feat(responses): let organizers correct submitted text

README.md

@@ -62,7 +62,8 @@ Re-running `bun run db:seed` resets only those two deterministic demo projects.
 4. Let a contributor recover a browser-local IndexedDB draft, including image
    files dropped onto or picked for the photo questions, agree to the privacy
    policy, and submit with an idempotency key.
-5. Review read-only submissions and permanently close collection.
+5. Review submissions, permanently close collection, and correct submitted text with visible edit
+   history when needed.
 6. Create canonical millimetre-based layouts with the Fabric.js editor.
 7. Generate and review one page per response plus optional standalone pages.
 8. Resolve blocking text, print-area, gallery, and image-resolution problems.

drizzle/20260824201805_ordinary_unicorn.sql

@@ -0,0 +1,12 @@
+CREATE TABLE "submission_edits" (
+	"id" uuid PRIMARY KEY NOT NULL,
+	"submission_id" uuid NOT NULL,
+	"editor_user_id" text NOT NULL,
+	"editor_name" text NOT NULL,
+	"changes" jsonb NOT NULL,
+	"edited_at" timestamp with time zone DEFAULT now() NOT NULL
+);
+--> statement-breakpoint
+ALTER TABLE "submissions" ADD COLUMN "revision" integer DEFAULT 0 NOT NULL;--> statement-breakpoint
+ALTER TABLE "submission_edits" ADD CONSTRAINT "submission_edits_submission_id_submissions_id_fk" FOREIGN KEY ("submission_id") REFERENCES "public"."submissions"("id") ON DELETE cascade ON UPDATE no action;--> statement-breakpoint
+CREATE INDEX "submission_edits_submission_index" ON "submission_edits" USING btree ("submission_id");