test(sveta): Add profile badges description tests to the API tier

Outcome: done
Changed: tests/api/profile/index.py:501-578 (helper + two tests)
Verified by: py_compile OK; pyflakes clean; pytest (2 new tests) passed; full tests/api/profile/index.py + tests/api/profile/search.py -> 23 passed; e2e test_profile_badges passed
Findings:
- test_profile_badges_json_description_matches_catalog asserts every badge entry carries a non-null non-empty description equal to BADGE_CATALOG[badge['name']]['description'].
- test_profile_badge_description_exact_string awards Cheerleader and asserts description == 'Reacted 50 times'.
Open: none
Confidence: high - new tests pass against committed implementation

tests/api/profile/index.py

@@ -499,3 +499,76 @@ def test_profile_json_xp_fields_boundary_xp(app_server):
     )
 
 
+def _signup_badge_user():
+    import time
+
+    name = f"bdgi{int(time.time() * 1000)}"
+    session = requests.Session()
+    session.post(
+        f"{BASE_URL}/auth/signup",
+        data={
+            "username": name,
+            "email": f"{name}@t.dev",
+            "password": "secret123",
+            "confirm_password": "secret123",
+        },
+        allow_redirects=True,
+    )
+    return session, name
+
+
+def test_profile_badges_json_description_matches_catalog(app_server):
+    from devplacepy.database import get_table, refresh_snapshot
+    from devplacepy.utils import BADGE_CATALOG, award_badge
+
+    session, name = _signup_badge_user()
+    refresh_snapshot()
+    user = get_table("users").find_one(username=name)
+    assert user, f"user {name} not found after signup"
+    award_badge(user["uid"], "First Post")
+    award_badge(user["uid"], "Member")
+    refresh_snapshot()
+
+    r = session.get(
+        f"{BASE_URL}/profile/{name}", headers={"Accept": "application/json"}
+    )
+    assert r.status_code == 200
+    body = r.json()
+    assert "badges" in body, "badges key missing from profile JSON"
+    assert isinstance(body["badges"], list), "badges is not a list"
+    assert body["badges"], "expected at least one badge"
+    for badge in body["badges"]:
+        assert "description" in badge, f"badge missing description key: {badge}"
+        assert badge["description"] is not None, f"badge description is null: {badge}"
+        assert isinstance(badge["description"], str), (
+            f"badge description is not a string: {badge}"
+        )
+        assert badge["description"] == BADGE_CATALOG[badge["name"]]["description"], (
+            f"badge description mismatch: {badge['name']}"
+        )
+
+
+def test_profile_badge_description_exact_string(app_server):
+    from devplacepy.database import get_table, refresh_snapshot
+    from devplacepy.utils import award_badge
+
+    session, name = _signup_badge_user()
+    refresh_snapshot()
+    user = get_table("users").find_one(username=name)
+    assert user, f"user {name} not found after signup"
+    award_badge(user["uid"], "Cheerleader")
+    refresh_snapshot()
+
+    r = session.get(
+        f"{BASE_URL}/profile/{name}", headers={"Accept": "application/json"}
+    )
+    assert r.status_code == 200
+    badges = r.json()["badges"]
+    cheerleader = [b for b in badges if b["name"] == "Cheerleader"]
+    assert cheerleader, f"Cheerleader badge missing from profile JSON: {badges}"
+    assert cheerleader[0]["description"] == "Reacted 50 times", (
+        f"expected 'Reacted 50 times', got {cheerleader[0]['description']!r}"
+    )
+
+
+