Track four test files that were never committed

CLAUDE.md cites tests/test_model_config.py as the guard against reintroducing
retired OpenRouter model ids, but the file existed only on disk — the guard was
not in the repository. Same for the town geo, voice roster and voicemail
transcript tests, and the Reaper bleep-selection test.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

tests/test_voice_roster.py

@@ -0,0 +1,47 @@
+from backend.main import (
+    INWORLD_MALE_VOICES,
+    INWORLD_FEMALE_VOICES,
+    BLACKLISTED_VOICES,
+)
+
+NEWLY_ADDED = ["Arthur", "Daniel", "Brooke", "Joy", "Selene", "Zadie"]
+
+# Child / adolescent voices — deliberately kept off the roster for an
+# adult late-night call-in show.
+EXCLUDED_CHILD_VOICES = ["Abby", "Mia", "Riley"]
+
+
+def test_rosters_are_sorted_and_deduped():
+    for roster in (INWORLD_MALE_VOICES, INWORLD_FEMALE_VOICES):
+        assert roster == sorted(roster), "roster must stay alphabetical"
+        assert len(roster) == len(set(roster)), "duplicate voice in roster"
+
+
+def test_no_voice_appears_in_both_genders():
+    overlap = set(INWORLD_MALE_VOICES) & set(INWORLD_FEMALE_VOICES)
+    assert not overlap, f"voice in both rosters: {overlap}"
+
+
+def test_newly_added_voices_are_present():
+    roster = set(INWORLD_MALE_VOICES) | set(INWORLD_FEMALE_VOICES)
+    missing = [v for v in NEWLY_ADDED if v not in roster]
+    assert not missing, f"missing: {missing}"
+
+
+def test_child_voices_stay_off_the_roster():
+    roster = set(INWORLD_MALE_VOICES) | set(INWORLD_FEMALE_VOICES)
+    present = [v for v in EXCLUDED_CHILD_VOICES if v in roster]
+    assert not present, f"child/adolescent voice on roster: {present}"
+
+
+def test_blacklist_only_references_real_roster_voices():
+    roster = set(INWORLD_MALE_VOICES) | set(INWORLD_FEMALE_VOICES)
+    orphans = sorted(set(BLACKLISTED_VOICES) - roster)
+    assert not orphans, f"blacklist names voices not in the roster: {orphans}"
+
+
+def test_effective_pool_is_large_enough_for_session_sampling():
+    """main.py samples 25 voices per session from the non-blacklisted pool."""
+    roster = set(INWORLD_MALE_VOICES) | set(INWORLD_FEMALE_VOICES)
+    effective = roster - set(BLACKLISTED_VOICES)
+    assert len(effective) >= 25