chore: merge related migrations into one

Author: mbani01

backend/src/database/migrations/U1771597150__addExportedAtToSnowflakeExport.sql

@@ -1,17 +1,17 @@
 CREATE TABLE integration."snowflakeExportJobs" (
   id BIGSERIAL PRIMARY KEY,
   platform VARCHAR(100) NOT NULL,
-  s3_path TEXT NOT NULL,
-  "totalRows" BIGINT NOT NULL DEFAULT 0,
-  "totalBytes" BIGINT NOT NULL DEFAULT 0,
+  s3_path TEXT NOT NULL UNIQUE,
+  metrics JSONB,
   "createdAt" TIMESTAMP WITH TIME ZONE NOT NULL DEFAULT NOW(),
   "updatedAt" TIMESTAMP WITH TIME ZONE NOT NULL DEFAULT NOW(),
   "processingStartedAt" TIMESTAMP WITH TIME ZONE, -- set when worker claims job (acts as lock)
+  "exportStartedAt" TIMESTAMP WITH TIME ZONE,
   "completedAt" TIMESTAMP WITH TIME ZONE,
   "cleanedAt" TIMESTAMP WITH TIME ZONE,
   error TEXT
 );
 
 CREATE INDEX "idx_snowflakeExportJobs_platform" ON integration."snowflakeExportJobs" (platform);
- CREATE INDEX "idx_snowflakeExportJobs_pending" ON integration."snowflakeExportJobs" ("createdAt")
+CREATE INDEX "idx_snowflakeExportJobs_pending" ON integration."snowflakeExportJobs" ("createdAt")
   WHERE "processingStartedAt" IS NULL;