ListConflicts, GetConflict, and the SSR media-detail active-conflict
lookup each hand-mapped their sqlc row (list-by-user, get-by-id,
list-by-media-item) into ConflictDetailResponse, triplicating the
optional resolution tail — including the silently-swallowed
ResolutionData unmarshal error, three times. NewConflictDetail is the
single mapper; a malformed resolution blob now logs instead of
vanishing.
Also extracts koreaderSyncEndpoints (the KOReader URL map duplicated
verbatim between token rotation and device approval; kobo's two URL
sets stay local because they deliberately differ).
Verified in the test-runner container (host conflict tests fail
environmentally on the container-only uploads path — baseline behavior).