSERT SQL for the
`tenant_model_provider` stage using f-strings with raw `llm_factory` and
`tenant_id` values. If either value contained a single quote, migration
SQL could fail; this also created unnecessary SQL-injection risk in the
migration path.
This PR replaces string interpolation with parameterized SQL
placeholders in `TenantModelProviderStage.execute()`. The migration now
safely handles quoted values and executes deterministically across
existing tenant data.
### What problem does this PR solve?
Python implementation of the Go-based model_provider API suite.
### Type of change
- [x] New Feature (non-breaking change which adds functionality)
---------
Co-authored-by: bill <yibie_jingnian@163.com>
### What problem does this PR solve?
Add stage for migrate tenant_llm data into table tenant_model_instance
and tenant_model.
### Type of change
- [x] Other (please describe): tool script
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
* **Chores**
* Added two new migration stages to move tenant model and instance
records into new target tables, with dry-run, full-execute, and "create
table only" modes; migration skips already-migrated rows to avoid
duplicates.
* **Bug Fixes**
* Cleaned up migration header logging for clearer output.
* **Documentation**
* Added usage guide describing stages, options, modes, config format,
examples, and expected logs.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
### What problem does this PR solve?
Add a script to migrate data in tenant_llm into tenant_model_provider.
### Type of change
- [x] Other (please describe): tool script.
