Add Stage E streaming design brief

docs/README.md

@@ -190,6 +190,7 @@ One-word status per doc; see each file for the full survey/spec.
 | [`proposals/proposal-i-docs-as-site-source.md`](proposals/proposal-i-docs-as-site-source.md) — extends the docs/-to-wiki publish pipeline with a second target: rendered site pages + build-time JSON data extracts                                                                                                                                                                                                                                                                       | BUILDING |
 | [`proposals/proposal-i-readme-pipeline.md`](proposals/proposal-i-readme-pipeline.md) — folds `readme.md` into the same pipeline as a third (`readme`) emit mode: content merge map, owner GO decision, and what shipped                                                                                                                                                                                                                                                                   | SHIPPED  |
 | [`federation/public-export-v1.md`](federation/public-export-v1.md) — publish-first federation: signed verdict export consumable by mpc-autofill forks and the MIT-lineage proxy tools, no peer required                                                                                                                                                                                                                                                                                   | HOLD     |
+| [`proposals/stage-e-streaming.md`](proposals/stage-e-streaming.md) — Stage E streaming assembly design brief (issue #153): trigger/granularity/backpressure/consensus-recompute/gate/observability decisions, efficiency candidates checked against `theory.md`'s soundness bound, and the hardware envelope/federated-scalability analysis                                                                                                                                               | HOLD     |
 
 Not every shipped proposal-lettered feature has a survey doc here — some
 (e.g. Proposal A, Proposal D) went straight from idea to shipped PR without

docs/features/catalog-completion-plan.md

@@ -2803,6 +2803,15 @@ likely extends Part 1's existing `PilotRunLedger` rather than a new
 model. Applies to the shared runner, so Stage C golden runs and the
 fidelity replay inherit it for free.
 
+The batch-run contract above is fully specified and its kill-test has
+passed in production (see the crash-drill note earlier in this
+section); extending the same four-piece contract to a continuous
+streaming operating mode (trigger, work granularity, backpressure,
+consensus-recompute placement, the human-backed gate in a continuous
+world, observability) is designed in
+[`docs/proposals/stage-e-streaming.md`](../proposals/stage-e-streaming.md)
+(issue #153, HOLD pending owner review) — not restated here.
+
 ---
 
 ## Part 5 — Residual classification (existing tags only)

docs/pipeline-fidelity-gate.md

@@ -1065,7 +1065,11 @@ own, by design.
 1. **Bug-A full re-scan** of the 17,531-card blank-tier-1 pool, deferred
    to post-pilot per the owner ruling in §9(c) (recipe documented there
    and in §13, not re-derived here). Still the one tracked open item
-   carried forward past the fire.
+   carried forward past the fire. Owner-ratified sequencing (2026-07-24):
+   the remaining tail (issue #418) is Stage E streaming's shakedown
+   cohort — it does not get a further batch pass; see
+   [`docs/proposals/stage-e-streaming.md`](proposals/stage-e-streaming.md)
+   §6.
 2. **Moderation package sizing** is now **data-ready**: the review queue
    is a DB-verified, dedup'd **134,370** cards (`to-review` skips, see
    "Topline end-state" above) — sizing work for the moderation