feat(orm): add Model.insert() classmethod for bulk inserts

[bedus-creation]

Summary

Adds an async Model.insert() classmethod to the Masonite ORM for bulk-inserting one or many rows without instantiating model instances.

# Single row
await User.insert({"email": "picard@example.com", "votes": 0})

# Multiple rows (bulk)
await User.insert([
    {"email": "picard@example.com", "votes": 0},
    {"email": "janeway@example.com", "votes": 0},
])

Unlike create, insert does not fire model events, apply timestamps, or return model instances. It is intended for high-volume seed and batch operations. The classmethod delegates to the existing query builder insert(), which already supports a single dict or a list of dicts.

Changes

• masoniteorm/models/model.py: new insert() classmethod
• tests/.../test_sqlite_builder_insert.py: tests for single-row and bulk classmethod inserts

Testing

uv run pytest tests/masoniteorm/sqlite/builder/test_sqlite_builder_insert.py -v — 6 passed.

Note

Documentation for this feature lives in the separate docs-site repo and is delivered as its own PR.

[bedus-creation]

✅ Code review: APPROVED (formal GitHub approval blocked — shared author identity)

Correctness: insert() cleanly delegates to cls.query().insert(values); the builder's insert(values: dict | list) -> int | None handles single dict (wrapped to one-item batch), list of dicts, and returns None on empty input. The classmethod's explicit dict | list -> int | None signature matches the builder exactly.
Patterns: Consistent with existing create/first_or_create/update_or_create classmethods. Async correct.
Tests: 6/6 sqlite builder tests pass locally; postgres tests collect cleanly (live-DB gated). New behavior covered. No blockers — ready to merge.