세션 메모리와 비언어 이벤트 저장

infra/db/init/02_schema.sql

@@ -221,6 +221,7 @@ CREATE TABLE IF NOT EXISTS app.turns (
   silence_ms  INT,
   speech_rate REAL,
   barge_in    BOOLEAN,
+  provider_events JSONB NOT NULL DEFAULT '[]'::jsonb,
   created_at  TIMESTAMPTZ NOT NULL DEFAULT now(),
   UNIQUE (session_id, seq)
 );

infra/db/init/04_audit_eval_rls.sql

@@ -328,6 +328,31 @@ CREATE POLICY p_pinned_select ON app.pinned_fact FOR SELECT USING (
     AND current_setting('app.current_ai_view', true) = ANY(visible_to) )
   OR app.current_role_name() IN ('admin','instructor')
 );
+DROP POLICY IF EXISTS p_pinned_insert ON app.pinned_fact;
+CREATE POLICY p_pinned_insert ON app.pinned_fact FOR INSERT WITH CHECK (
+  app.current_role_name() IN ('admin','instructor')
+  OR EXISTS (
+    SELECT 1 FROM app.case_profile cp
+    WHERE cp.case_id = app.pinned_fact.case_id
+      AND cp.learner_id = app.current_uid()
+  )
+);
+DROP POLICY IF EXISTS p_pinned_update ON app.pinned_fact;
+CREATE POLICY p_pinned_update ON app.pinned_fact FOR UPDATE USING (
+  app.current_role_name() IN ('admin','instructor')
+  OR EXISTS (
+    SELECT 1 FROM app.case_profile cp
+    WHERE cp.case_id = app.pinned_fact.case_id
+      AND cp.learner_id = app.current_uid()
+  )
+) WITH CHECK (
+  app.current_role_name() IN ('admin','instructor')
+  OR EXISTS (
+    SELECT 1 FROM app.case_profile cp
+    WHERE cp.case_id = app.pinned_fact.case_id
+      AND cp.learner_id = app.current_uid()
+  )
+);
 
 -- ── learner_profile: 학습자=본인, persistent_gaps 는 응답단 필터 ──
 ALTER TABLE app.learner_profile ENABLE ROW LEVEL SECURITY;