feat(quartz): add misfire original fire time column mapping

[JasonLandbridge]

Summary

This PR adds support for Quartz 3.17’s optional MISFIRE_ORIG_FIRE_TIME trigger column in the EF Core schema mappings used by this repo.

Related release note: https://github.com/quartznet/quartznet/releases/tag/v3.17.0

Problem

Quartz introduced an optional MISFIRE_ORIG_FIRE_TIME column on QRTZ_TRIGGERS to preserve the original scheduled fire time for misfired triggers when using “fire now” policies.

Without this column in our EF model mappings:

• schema validation can fail against upgraded Quartz expectations
• ScheduledFireTimeUtc behavior for misfired triggers may not align with the new optional column support

What this PR changes

• Added MisfireOriginalFireTime to the shared QuartzTrigger model.
• Mapped that property to provider-specific trigger columns:
  • SQL Server: MISFIRE_ORIG_FIRE_TIME (bigint)
  • PostgreSQL: misfire_orig_fire_time (bigint)
  • MySQL: MISFIRE_ORIG_FIRE_TIME (bigint(19))
  • SQLite: MISFIRE_ORIG_FIRE_TIME (bigint)
• Added provider-level model mapping tests (SQL Server, PostgreSQL, MySQL, SQLite) to verify column name/type mapping.

Scope / compatibility

• No breaking API changes.
• This is additive (nullable column mapping).
• Keeps behavior compatible while enabling Quartz 3.17 optional-column support across all provider projects in this solution.

Validation

• Solution build passes across targets.
• Mapping tests were added for each provider to assert the new column metadata.