CREATE TABLE "payment_receipt_manual_proposals" (
  "id" UUID NOT NULL PRIMARY KEY,
  "attachment_id" UUID NOT NULL REFERENCES "payment_batch_receipt_attachments"("id") ON DELETE RESTRICT ON UPDATE CASCADE,
  "original_verification_id" UUID NOT NULL REFERENCES "payment_receipt_verifications"("id") ON DELETE RESTRICT ON UPDATE CASCADE,
  "source_sha256" VARCHAR(64) NOT NULL,
  "source_version" INTEGER NOT NULL CHECK ("source_version" > 0),
  "status" VARCHAR(32) NOT NULL CHECK ("status" IN ('pending_review', 'association_ready', 'approved', 'rejected')),
  "proposed_by" UUID NOT NULL,
  "reviewed_by" UUID,
  "payload_encrypted" TEXT NOT NULL,
  "review_note_encrypted" TEXT,
  "created_at" TIMESTAMP(3) NOT NULL DEFAULT CURRENT_TIMESTAMP,
  "reviewed_at" TIMESTAMP(3),
  CONSTRAINT "payment_receipt_manual_review_decision_check" CHECK (
    ("status" IN ('pending_review', 'association_ready') AND "reviewed_by" IS NULL AND "reviewed_at" IS NULL)
    OR ("status" IN ('approved', 'rejected') AND "reviewed_by" IS NOT NULL AND "reviewed_at" IS NOT NULL
      AND "reviewed_by" <> "proposed_by")
  )
);
CREATE UNIQUE INDEX "payment_receipt_manual_proposals_attachment_id_source_version_key"
  ON "payment_receipt_manual_proposals"("attachment_id", "source_version");