Make CI green: version-independent flag names, SWR corpus skip

[ctoth]

CI has been red on every master push since 2026-07-13 (11 failing tests, all pre-existing — identical failure sets on master and PR runs). Two causes, both fixed:

1. Composite flag names are version-dependent

EnumNameConverter._unstructure_enum relied on obj.name, which for composite Flag values (e.g. IS_NPC | SENTINEL) is None before Python 3.11, so the 3.10 job emitted ROM_ACT_TYPES.3 where 3.11+ emits ROM_ACT_TYPES.IS_NPC|SENTINEL. The converter now decomposes unnamed composites into single-bit member names in ascending bit order — exactly what 3.11+ produces — so JSON output is identical on every supported version. test_every_int_flag_type_jsonifies_named_combinations also built its expectation from .name (and from list(flag_type), whose iteration semantics changed in 3.11); it now derives both the value and the expected string from single-bit members directly. No IntFlag in the codebase defines composite members, so the A|B contract is unambiguous.

2. Missing corpus skip guard

test_fuss_fields_are_editable_declaratively was the only SWR test without the swr_paths() skip guard, so it crashed with FileNotFoundError on the hardcoded C:\Users\Q\src\swrfuss path on any machine without the corpus — including CI.

Verification

Full suite run locally per version, mirroring CI's uv run --extra test pytest:

• CPython 3.10.11 (version confirmed in-run — an earlier attempt silently fell through to a PATH pytest on 3.13, so interpreter identity is now asserted): 938 passed
• CPython 3.11: 938 passed
• CPython 3.13: 938 passed

🤖 Generated with Claude Code

https://claude.ai/code/session_01HfQ678eD83tiAALqNkct1U