Initial standalone memabra release

tests/test_router_smoke.py

@@ -0,0 +1,25 @@
+from memabra.candidate_types import CandidateObject
+from memabra.router import RuleBasedRouter, TaskContext
+
+
+def test_router_prefers_memory_for_preference_queries():
+    router = RuleBasedRouter()
+    decision = router.choose(
+        TaskContext(user_input="Remember my preferred deployment region"),
+        memory_candidates=[
+            CandidateObject(
+                id="mem-1",
+                type="memory",
+                title="Preferred region",
+                summary="User prefers us-west-2",
+                confidence=0.9,
+                freshness=0.8,
+                success_rate=0.9,
+            )
+        ],
+        skill_candidates=[],
+        tool_candidates=[],
+    )
+
+    assert decision.decision_type == "inject_memory"
+    assert decision.selected_ids == ["mem-1"]