fix: Bug fixes from full API diagnostic sweep — all 33 endpoints now 200 OK

- Fix /api/watch 500: correct URL path format (slug/ep-N -> slug/ep-N)
- Fix /api/info: accept both ?id= and ?slug= query params
- Fix /api/status/airing 500: map short status names (ongoing/airing/completed) to correct slugs
- Fix /api/top-rankings: correct selectors (#top-anime .scaff.side.items a.item) + extract rank from rankN class
- Fix /api/completed: correct selectors (section.top-table[data-name='completed'] a.item)
- Fix /api/recently-updated: correct selectors (#recent-update .ani.items .item) + client-side tab filtering
- Fix parseListItem: detect self-as-anchor (<a> elements) + fallback slug extraction
- Fix category extractor: add status name mapping (ongoing->currently-airing, etc.)
- Add /api/cache/stats endpoint for LRU cache diagnostics
- 33 endpoints verified: 0 errors, 0 timeouts

src/controllers/status.controller.js

@@ -57,9 +57,12 @@ const getStatus = async (req, res, next) => {
     }
     // Map short status names to full slugs
     const statusMap = {
+      ongoing: "currently-airing",
       airing: "currently-airing",
       completed: "finished-airing",
-      upcoming: "not-yet-aired"
+      finished: "finished-airing",
+      upcoming: "not-yet-aired",
+      "not-yet-aired": "not-yet-aired"
     };
     const mappedStatus = statusMap[status] || status;
     const data = await extractStatus(mappedStatus, page);