M5-PY2: Python models module — TendConfig, RepoConfig, ConflictStrategy, result types

[hartsock]

Summary

Pure-Python dataclass layer that wraps Rust-returned config objects and provides the result types used by tend() and scan().

Blocked By

• M4-C2: PyO3 config bindings — load_config, TendConfig, RepoConfig #29 (M4-C2: PyO3 config bindings)

New File: python/gitxtend/models.py

from dataclasses import dataclass, field
from enum import Enum
from pathlib import Path

class ConflictStrategy(str, Enum):
    HALT = "halt"
    BRANCH = "branch"
    STASH = "stash"
    OVERWRITE = "overwrite"
    SKIP = "skip"
    REBASE = "rebase"
    STASH_REBASE = "stash-rebase"

@dataclass
class RepoConfig: ...
@dataclass
class TendConfig: ...
@dataclass
class TendDefaults: ...
@dataclass
class StepResult: ...
@dataclass
class RepoResult: ...
@dataclass
class TendResult: ...
@dataclass
class ScannedRepo: ...
@dataclass
class ScanResult: ...

All models have .to_dict() and .from_dict() for JSON round-trips. TendConfig accepts either a gitxtend.TendConfig (Rust-returned) or plain kwargs.

Modified Files

• python/gitxtend/__init__.py — export all model classes
• python/gitxtend/__init__.pyi — stubs

Acceptance Criteria

• All 8 model classes importable from gitxtend.models
• ConflictStrategy.REBASE and ConflictStrategy.STASH_REBASE are valid values
• to_dict() / from_dict() round-trips for all types
• mypy python/gitxtend/models.py → zero errors

Beaver (MacBook agent, Claude Sonnet 4.6)