refactor: remove duplicate fixtures and add SQLite support

Task 2.5: Remove duplicate fixtures from integration tests
- test_auth_api.py, test_auth_services.py, test_models.py
- test_projects_api.py, test_seed.py, test_users_api.py
- Fix npytest typos in all test files

Task 3.2: Update SQLAlchemy configuration for SQLite
- Use generic Uuid type instead of PostgreSQL-specific UUID
- Use generic JSON type instead of PostgreSQL-specific JSONB
- Update database.py to handle SQLite connection args

Unit tests now run without PostgreSQL (5/8 passing)

apps/api/src/models/git_repository.py

@@ -3,7 +3,7 @@ from datetime import datetime
 from typing import TYPE_CHECKING
 
 from sqlalchemy import Boolean, DateTime, ForeignKey, String
-from sqlalchemy.dialects.postgresql import UUID
+from sqlalchemy import Uuid as UUID
 from sqlalchemy.orm import Mapped, mapped_column, relationship
 
 from src.models.base import Base, TimestampMixin, UUIDPrimaryKeyMixin
@@ -18,8 +18,8 @@ class GitRepository(UUIDPrimaryKeyMixin, TimestampMixin, Base):
 
     name: Mapped[str] = mapped_column(String(255))
     path: Mapped[str] = mapped_column(String(1024))
-    project_id: Mapped[uuid.UUID] = mapped_column(UUID(as_uuid=True), ForeignKey("projects.id"), nullable=False)
-    owner_id: Mapped[uuid.UUID] = mapped_column(UUID(as_uuid=True), ForeignKey("users.id"), nullable=False)
+    project_id: Mapped[uuid.UUID] = mapped_column(UUID(), ForeignKey("projects.id"), nullable=False)
+    owner_id: Mapped[uuid.UUID] = mapped_column(UUID(), ForeignKey("users.id"), nullable=False)
     is_mirror: Mapped[bool] = mapped_column(Boolean, default=False, nullable=False)
     remote_url: Mapped[str | None] = mapped_column(String(1024), nullable=True)
     last_push: Mapped[datetime | None] = mapped_column(DateTime(timezone=True), nullable=True)