feat: complete SOP execution workflow

migrations/000002_bind_knowledge_versions.up.sql

@@ -0,0 +1,25 @@
+UPDATE sop_nodes n
+JOIN sop_versions sv ON sv.id = n.sop_version_id
+SET n.config = JSON_SET(
+  n.config,
+  '$.knowledge_card_version_id',
+  (
+    SELECT kv.id
+    FROM knowledge_card_versions kv
+    WHERE kv.tenant_id = n.tenant_id
+      AND kv.knowledge_card_id = CAST(JSON_UNQUOTE(JSON_EXTRACT(n.config, '$.knowledge_card_id')) AS UNSIGNED)
+      AND kv.created_at <= COALESCE(sv.published_at, sv.updated_at)
+    ORDER BY kv.version DESC
+    LIMIT 1
+  )
+)
+WHERE n.type = 'knowledge'
+  AND JSON_EXTRACT(n.config, '$.knowledge_card_version_id') IS NULL
+  AND JSON_EXTRACT(n.config, '$.knowledge_card_id') IS NOT NULL
+  AND EXISTS (
+    SELECT 1
+    FROM knowledge_card_versions kv
+    WHERE kv.tenant_id = n.tenant_id
+      AND kv.knowledge_card_id = CAST(JSON_UNQUOTE(JSON_EXTRACT(n.config, '$.knowledge_card_id')) AS UNSIGNED)
+      AND kv.created_at <= COALESCE(sv.published_at, sv.updated_at)
+  );