Analytics: 3-tab layout + fix geographic data loss; v1.1.34

Splits the analytics panel into Traffic / Engagement / System tabs so
episode plays, engagement metrics, and contact/study data are no longer
buried under the visitor log.

Fixes a bug where topCountries, topStates, topCities, device breakdown,
and referrers were computed from only the 100 most-recent visitor rows
instead of all rows in the selected range — causing older geographic data
(e.g. visits from India, Texas, Georgia) to silently disappear from the
aggregate totals.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

server/routes/analytics.js

@@ -253,6 +253,10 @@ export function register(app) {
     const botReasons = Object.entries(state.hitStats.botReasons ?? {})
       .sort((a, b) => b[1] - a[1]).slice(0, 10).map(([reason, count]) => ({ reason, count }))
 
+    // All range rows used for geographic/device/referrer aggregates — no cap so no visits are invisible
+    const allRangeRows = rangeVisitorRows
+
+    // Capped to 100 for the visitor log display (with page history hydrated)
     const recentVisitorRows = rangeVisitorRows.slice(0, 100).map(row => {
       const fullVisitor = state.visitorStats.visitors[row.visitorId]
       return { ...row, pageHistory: fullVisitor?.pageHistory ?? [] }
@@ -315,13 +319,13 @@ export function register(app) {
         returningVisits: state.visitorStats.returningVisits,
         firstVisitAt: state.visitorStats.firstVisitAt,
         lastVisitAt: state.visitorStats.lastVisitAt,
-        topCountries: buildTopLocations(recentVisitorRows, 'country'),
-        topStates: buildTopLocations(recentVisitorRows, 'state'),
-        topCounties: buildTopLocations(recentVisitorRows, 'county'),
-        topCities: buildTopLocations(recentVisitorRows, 'city'),
+        topCountries: buildTopLocations(allRangeRows, 'country'),
+        topStates: buildTopLocations(allRangeRows, 'state'),
+        topCounties: buildTopLocations(allRangeRows, 'county'),
+        topCities: buildTopLocations(allRangeRows, 'city'),
         deviceBreakdown: (() => {
           const counts = { mobile: 0, desktop: 0, tablet: 0, unknown: 0 }
-          for (const row of recentVisitorRows) {
+          for (const row of allRangeRows) {
             const d = row.device ?? 'unknown'
             counts[d] = (counts[d] ?? 0) + 1
           }
@@ -329,7 +333,7 @@ export function register(app) {
         })(),
         topReferrers: (() => {
           const counts = {}
-          for (const row of recentVisitorRows) {
+          for (const row of allRangeRows) {
             if (!row.referrer) continue
             counts[row.referrer] = (counts[row.referrer] ?? 0) + 1
           }