RAG: ночная пакетная индексация эмбеддингов, очередь embedding_queue, MCP get_organization_context, снижение OLLAMA_KEEP_ALIVE

migrations/0053_embedding_queue.sql

@@ -0,0 +1,29 @@
+-- Queue for deferred RAG embedding generation (nightly batch processing)
+CREATE TABLE IF NOT EXISTS embedding_queue (
+  id SERIAL PRIMARY KEY,
+  organization_id INTEGER NOT NULL REFERENCES organizations(id) ON DELETE CASCADE,
+  entity_type VARCHAR(20) NOT NULL CHECK (entity_type IN ('form', 'task', 'task_message')),
+  entity_id INTEGER NOT NULL,
+  operation VARCHAR(20) NOT NULL DEFAULT 'upsert' CHECK (operation IN ('upsert', 'delete')),
+  created_at TIMESTAMP NOT NULL DEFAULT NOW(),
+  processed_at TIMESTAMP
+);
+
+-- Only one pending operation per entity (deduplication)
+CREATE UNIQUE INDEX IF NOT EXISTS embedding_queue_pending_entity_idx
+  ON embedding_queue(organization_id, entity_type, entity_id)
+  WHERE processed_at IS NULL;
+
+CREATE INDEX IF NOT EXISTS embedding_queue_processed_at_idx
+  ON embedding_queue(processed_at) WHERE processed_at IS NULL;
+
+CREATE INDEX IF NOT EXISTS embedding_queue_created_at_idx
+  ON embedding_queue(created_at);
+
+-- Enable tenant isolation for embedding queue
+ALTER TABLE embedding_queue ENABLE ROW LEVEL SECURITY;
+DROP POLICY IF EXISTS tenant_iso ON embedding_queue;
+CREATE POLICY tenant_iso ON embedding_queue USING (
+  current_setting('app.is_superadmin', true) = 'true'
+  OR organization_id = NULLIF(current_setting('app.current_org_id', true), '')::int
+);