chore: Release v1.0.0.dev2

.claude/architecture.md

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+# Architecture Guide - python-activerecord-sqlserver
+
+> SQL Server backend implementation for rhosocial-activerecord
+
+## Project Overview
+
+| Item | Value |
+|------|-------|
+| **Database** | Microsoft SQL Server |
+| **Python Driver** | pyodbc |
+| **Python Version** | 3.8+ |
+
+## Directory Structure
+
+```
+python-activerecord-sqlserver/
+├── src/rhosocial/activerecord/backend/impl/sqlserver/
+│   ├── __init__.py           # Backend initialization
+│   ├── __main__.py           # CLI entry point
+│   ├── backend.py            # Sync backend implementation
+│   ├── async_backend.py      # Async backend implementation
+│   ├── config.py             # Configuration
+│   ├── dialect.py            # SQL Server dialect
+│   ├── protocols.py          # Protocol definitions
+│   ├── transaction.py        # Transaction management
+│   ├── adapters.py           # Type adapters
+│   ├── mixins.py             # SQL Server-specific mixins
+│   ├── types.py              # SQL Server-specific types
+│   ├── cli/                  # CLI commands
+│   │   ├── connection.py
+│   │   ├── info.py
+│   │   ├── introspect.py
+│   │   ├── named_connection.py
+│   │   ├── named_procedure.py
+│   │   ├── named_query.py
+│   │   ├── output.py
+│   │   ├── query.py
+│   │   └── status.py
+│   ├── expression/           # SQL Server-specific expressions
+│   │   └── locking.py        # Locking expressions (FOR UPDATE)
+│   ├── functions/            # SQL Server-specific functions
+│   ├── introspection/         # Schema introspection
+│   └── show/                 # SHOW statements
+├── tests/
+│   └── rhosocial/activerecord_sqlserver_test/
+└── pyproject.toml
+```
+
+## SQL Server-Specific Features
+
+- **TABLESAMPLE**: Table sampling for large datasets
+- **PIVOT/UNPOT**: Pivot and unpivot queries
+- **OUTPUT clause**: Returning modified data
+- **HierarchyId**: Hierarchical data support
+- **JSON support**: JSON functions and indexes
+
+## Expression-Dialect System
+
+Like all backends, SQL Server uses the Expression-Dialect separation:
+- Expression classes define query structure
+- Dialect classes handle SQL generation
+
+SQL Server-specific expressions in `expression/` directory.
+
+## Reference
+
+- [Core architecture](../python-activerecord/.claude/architecture.md)
+- [Backend development guide](../python-activerecord/.claude/backend_development.md)