improvement(logs): state machine of workflow execution (#2560)

* improvement(logs): state machine of workflow execution

* cleanup more code

* fallback consistency

* fix labels

* backfill in migration correctly

* make streaming stop in chat window correctly

packages/db/migrations/0132_dazzling_leech.sql

@@ -0,0 +1,7 @@
+ALTER TABLE "workflow_execution_logs" ADD COLUMN "status" text DEFAULT 'running' NOT NULL;--> statement-breakpoint
+UPDATE "workflow_execution_logs" 
+SET "status" = CASE 
+  WHEN "level" = 'error' THEN 'failed'
+  WHEN "ended_at" IS NOT NULL THEN 'completed'
+  ELSE 'running'
+END;

packages/db/migrations/meta/_journal.json

@@ -918,6 +918,13 @@
       "when": 1766460889694,
       "tag": "0131_illegal_nova",
       "breakpoints": true
+    },
+    {
+      "idx": 132,
+      "version": "7",
+      "when": 1766529613309,
+      "tag": "0132_dazzling_leech",
+      "breakpoints": true
     }
   ]
 }

packages/db/schema.ts

@@ -304,8 +304,9 @@ export const workflowExecutionLogs = pgTable(
       { onDelete: 'set null' }
     ),
 
-    level: text('level').notNull(), // 'info', 'error'
-    trigger: text('trigger').notNull(), // 'api', 'webhook', 'schedule', 'manual', 'chat'
+    level: text('level').notNull(), // 'info' | 'error'
+    status: text('status').notNull().default('running'), // 'running' | 'pending' | 'completed' | 'failed' | 'cancelled'
+    trigger: text('trigger').notNull(), // 'api' | 'webhook' | 'schedule' | 'manual' | 'chat'
 
     startedAt: timestamp('started_at').notNull(),
     endedAt: timestamp('ended_at'),