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Scene-engine (FLEXIBLE) projects now get a clean per-field content editor instead of the Konva layer panel. The scoping confirmed content VALUES already flow to saved_scene_contents via the existing `c-`-layer + updateLayer + autosave path — so this is purely a cleaner presentation over the working save path, no new persistence. - isFlexStoryProject(chooseMode) helper (FLEXIBLE → scene engine). - BlockFieldForm: renders one labelled field per content layer (label from layer.name — the field's Persian label, already preserved from the content title), text→textarea, image→upload; writes back via the unchanged updateLayer(props) call. No Konva geometry/layer chrome. - StudioSidebarContent: the "scenes" tool branches on chooseMode — FlexStory → BlockFieldForm, AE/Konva → SceneEditSidebarContent (zero regression). - i18n: componentsStudioSidebarBlockFieldForm in fa + en. Verified `npm run build`. NOTE: preview stays the live Konva canvas for v1 (a true @remotion/player embed is deferred — 8–12MB Three.js bundle). Remaining: confirm the FlexStory render binder reads the 4 theme colours from scene_data (already persisted) vs saved_shared_colors (would need a small colours endpoint). Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>