fix(day): keep focus where the person moved it when the day's heading mounts late

Opening the conversations beside a docked day dropped focus to the page
in most runs. A day opened on load asks for its heading to take focus;
when the heading had not mounted yet the request waited, and it was
honoured whenever the heading appeared, even after the person had moved
on and opened the conversations. Focus jumped into the folding day and
fell to the page as it went inert. A waiting request is now honoured
only while focus is still where it was asked from, never inside an inert
panel, and it ends with the day.

The timeline range check measured the popover during its slide-in and
read it up to 8 px too high; it now waits for the entry animation.

The label-in-name fixes move their name composition into small helpers
(score ring link, IP copy button, sortable header, period marker, the
day's title focus), so every function ends at or below its old length
and the size baselines only fall.

src/__tests__/baselines/source-function-lines.json

@@ -1,7 +1,7 @@
 {
   "$comment": "Production functions over 200 lines, keyed \"file :: name\", and their length. Maintained by src/__tests__/source-size-ratchet.test.ts.",
   "count": 411,
-  "total": 148357,
+  "total": 148298,
   "entries": {
     "app/achievements/page.tsx :: AchievementsPage": 206,
     "app/api/admin/backups/upload/route.ts :: apiHandler(arg)": 314,
@@ -91,10 +91,10 @@
     "components/admin/host-metrics-chart.tsx :: HostMetricsChart": 232,
     "components/admin/invite-tokens-section.tsx :: InviteTokensSection": 525,
     "components/admin/key-backup-card.tsx :: KeyBackupCard": 238,
-    "components/admin/login-overview-section.tsx :: LoginOverviewSection": 522,
+    "components/admin/login-overview-section.tsx :: LoginOverviewSection": 503,
     "components/admin/pulse-day-mean-card.tsx :: PulseDayMeanCard": 305,
     "components/admin/reminders-section.tsx :: RemindersSection": 309,
-    "components/admin/user-management-section.tsx :: UserManagementSection": 634,
+    "components/admin/user-management-section.tsx :: UserManagementSection": 626,
     "components/admin/web-push-vapid-section.tsx :: WebPushVapidSection": 217,
     "components/auth/claim-profile.tsx :: ClaimProfile": 429,
     "components/auth/mfa-login-step.tsx :: MfaLoginStep": 217,
@@ -111,19 +111,19 @@
     "components/custom-metrics/custom-metric-form.tsx :: CustomMetricForm": 214,
     "components/custom-metrics/custom-metric-history-list.tsx :: CustomMetricHistoryList": 302,
     "components/cycle/bbt-chart.tsx :: BbtChart": 244,
-    "components/cycle/cycle-calendar.tsx :: CycleCalendar": 304,
+    "components/cycle/cycle-calendar.tsx :: CycleCalendar": 292,
     "components/cycle/cycle-settings.tsx :: CycleSettings": 228,
     "components/cycle/cycle-view.tsx :: CycleView": 408,
     "components/cycle/log-day-sheet.tsx :: LogDaySheet": 753,
-    "components/daily/today-hero.tsx :: TodayHero": 492,
+    "components/daily/today-hero.tsx :: TodayHero": 488,
     "components/dashboard/dashboard-header.tsx :: DashboardHeader": 215,
     "components/dashboard/medication-intake-quick-add.tsx :: MedicationIntakeQuickAdd": 384,
-    "components/day/day-layer.tsx :: DayLayer": 374,
+    "components/day/day-layer.tsx :: DayLayer": 360,
     "components/day/day-view.tsx :: DayView": 309,
     "components/documents/document-ai-section.tsx :: DocumentAiSection": 262,
     "components/documents/document-bulk-bar.tsx :: DocumentBulkBar": 204,
     "components/documents/document-card.tsx :: DocumentCard": 354,
-    "components/documents/document-detail-sheet.tsx :: DocumentDetailSheet": 936,
+    "components/documents/document-detail-sheet.tsx :: DocumentDetailSheet": 935,
     "components/documents/document-facts-review.tsx :: DocumentFactsSection": 252,
     "components/documents/document-facts-review.tsx :: FactRow": 262,
     "components/documents/document-filter-bar.tsx :: DocumentFilterBar": 348,
@@ -194,7 +194,7 @@
     "components/medications/glp1-medication-card.tsx :: Glp1MedicationCard": 405,
     "components/medications/injection-site-picker.tsx :: InjectionSitePicker": 287,
     "components/medications/intake-history-editable.tsx :: IntakeHistoryEditable": 224,
-    "components/medications/intake-history-list-v2.tsx :: IntakeHistoryListV2": 437,
+    "components/medications/intake-history-list-v2.tsx :: IntakeHistoryListV2": 427,
     "components/medications/intake-import-dialog.tsx :: IntakeImportDialog": 208,
     "components/medications/log-intake-dialog.tsx :: LogIntakeDialog": 267,
     "components/medications/medication-card.tsx :: MedicationCard": 413,