Revert "feat(topics): add the Topics preview area, its navigation entry and its switch"

This reverts commit c68e833dcc.

src/lib/navigation/shared-record.ts

@@ -51,8 +51,6 @@ const WHOLE_RECORD_ROUTE_FAMILIES = [
   "/achievements",
   // v1.42 — the timeline lays every section side by side.
   "/timeline",
-  // So does a topic page (preview).
-  "/topics",
 ] as const;
 
 interface RouteFamily {

src/lib/query-keys/index.ts

@@ -49,7 +49,6 @@ import { vaccinationKeys } from "./vaccinations";
 import { workoutKeys } from "./workouts";
 import { activityKeys } from "./activity";
 import { provenanceKeys } from "./provenance";
-import { topicKeys } from "./topics";
 
 export const queryKeys = {
   ...authKeys,
@@ -65,7 +64,6 @@ export const queryKeys = {
   ...workoutKeys,
   ...activityKeys,
   ...provenanceKeys,
-  ...topicKeys,
   ...settingsKeys,
   ...cycleKeys,
   ...measurementReminderKeys,
@@ -167,7 +165,6 @@ export const measurementDependentKeys = [
   // write to this one evicts both roots.
   queryKeys.dayRoot(),
   queryKeys.timelineRoot(),
-  queryKeys.topicsRoot(),
 ];
 
 /**
@@ -202,7 +199,6 @@ export const moodDependentKeys = [
   // write to this one evicts both roots.
   queryKeys.dayRoot(),
   queryKeys.timelineRoot(),
-  queryKeys.topicsRoot(),
 ];
 
 /**
@@ -258,7 +254,6 @@ export const medicationDependentKeys = [
   // write to this one evicts both roots.
   queryKeys.dayRoot(),
   queryKeys.timelineRoot(),
-  queryKeys.topicsRoot(),
   // v1.43 — a taken supplement dose adds to the day's micronutrients
   // (`source = SUPPLEMENT`), so a dose write evicts the nutrient reads.
   queryKeys.nutrientsRoot(),
@@ -279,7 +274,6 @@ export const cycleDependentKeys = [
   // write to this one evicts both roots.
   queryKeys.dayRoot(),
   queryKeys.timelineRoot(),
-  queryKeys.topicsRoot(),
 ];
 
 /**
@@ -303,7 +297,6 @@ export const illnessDependentKeys = [
   // write to this one evicts both roots.
   queryKeys.dayRoot(),
   queryKeys.timelineRoot(),
-  queryKeys.topicsRoot(),
 ];
 
 /**
@@ -337,7 +330,6 @@ export const encounterDependentKeys = [
   // write to this one evicts both roots.
   queryKeys.dayRoot(),
   queryKeys.timelineRoot(),
-  queryKeys.topicsRoot(),
 ];
 
 /**
@@ -365,7 +357,6 @@ export const vaccinationDependentKeys = [
   // write to this one evicts both roots.
   queryKeys.dayRoot(),
   queryKeys.timelineRoot(),
-  queryKeys.topicsRoot(),
 ];
 
 /**

src/lib/query-keys/settings.ts

@@ -44,9 +44,6 @@ export const settingsKeys = {
    */
   moduleListLayout: () => ["settings", "module-list-layout"] as const,
 
-  /** The per-user preview-feature opt-ins behind `/api/settings/preview-features`. */
-  previewFeatures: () => ["settings", "preview-features"] as const,
-
   /**
    * v1.35.0 — which pillars count toward the Health Score, behind
    * `GET/PATCH /api/auth/me/health-score-config`. Its own cell rather than

src/lib/query-keys/topics.ts

@@ -1,11 +0,0 @@
-/**
- * Query keys — the topic pages (preview).
- * Part of the centralized factory; aggregated in `./index.ts`.
- */
-export const topicKeys = {
-  /** Every topic read; a write to any record table the topics read evicts it. */
-  topicsRoot: () => ["topics"] as const,
-  topicsOverview: () => ["topics", "overview"] as const,
-  topicDetail: (topic: string, range: string) =>
-    ["topics", "detail", topic, range] as const,
-};

src/lib/record-settings/classification.ts

@@ -98,7 +98,6 @@ export const SETTINGS_DESTINATION_INVENTORY = {
   export: PERSONAL,
   advanced: PERSONAL,
   privacy: PERSONAL,
-  preview: PERSONAL,
   about: PERSONAL,
 } as const satisfies Record<
   SettingsSectionSlug,

src/lib/settings/section-slugs.ts

@@ -114,10 +114,10 @@ export const SETTINGS_SECTION_SLUGS = [
   // pieces into one coherent privacy pane. Sits next to `advanced` (the
   // destructive-action home) and before `about`.
   "privacy",
-  // "Preview features": per-user opt-in to things finished enough to
-  // try and not yet the default (the Topics area first). Sits in the System
-  // group before About.
-  "preview",
+  // v1.44 — "Preview features" (per-user opt-ins, Settings > System) is not
+  // listed until the first preview it switches, the topic pages, ships: a
+  // switch that changes nothing is a promise the page cannot keep. The stored
+  // flag, `/api/settings/preview-features` and its backup round-trip stay.
   "about",
 ] as const;