v0.2.0 — context, iteration, fan-out, fan-in

Second increment of morphogen.organism.v1:

• view.cells — agent/classifier/gate cells name ancestor cells whose committed records join the effect request under context.cells. Admission rejects non-ancestors: the graph declares what the model sees.
• repeat — bounded iteration over a digest-embedded sub-manifest with carry and until early-exit. The evaluator-optimizer loop as structure.
• each — a delivered list fans out through a sub-manifest once per element; interface outputs collect into list ports. Map is a cell.
• many input ports — multiple edges collect into a list; guarded edges contribute conditionally. Fan-in, including conditional fan-in.

Receipts record rounds/items; nested paths loop/r<n>/, map/i<n>/. Verify replays all of it bit-for-bit offline. 65 tests, 9 suite examples (new: refine, panel, swarm).