fix: resolve 10 code review issues

High priority:
- Fix concurrent race condition for view_count/like_count (atomic update)
- Add route request ID tracking to prevent race conditions
- Filter get_joke by status=approved (no pending content leak)
- Add error feedback for like button

Performance:
- Optimize random joke query (avoid full table sort)
- Limit page_size max to 100 (DoS prevention)

Medium:
- Add localStorage quota error handling
- Handle empty AI response gracefully
- Fix generate content title extraction

Low:
- Add rejected_jokes to stats API
- Update dashboard to show rejected count

.claude/settings.local.json

@@ -6,7 +6,15 @@
       "Skill(subagent-driven-development)",
       "Bash(git add *)",
       "Bash(git commit *)",
-      "Bash(python -c \"from app.models import Joke, JokeType, JokeCrowd, AdminUser; print\\('All models imported successfully'\\)\")"
+      "Bash(python -c \"from app.models import Joke, JokeType, JokeCrowd, AdminUser; print\\('All models imported successfully'\\)\")",
+      "Bash(curl -s -o /dev/null -w \"%{http_code}\" http://localhost:8001/health)",
+      "Bash(curl -s http://localhost:8001/api/auth/login -H \"Content-Type: application/json\" -d \"{\\\\\"username\\\\\":\\\\\"admin\\\\\",\\\\\"password\\\\\":\\\\\"admin123\\\\\"}\")",
+      "Bash(python -c \"import sys,json;d=json.load\\(sys.stdin\\);print\\(f'Jokes: {d[\\\\\"total\\\\\"]} total'\\)\")",
+      "Bash(npm run *)",
+      "Bash(curl -s -o /dev/null -w \"%{http_code}\" http://localhost:3000)",
+      "Bash(python -m uvicorn main:app --reload --port 8001)",
+      "Bash(python -c \"from app.schemas.joke import GenerateRequest, GenerateResponse; print\\('OK'\\)\")",
+      "Bash(python -c \"from main import app; print\\('API imports OK'\\)\")"
     ]
   }
 }