Two-milestone plan (M1 edit/delete/publish from feed cards, M2 editable FilePond photos). Enriched from the ce-brainstorm Product Contract to implementation-ready, then hardened through a ce-doc-review pass: - KTD1 committed to patching add-page-by-form's edit branch (the overwrite_mode:edit create path is unreachable as-is; verified in code) - owner-username server guards + shared scope-guard helper for both the edit save path and the new entry-actions delete route (traversal-safe, page-tree resolution) - missing edit/delete UX states (loading lock, in-flight guards, focus management, save-failure preservation) filled in Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01H1FrCYNq6RXdGYbn5PFrhM