refactor(storage): remove the unused legacy Usage session scanner

packages/storage/src/__tests__/public-entrypoints.test.ts

@@ -66,7 +66,6 @@ const SQLITE_BACKED_ENTRYPOINTS = [
   './session-bundle-policy',
   './session-copy-cleanup',
   './session-store',
-  './settings-store',
   './shell-run-authority',
   './shell-run-store',
   './sqlite-runtime-store',

packages/storage/src/settings-store.ts

@@ -19,17 +19,10 @@
 
 import { mkdir, readFile, rename, writeFile } from 'node:fs/promises';
 import { dirname, join } from 'node:path';
-import type {
-  AppSettings,
-  SettingsTestResult,
-  UpdateAppSettingsInput,
-  UsageRange,
-  UsageStats,
-} from '@maka/core/settings';
+import type { AppSettings, SettingsTestResult, UpdateAppSettingsInput } from '@maka/core/settings';
 import type { OnboardingMilestone, OnboardingMilestoneId } from '@maka/core/onboarding';
 import { createDefaultSettings, mergeSettings, normalizeSettings } from '@maka/core/settings';
 import { sanitizeOnboardingMilestones } from '@maka/core/onboarding';
-import { readUsageStats } from './usage-stats-store.js';
 
 /**
  * A conditional write's patch, either fixed or derived from the state the
@@ -53,7 +46,6 @@ export interface SettingsStore {
     patch: ConditionalSettingsPatch,
   ): Promise<{ applied: boolean; settings: AppSettings }>;
   testNetworkProxy(): Promise<SettingsTestResult>;
-  usageStats(range?: UsageRange): Promise<UsageStats>;
   /**
    * PR110b: upsert a single onboarding milestone. Caller passes the
    * desired terminal status; the store stamps `Date.now()` so the
@@ -214,10 +206,6 @@ class FileSettingsStore implements SettingsStore {
     };
   }
 
-  async usageStats(range: UsageRange = '24h'): Promise<UsageStats> {
-    return readUsageStats(this.workspaceRoot, range);
-  }
-
   private async write(settings: AppSettings): Promise<void> {
     await mkdir(dirname(this.settingsPath), { recursive: true });
     const tempPath = `${this.settingsPath}.${process.pid}.${Date.now()}.tmp`;