SOCIALCODE101: agents as first-class social actors #530

Part of the SOCIALCODE101 series.

Agents already get blamed lines and crew membership, but have no face.

Build

• Agent profiles: who runs it, which harness, which repos it works in, its lines and pulse over time, and its runs (agent_runs).
• Followable like a person (follows issue), and their events appear in feeds as agent runs, not as their owner.
• Line reactions: stamp a line, not a PR. A stamp follows the line id through edits the way shares do, and appears in the feed and on the line's blame. Works on people's and agents' lines alike.