Admin analytics: heatmap per device, anteprima staff e analisi costi.

Separa heatmap mobile/desktop, opt-out analytics per operatori, dashboard costi con KPI e trend mensili.

Co-authored-by: Cursor <cursoragent@cursor.com>

backend/config/locales/admin.en.yml

@@ -11,6 +11,7 @@ en:
         youtube: YouTube
         sessions: Sessions
         analytics: Analytics
+        costs: Costs
         stream_nodes: Stream nodes
         password: Password
         logout: Log out
@@ -50,6 +51,9 @@ en:
       announcement_created: Notice saved
       announcement_updated: Notice updated
       announcement_destroyed: Notice deleted
+      cost_entry_created: Cost entry saved.
+      cost_entry_updated: Cost entry updated.
+      cost_entry_destroyed: Cost entry deleted.
     common:
       free_plan: Free
       yes: "Yes"
@@ -371,6 +375,10 @@ en:
         layer: Layer
         layer_move: Mouse moves
         layer_click: Clicks
+      devices:
+        mobile: Mobile
+        tablet: Tablet
+        desktop: Desktop
       index:
         title: Site analytics
         lead: Aggregated first-party move/click heatmaps and scroll depth, only with analytics consent. No personal data.
@@ -391,14 +399,84 @@ en:
         scroll_hint: "Average %{avg}% · max %{max}%"
         heatmap_moves: Mouse-move map
         heatmap_clicks: Click map
-        heatmap_hint: Colored overlay on the page screenshot. Green = low, red = high.
+        heatmap_hint: Colored overlay on the %{device} screenshot. Green = low, red = high. Data is never mixed across devices.
+        device_tabs_label: Device
         preview_title: Page screenshot
         preview_unavailable: Preview unavailable for paths with placeholders (e.g. /clubs/:id).
-        snapshot_missing: No screenshot yet. Visit the page on the site with analytics consent (desktop), then retry in a few seconds.
+        snapshot_missing: No screenshot for %{device} yet. Visit the page on that device with analytics consent, then retry in a few seconds.
         snapshot_meta: "Screenshot %{device} · captured %{at}"
         no_points: No aggregated points for this layer in the period.
         heatmap_title: Click map
         no_clicks: No aggregated clicks for this page in the period.
+      preview:
+        title: Preview without tracking
+        lead: Browse the public site without recording pageviews, clicks, moves or heatmap screenshots. Useful for production smoke tests.
+        active: Staff preview is active in this browser (7 days or until disabled).
+        enable: Enable staff preview
+        disable: Disable preview
+        open_site: Open site
+        enabled: Staff preview enabled. This browser will not record analytics.
+        disabled: Staff preview disabled.
+
+    costs:
+      index:
+        title: Cost analysis
+        lead: Enter monthly platform costs and compare cost, usage and revenue. KPIs recalculate automatically when you edit entries.
+        month: Month
+        apply: Apply
+        entries_title: Cost entries for the month
+        entries_lead: Add multiple line items (e.g. servers, storage, bandwidth). Month total is the sum of entries.
+        add_entry: Add entry
+        no_entries: No cost entries for this month. Add platform cost to see KPIs.
+        clubs_title: Allocated cost per club
+        clubs_lead: Infrastructure cost is split proportionally by streamed hours in the month.
+        no_clubs: No ended streams in this month.
+        trends_title: Trends (last 12 months)
+      kpi:
+        platform_cost: Platform cost
+        revenue: Revenue collected
+        margin: Margin
+        margin_pct: Margin %
+        hours: Streamed hours
+        sessions: Streams
+        clubs_active: Active clubs
+        storage: Replay storage
+        cost_per_hour: Cost / stream hour
+        cost_per_session: Cost / stream
+        cost_per_club: Cost / active club
+        revenue_per_hour: Revenue / stream hour
+        cost_per_gb: Cost / GB storage
+        storage_note: Current cumulative storage (not monthly).
+      charts:
+        cost_revenue: Cost vs revenue
+        cost_per_hour: Cost per streamed hour
+        hours: Streamed hours
+      table:
+        label: Item
+        amount: Amount
+        notes: Notes
+        club: Club
+        plan: Plan
+        hours: Hours
+        hours_share: Hour share
+        allocated_cost: Allocated cost
+        revenue: Revenue
+        margin: Margin
+        cost_per_hour: €/hour
+        cost_per_session: €/stream
+        storage: Storage
+      entries:
+        new_title: New cost entry
+        edit_title: Edit cost entry
+        month: Month
+        label: Description
+        label_hint: E.g. Hetzner, stream nodes, S3, egress.
+        amount: Amount (€)
+        notes: Notes
+        save: Save
+        cancel: Cancel
+        delete: Delete
+        delete_confirm: Delete this cost entry?
 
     billing:
       index: