Add account browsing simulation

tests/web/growth-route.test.ts

@@ -8,6 +8,7 @@ import {
 } from '../../packages/api-contracts/src/index.js';
 import { runMigrations } from '../../src/database/client.js';
 import { AccountGrowthRepository } from '../../src/database/growth-repository.js';
+import { AccountBrowsingSimulationRepository } from '../../src/database/browsing-simulation-repository.js';
 import type { WebContext } from '../../src/web/context.js';
 import { createGrowthRouter } from '../../src/web/routes/growth.js';
 import type { RedditPost } from '../../src/reddit/api.js';
@@ -63,6 +64,7 @@ function thread(id: string): RedditPost {
 describe('growth route', () => {
   let db: Database.Database;
   let repo: AccountGrowthRepository;
+  let browsingRepo: AccountBrowsingSimulationRepository;
   let app: express.Express;
   let pushed: Array<{ level: string; message: string }>;
 
@@ -77,12 +79,14 @@ describe('growth route', () => {
       ) VALUES (?, 'grower', ?, 'verified', 1, '[]', '{}', 0, 0)
     `).run(ACCOUNT, ACCOUNT);
     repo = new AccountGrowthRepository(db);
+    browsingRepo = new AccountBrowsingSimulationRepository(db);
     pushed = [];
 
     const ctx = {
       broadcaster: { push: (level: string, message: string) => pushed.push({ level, message }) },
       services: {
         growth: repo,
+        browsing: browsingRepo,
         redditAccounts: {
           list: () => [{ accountId: ACCOUNT, redditUsername: 'grower' }],
         },
@@ -246,6 +250,37 @@ describe('growth route', () => {
     });
   });
 
+  describe('PATCH /api/growth/:accountId/browsing', () => {
+    it('enables simulation within the conservative hard limits', async () => {
+      const { status, json } = await call(app, 'PATCH', `/api/growth/${ENCODED}/browsing`, {
+        enabled: true,
+        dailyTargetMin: 4,
+        dailyTargetMax: 8,
+        minimumGapMs: 3_600_000,
+      });
+
+      expect(status).toBe(200);
+      const parsed = GrowthAccountResponseSchema.parse(json);
+      expect(parsed.account.browsing).toMatchObject({
+        settings: { enabled: true, dailyTargetMin: 4, dailyTargetMax: 8 },
+        noVotesSubmitted: true,
+      });
+      expect(pushed).toContainEqual({
+        level: 'info', message: 'Browsing simulation enabled for u/grower',
+      });
+    });
+
+    it.each([
+      { dailyTargetMax: 13 },
+      { minimumGapMs: 44 * 60_000 },
+      { postWeight: 0, commentWeight: 0 },
+      { nextDueAt: 123 },
+    ])('rejects unsafe or non-operator settings %o', async (body) => {
+      const { status } = await call(app, 'PATCH', `/api/growth/${ENCODED}/browsing`, body);
+      expect(status).toBe(400);
+    });
+  });
+
   describe('pause and resume', () => {
     it('pauses with a default reason and resumes', async () => {
       const paused = await call(app, 'POST', `/api/growth/${ENCODED}/pause`, {});