88f156b7a4
The old name conflated 'might become a placed subtitle' with 'what a scan pass produced'. The class is the output of a scan/identify pass — language/format may still be None while classification is in progress, confidence reflects classifier certainty, raw_tokens holds filename fragments under analysis. SubtitleScanResult says that directly. Pure rename + refreshed docstring; no behavior change. Touches the domain entity, the matcher/identifier/utils services, the manage_subtitles use case, the placer, the metadata store, the shared-media cross-ref comment, and 7 test modules.