docs(dashboard): list all display types with sizes in widget help and types command

The widget --help and widget types --help now show all 14 display types
with their default grid dimensions, matching the agent guidance table.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: betegon

src/commands/dashboard/widget/index.ts

@@ -15,8 +15,11 @@ export const widgetRoute = buildRouteMap({
     brief: "Manage dashboard widgets",
     fullDescription:
       "Add, edit, or delete widgets in a Sentry dashboard.\n\n" +
-      "Dashboards use a 6-column grid. Widget widths should sum to 6 per row.\n" +
-      "Common display types: big_number (2 cols), line/area/bar (3 cols), table (6 cols).\n" +
+      "Dashboards use a 6-column grid. Widget widths should sum to 6 per row.\n\n" +
+      "Display types (width × height):\n" +
+      "  common:      big_number (2×1), line (3×2), area (3×2), bar (3×2), table (6×2)\n" +
+      "  specialized: stacked_area (3×2), top_n (3×2), categorical_bar (3×2), text (3×2)\n" +
+      "  internal:    details, wheel, rage_and_dead_clicks, server_tree, agents_traces_table (3×2)\n\n" +
       "Default dataset: spans. Run 'sentry dashboard widget types' for the full list.\n\n" +
       "Commands:\n" +
       "  add    Add a widget to a dashboard\n" +

src/commands/dashboard/widget/types.ts

@@ -67,10 +67,10 @@ export const typesCommand = buildCommand({
       "and aggregate functions.\n\n" +
       "Sentry dashboards use a 6-column grid. When adding widgets, aim to fill " +
       "complete rows (widths should sum to 6).\n\n" +
-      "Display types are categorized as:\n" +
-      "  common       — general-purpose (big_number, line, area, bar, table)\n" +
-      "  specialized  — for specific use cases (stacked_area, top_n, categorical_bar, text)\n" +
-      "  internal     — Sentry-internal, rarely used directly\n\n" +
+      "Display types (width × height):\n" +
+      "  common:      big_number (2×1), line (3×2), area (3×2), bar (3×2), table (6×2)\n" +
+      "  specialized: stacked_area (3×2), top_n (3×2), categorical_bar (3×2), text (3×2)\n" +
+      "  internal:    details, wheel, rage_and_dead_clicks, server_tree, agents_traces_table (3×2)\n\n" +
       "Examples:\n" +
       "  sentry dashboard widget types\n" +
       "  sentry dashboard widget types --json",