Record hosted browser readback and close synchronized discovery work

Assistant: codex
Assistant-Model: gpt-6-astra
Assistant-Session: 01a13690-1c84-77a2-aeee-7f517ec60f5d

intakes/REUSE-IN-0001-headless-browser-runnable-answer.md

@@ -4,7 +4,9 @@
 id: REUSE-IN-0001
 kind: intake
 title: "Answer a headless-browser request with a runnable trial, or say the gap is availability"
-status: open
+status: closed
+outcome: promoted
+promoted_to: REUSE-WP-0024
 lane: green
 flavor: implementation
 origin: cross-repo
@@ -81,3 +83,28 @@ description: >
   the consumer's task and is not completed by this announcement.
 state_hub_intake_id: "01a13530-89a8-77b0-bb95-ef16d74bb29b"
 ```
+
+## Registry resolution — 2026-10-13
+
+Implemented under REUSE-WP-0024 and published in commit `50077c9`.
+The original description above is retained as the intake history.
+
+- The same browser capability now includes a pinned, downloadable standalone
+  client, exact preflight/trial commands in the query summary, immutable local
+  container setup and conditional managed instructions. No sibling checkout or
+  consumer browser installation is needed for the provider path.
+- A fresh local client-only trial passed all 14 fixture steps; four downloaded
+  PNGs passed independent hash/dimension checks at desktop and narrow sizes.
+  Availability is A5 for the published container, with A2 source reuse retained.
+  The endpoint is ephemeral and managed Railiance admission remains pending.
+- Short-name scoring fixes relevance and false-new behavior. Plan-check using
+  the published hosted snapshot ranks the browser first at 0.6667, verdict
+  `reuse`. Relevance is explicitly separate from runtime readiness; an unavailable
+  provider is an availability gap on this entry.
+- Hosted federation readback at 18:49:02 UTC is fresh, warning-free, and includes
+  one browser capability among 66 entries. Public capability/index bytes match
+  the published commit.
+
+[Review, trial and publication evidence](../docs/evidence/2026-10-13-browser-discovery.md).
+This closes the registry-owned intake, not CONTENT-WP-0000-T04, platform
+admission or consumer application acceptance.