Improve character suggestions and serve pools from the API

tests/test_suggestions.py

@@ -0,0 +1,20 @@
+from fastapi.testclient import TestClient
+from pirats.main import app
+from pirats.validation import sanitize_name, sanitize_text
+
+
+def test_suggestions_api_covers_rat_records_without_truncation():
+    # No lifespan needed: these public endpoints do not access the database.
+    client = TestClient(app)
+    response = client.get('/api/suggestions')
+    assert response.status_code == 200
+    pools = response.json()
+    assert set(pools) == {'look', 'smell', 'first_words', 'good_at_math', 'like', 'hate'}
+    for category, entries in pools.items():
+        assert len(entries) >= 20
+        assert len({entry.casefold() for entry in entries}) == len(entries)
+        sanitize = sanitize_name if category == 'smell' else sanitize_text
+        assert all(entry and sanitize(entry) == entry for entry in entries)
+    techniques = client.get('/api/suggestions/techniques')
+    assert techniques.status_code == 200
+    assert techniques.json()['techniques']