docs(roadmap): considering-state done; shelve streaming for the POC

Flip considering-state to done+merged+live-confirmed. Strike the streaming
item — the considering-state reframes the wait and is tested/live; real
streaming's transport rework + mid-stream failure surface isn't worth it for
the POC. Streaming spec retained as a record (banner SHELVED). Includes the
human's folded-in further-down roadmap ideas.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

docs/superpowers/specs/2026-07-10-narrator-streaming-design.md

@@ -1,13 +1,14 @@
 # Narrator streaming (M2) — design
 
-> **STATUS: PARKED (2026-07-10).** Deferred in favour of a lightweight
-> considering-state (see `2026-07-10-considering-state-design.md`), which meets
-> §14's anti-freeze *goal* by reframing the wait in-character rather than hiding
-> it — for a fraction of the risk (this piece is the POC's largest transport
-> rework and adds mid-stream error/tag-boundary failure surface that a
-> "polish, not proof" feature shouldn't). Revisit only if playtesting shows the
-> wait genuinely hurts immersion (long Narrator responses or a slow prod model).
-> This design stays ready for that moment.
+> **STATUS: SHELVED for the POC (2026-07-10).** The considering-state
+> (`2026-07-10-considering-state-design.md`) shipped and is live-confirmed; it
+> meets §14's anti-freeze *goal* by reframing the wait in-character rather than
+> hiding it, for a fraction of the risk. Real streaming is the POC's largest
+> transport rework (client `HTTPRequest` → poll-based `HTTPClient`) and adds
+> mid-stream error/tag-boundary failure surface judged not worth it. The roadmap
+> item is struck. This design is retained only as a record — revive it solely if
+> playtesting proves the wait genuinely hurts immersion (long Narrator responses
+> or a slow prod model). Not planned work.
 
 Date: 2026-07-10
 Milestone: **M2 — prove aliveness** (roadmap). The third M2 item; **polish, not