fix(migrations): add missing migration for document table (#1080)

* fix(migrations): add missing migration for document table

* add newline at end of file

Author: icecrasher321

apps/sim/db/migrations/0077_missing_doc_processing.sql

@@ -0,0 +1,5 @@
+ALTER TABLE "document" ADD COLUMN IF NOT EXISTS "processing_status" text DEFAULT 'pending' NOT NULL;
+ALTER TABLE "document" ADD COLUMN IF NOT EXISTS "processing_started_at" timestamp;
+ALTER TABLE "document" ADD COLUMN IF NOT EXISTS "processing_completed_at" timestamp;
+ALTER TABLE "document" ADD COLUMN IF NOT EXISTS "processing_error" text;
+CREATE INDEX IF NOT EXISTS "doc_processing_status_idx" ON "document" USING btree ("knowledge_base_id","processing_status");