feat: log subreddit screening outcomes

tests/monitor.test.ts

@@ -148,6 +148,30 @@ describe('MonitorService', () => {
     expect(postsRepo.setError).toHaveBeenCalledWith('t3_seller', 'Seller signals detected');
   });
 
+  it('logs a per-listing breakdown of screened and deferred posts', async () => {
+    const makePost = (id: string, author: string, created_utc: number): RedditPost => ({
+      id, subreddit: 'sub1', author, title: id,
+      url: `http://example.com/${id}.jpg`, permalink: `/r/sub1/${id}`, thumbnail: '',
+      is_self: false, created_utc, over_18: true, spoiler: false,
+    });
+    const seller = makePost('seller', 'seller', 4);
+    const sent = makePost('sent', 'sent', 3);
+    const selected = makePost('selected', 'selected', 2);
+    const deferred = makePost('deferred', 'deferred', 1);
+    const redditApi = createMockRedditApi([seller, sent, selected, deferred]);
+    vi.mocked(redditApi.isSellerProfile).mockImplementation(async (username) => username === 'seller');
+    const config = getTestConfig({ reddit: { subreddits: [{ name: 'sub1', type: 'image' }] } });
+    monitor = new MonitorService(
+      redditApi, createMockPostsRepo(), createMockMessagesRepo(new Set(['sent'])), config, logger, 0,
+    );
+
+    await expect(monitor.getUnprocessedPosts()).resolves.toEqual([selected]);
+    expect(logger.logs).toContainEqual(expect.objectContaining({
+      level: 'info',
+      message: 'r/sub1 listing: 4 fetched; 3 screened; 0 already processed; 1 already messaged; 1 seller signals; 0 missing gender tag; 0 gender not targeted; 1 eligible (selected); 0 outside recent window; 1 not evaluated after outcome',
+    }));
+  });
+
   it('returns newest post when multiple valid posts exist', async () => {
     const post1: RedditPost = {
       id: 't3_1', subreddit: 'sub1', author: 'user1', title: 'Older',