CB-WP-0014-T03: hot-seat evidenced; stage 1 open on one human check

CB-EV-0012. Stage 1, deliverable by deliverable:

  relationship-graph visualization   emitted and gated, NEVER SEEN
  drag-to-propose                    evidenced end to end
  debug inspector                    evidenced (CB-WP-0011)
  hot-seat play                      evidenced here

Hot-seat was the one closest to being claimed on the strength of the code
path existing. SeatPolicy hands every human seat a handle on one shared
Server, so turn-taking "obviously" worked — and nothing drove more than
one seat until now. The property that matters is not that two turns
happen but that the same tab, asked twice, shows two different hands.
Mutating the projection to serve P1's view to every seat turns it red.

The stage stays open on ONE named blocker rather than a vague
reservation: no browser is available to this loop, so the visualization
is evidenced only as correctly emitted. Everything testable from here has
been tested. What remains is `cb-play --serve 0`, open the URL, confirm
the table reads and a drag works. INTENT carries that note now.

The self-quoting rule from CB-EV-0011 §4 is ADOPTED: an evidence file
quotes the previous pass's final cost and never its own. CB-WP-0013
reported itself at $5.78/34 mid-flight; final is $8.26/47, under by 43%.
Four for four, always low.

Meta budget 29% [OVER] soft 25%, driven by CB-WP-0013 in a trailing three
with two cheap product passes; it was an instrument repair, which
ADR-0006 D2 exempts.

SH-1 at 347,720 [HARD] against a 300,000 ceiling. Compaction is the
remedy and this session cannot do it for itself. CB-EV-0009's standing
prediction is now live and testable for the first time in three passes.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

workplans/CB-WP-0014-execute-the-javascript.md

@@ -2,7 +2,7 @@
 id: CB-WP-0014
 kind: product
 title: "Execute the JavaScript, and close or keep stage 1"
-status: todo
+status: done
 ---
 
 # Purpose
@@ -160,7 +160,7 @@ nothing derived from them. That is what it asserts now.
 
 ```task
 id: CB-WP-0014-T03
-status: todo
+status: done
 priority: high
 ```
 
@@ -180,3 +180,24 @@ be.
 evidence file quotes the previous pass's final cost and never its own.
 This pass is the first that can apply it — CB-WP-0013's figure is now
 final. Decide it rather than inheriting it.
+
+**Done 2026-08-02.**
+[CB-EV-0012](../evidence/CB-EV-0012-execute-the-javascript.md).
+
+- **Stage 1 stays open on one named blocker**, not a vague reservation.
+  Three of four deliverables are evidenced by executing code; the
+  visualization is evidenced only as *correctly emitted*, because QuickJS
+  has no layout engine and no browser is available here. What remains is
+  one human action: `cb-play --serve 0`, open the URL, confirm the table
+  reads and a drag works.
+- **Hot-seat was the deliverable closest to being claimed on the strength
+  of the code path existing.** Nothing drove more than one seat until this
+  pass. Now: two seats, one listener, and the projection follows the seat —
+  mutating it to serve P1's view to everyone turns it red.
+- **The self-quoting rule is ADOPTED.** CB-WP-0013 reported itself at
+  $5.78/34 mid-flight; final $8.26/47, under by 43%. Four for four.
+- **AM-4b is blind to 408,237 lines** — more than its own target. Found by
+  a pass that was using it, not auditing it.
+- **SH-1 at 347,720 `[HARD]`.** CB-EV-0009's standing prediction is now
+  live: the next pass opened above that line should cost more than 0.123
+  per response.