LCFS - Fix Duplicate Draft FSE `charging_equipment` Records

**Describe the task**
Find duplicate draft records in versioned FSE `charging_equipment` data caused by the versioning bug, propose a fix strategy, align with the team lead on scope, then implement the patch.

**Purpose**
Duplicate draft records left in place risk data integrity issues and incorrect state transitions downstream. This task ensures they are identified and cleanly resolved.

**Acceptance Criteria**
- [ ] Query written to identify all affected `charging_equipment` draft records with duplicate versions
- [ ] Fix strategy documented and reviewed with team lead before any data is touched
- [ ] Patch implemented and verified after team lead sign-off on scope

**Additional context**
- Discovery only first — no records modified until strategy is approved
- Confirm the bug's active time window with whoever owns the versioning fix to scope the query
- Follow-up remediation card may be needed if data volume is large