Fixes 5 residual findings from the re-review of Playable Slice 0.6.6's
whole-branch review: two twice-hit spec files still carried invented
or seeded German fixture values (reputation-display faction name,
inventory-detail-panel item description and item name), a world store
fixture still used a German location description, and a dev comment
in reputation-content.ts referenced a faction name that no longer
exists in the code. All are literal string substitutions using
already-translated canon English text; no keys, ids, or logic changed.
Converts all German player-facing content in the API's seed files to
English per the English Game Content Foundation glossary: item
name/description, monster name, location name/description, all
local-location POI/action content, and the border-guard reputation
faction. Technical keys are unchanged.
