diff --git a/src/components/settings/dashboard-layout-section.tsx b/src/components/settings/dashboard-layout-section.tsx
index 3c60ef775..3074d8ded 100644
--- a/src/components/settings/dashboard-layout-section.tsx
+++ b/src/components/settings/dashboard-layout-section.tsx
@@ -50,7 +50,7 @@ import {
 } from "@/components/ui/select";
 import { apiDelete, apiGet, apiPut } from "@/lib/api/api-fetch";
 import { useAuth } from "@/hooks/use-auth";
-import { WIDGET_MODULE_BY_ID } from "@/lib/dashboard/snapshot";
+import { WIDGET_MODULE_BY_ID } from "@/lib/dashboard/widget-modules";
 
 /**
  * v1.4.47 W4 — pure reorder helper shared by the arrow buttons and the
diff --git a/src/lib/dashboard/snapshot.ts b/src/lib/dashboard/snapshot.ts
index 30835ef12..2fc0c682c 100644
--- a/src/lib/dashboard/snapshot.ts
+++ b/src/lib/dashboard/snapshot.ts
@@ -84,48 +84,20 @@ import { resolveModuleMap, type ModuleKey } from "@/lib/modules/gate";
 const BRIEFING_TTL_MS = 24 * 60 * 60 * 1000;
 
 /**
- * v1.18.0 — dashboard widget id → toggleable module key. When the user
- * disables the module, the matching widget is forced invisible on both
- * the web `layout` and the iOS `layoutCatalogue`, so the tile/chart never
- * paints. Only the toggleable surfaces appear here; CORE widgets
- * (weight / bp / pulse / bodyFat / medications / bpInTarget and the
- * vital-derived HealthKit metrics) carry NO entry and are never hidden.
+ * v1.18.0 — the two dashboard module maps live in a client-safe module
+ * (`@/lib/dashboard/widget-modules`) so the settings client component can
+ * import them without pulling the server snapshot builder (and its
+ * `pg` / `dns` chain) into the browser bundle. Re-exported here for the
+ * server call sites and the existing tests.
  */
-export const WIDGET_MODULE_BY_ID: Partial<Record<string, ModuleKey>> = {
-  mood: "mood",
-  sleep: "sleep",
-  glucose: "glucose",
-  achievements: "achievements",
-  recentWorkouts: "workouts",
-  // v1.18.0 B1 — recovery-domain HealthKit widgets belong to the recovery
-  // module; the per-night breathing-disturbance widget belongs to sleep.
-  cardioRecovery: "recovery",
-  sixMinuteWalk: "recovery",
-  stairAscentSpeed: "recovery",
-  stairDescentSpeed: "recovery",
-  breathingDisturbances: "sleep",
-};
-
-/**
- * v1.18.0 — `MeasurementType` slim-summary keys that belong to a
- * toggleable module. When the module is off the key is stripped from
- * `tiles.summaries` / `tiles.lastSeenByType` (so `metricStates` and the
- * client data-floor gates also drop it) before the snapshot leaves the
- * server. Core vital types are absent here and always pass through.
- */
-export const SUMMARY_TYPE_MODULE: Partial<Record<MeasurementType, ModuleKey>> = {
-  SLEEP_DURATION: "sleep",
-  BLOOD_GLUCOSE: "glucose",
-  // v1.18.0 B1 — recovery-domain HealthKit metrics. The recovery page +
-  // its tiles are the recovery module's surface; when it is off these
-  // device-native signals must drop from the dashboard snapshot too.
-  CARDIO_RECOVERY: "recovery",
-  SIX_MINUTE_WALK_DISTANCE: "recovery",
-  STAIR_ASCENT_SPEED: "recovery",
-  STAIR_DESCENT_SPEED: "recovery",
-  // Per-night breathing-disturbance index is a sleep-page signal.
-  BREATHING_DISTURBANCES: "sleep",
-};
+export {
+  WIDGET_MODULE_BY_ID,
+  SUMMARY_TYPE_MODULE,
+} from "@/lib/dashboard/widget-modules";
+import {
+  WIDGET_MODULE_BY_ID,
+  SUMMARY_TYPE_MODULE,
+} from "@/lib/dashboard/widget-modules";
 
 const GLUCOSE_CONTEXTS = [
   "FASTING",
diff --git a/src/lib/dashboard/widget-modules.ts b/src/lib/dashboard/widget-modules.ts
new file mode 100644
index 000000000..80af8e63b
--- /dev/null
+++ b/src/lib/dashboard/widget-modules.ts
@@ -0,0 +1,61 @@
+/**
+ * v1.18.0 — client-safe module maps for dashboard widgets / summary types.
+ *
+ * These two maps are pure data (string → ModuleKey) with no runtime
+ * dependency on the DB, Prisma, or the server-only module gate. They are
+ * factored out of `@/lib/dashboard/snapshot` so the settings client
+ * component (`dashboard-layout-section.tsx`) can import them without
+ * dragging the whole server snapshot builder — and its transitive
+ * `pg` / `dns` chain — into the browser bundle. `snapshot.ts` re-exports
+ * both for the server call sites and the existing tests.
+ *
+ * `ModuleKey` comes from `@/lib/modules/registry` (pure constants, no
+ * imports) and `MeasurementType` is a type-only import from the generated
+ * Prisma client, so this file stays browser-bundle-safe.
+ */
+import type { MeasurementType } from "@/generated/prisma/client";
+import type { ModuleKey } from "@/lib/modules/registry";
+
+/**
+ * Dashboard widget id → toggleable module key. When the user disables the
+ * module, the matching widget is forced invisible on both the web `layout`
+ * and the iOS `layoutCatalogue`, so the tile/chart never paints. Only the
+ * toggleable surfaces appear here; CORE widgets (weight / bp / pulse /
+ * bodyFat / medications / bpInTarget and the vital-derived HealthKit
+ * metrics) carry NO entry and are never hidden.
+ */
+export const WIDGET_MODULE_BY_ID: Partial<Record<string, ModuleKey>> = {
+  mood: "mood",
+  sleep: "sleep",
+  glucose: "glucose",
+  achievements: "achievements",
+  recentWorkouts: "workouts",
+  // v1.18.0 B1 — recovery-domain HealthKit widgets belong to the recovery
+  // module; the per-night breathing-disturbance widget belongs to sleep.
+  cardioRecovery: "recovery",
+  sixMinuteWalk: "recovery",
+  stairAscentSpeed: "recovery",
+  stairDescentSpeed: "recovery",
+  breathingDisturbances: "sleep",
+};
+
+/**
+ * `MeasurementType` slim-summary keys that belong to a toggleable module.
+ * When the module is off the key is stripped from `tiles.summaries` /
+ * `tiles.lastSeenByType` (so `metricStates` and the client data-floor
+ * gates also drop it) before the snapshot leaves the server. Core vital
+ * types are absent here and always pass through.
+ */
+export const SUMMARY_TYPE_MODULE: Partial<Record<MeasurementType, ModuleKey>> = {
+  SLEEP_DURATION: "sleep",
+  BLOOD_GLUCOSE: "glucose",
+  // v1.18.0 B1 — recovery-domain HealthKit metrics. The recovery page +
+  // its tiles are the recovery module's surface; when it is off these
+  // device-native signals must drop from the dashboard snapshot too.
+  CARDIO_RECOVERY: "recovery",
+  SIX_MINUTE_WALK_DISTANCE: "recovery",
+  STAIR_ASCENT_SPEED: "recovery",
+  STAIR_DESCENT_SPEED: "recovery",
+  // Per-night breathing-disturbance index is a sleep-page signal.
+  BREATHING_DISTURBANCES: "sleep",
+};