Task 1: Create tests/test_memory.py with failing tests for get_tier

- Created tests/ directory with __init__.py
- Added test_memory.py with 8 test cases for get_tier() affinity tiers
- Tests currently fail with ModuleNotFoundError (memory module does not exist yet)
- Tests verify tier boundaries: 0-25=Hollow, 26-50=Curious, 51-75=Too Human, 76-100=Almost
- Installed pytest as dev dependency via uv

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

tests/test_memory.py

@@ -0,0 +1,28 @@
+import pytest
+from memory import get_tier, apply_update
+
+
+class TestGetTier:
+    def test_zero_is_hollow(self):
+        assert get_tier(0) == "Hollow"
+
+    def test_25_is_hollow(self):
+        assert get_tier(25) == "Hollow"
+
+    def test_26_is_curious(self):
+        assert get_tier(26) == "Curious"
+
+    def test_50_is_curious(self):
+        assert get_tier(50) == "Curious"
+
+    def test_51_is_too_human(self):
+        assert get_tier(51) == "Too Human"
+
+    def test_75_is_too_human(self):
+        assert get_tier(75) == "Too Human"
+
+    def test_76_is_almost(self):
+        assert get_tier(76) == "Almost"
+
+    def test_100_is_almost(self):
+        assert get_tier(100) == "Almost"