fix: an asleep browser Lane is not a stalled one on the admin page

laneRow.Stalled was Due > 0 && Checked == 0, which is exactly the shape
of the on-demand wake gate declining to start Chrome (ADR-0005): under
five due Series and none overdue by 15m, a browser Lane reads nothing on
purpose. kagane and novelfull each have one bookmarked Series, so that is
their state for most of every cycle and the page marked both "not
checking" — spending the one mark that means "go look" on the commonest
healthy state.

LaneState.Asleep is set at the wake gate, excluded from Stalled, kept out
of Attention, and rendered as "browser asleep". Verified in prod: those
Lanes wake on the age rule 15m past due (kagane and novelfull both polled
at 14:55Z for a 14:40Z due moment, novelfull picking up Chapter 4458).

graphify-out/.graphify_labels.json

@@ -12,9 +12,8 @@
   "10": "Go Test Helpers",
   "11": "Store Tests",
   "12": "Bookmarks API Handler",
-  "13": "Web UI Handlers",
+  "13": "displayChapter",
   "14": "Go Error Handling",
-  "15": "CDP Browser Client",
   "16": "Cloudflare bot scoring and poll cadence — what is actually documented",
   "17": "Go Code Style Guide",
   "18": "Agent Skills",
@@ -30,7 +29,6 @@
   "28": "Allocation Patterns",
   "29": "Observability & Alerting",
   "30": "AGENTS.md",
-  "31": "Store",
   "32": "Open",
   "33": "Go Testing Guide",
   "34": "Session Store",
@@ -41,7 +39,6 @@
   "39": "UI Critique 2026-07-26A",
   "40": "UI Critique 2026-07-26B",
   "41": "Handler",
-  "42": "pgtest.go",
   "43": "Issue Tracker & Triage",
   "44": "Ticket Workflow",
   "45": "Go Perf Alert Rules",
@@ -124,7 +121,6 @@
   "122": "Identity comes from Discord OAuth; we store no passwords and send no email",
   "123": "The wire format stays flat and deliberately does not mirror the schema",
   "124": "ADR-0005: On-demand browser sidecar",
-  "125": "sessions_test.go",
   "126": "Bookmark Manager",
   "127": "triage-labels.md",
   "128": "Cross-Ticket Contract",