feat: #5 add user data schema and FTS triggers

docs/AI-USAGE.md

@@ -37,6 +37,7 @@ the part that matters most.
 | 2026-10-01 | robertky | Codex (ChatGPT) | Assisted with formulating good reviews of the architecture and UI-specification PRs. The group decided to include decade filtering; Rachel implemented the corresponding schema and documentation update in #38.                                                                                                  |
 | 2026-10-10 | evenkkl  | Claude          | Assisted with implementing the GraphQL Yoga server with `searchAlbums` for #6, and formulated an easy to understand PR description. Guided the reset of the prototype tables in the VM database (backup taken first).                                                                                             |
 | 2026-10-13 | evenkkl  | Claude          | Fixed the review feedback on #6: cursor values validated against the sort, `reviewCount` returns 0 until reviews exist. The group decided genre filters combine with AND; Claude made the filter and the genre counts match that.                                                                                 |
+| 2026-10-09 | robertky | Codex (ChatGPT) | AI was a good sparring partner when I drafted the initial #5 PostgreSQL migration. It gave me ideas on how to structure and improve the tables, relation tables, constraints, indexes, full-text search triggers and TypeScript migration runner.                                                                 |
 
 ## Notes
 

server/drizzle/0001_user-content-and-tracks.sql

@@ -0,0 +1,128 @@
+CREATE TABLE "app_user" (
+	"id" uuid PRIMARY KEY NOT NULL,
+	"display_name" text NOT NULL,
+	"created_at" timestamp with time zone DEFAULT now() NOT NULL
+);
+--> statement-breakpoint
+CREATE TABLE "crate_item" (
+	"id" serial PRIMARY KEY NOT NULL,
+	"user_id" uuid NOT NULL,
+	"album_id" integer NOT NULL,
+	"added_at" timestamp with time zone DEFAULT now() NOT NULL
+);
+--> statement-breakpoint
+CREATE TABLE "review" (
+	"id" serial PRIMARY KEY NOT NULL,
+	"user_id" uuid NOT NULL,
+	"album_id" integer NOT NULL,
+	"rating" smallint NOT NULL,
+	"comment" text DEFAULT '' NOT NULL,
+	"created_at" timestamp with time zone DEFAULT now() NOT NULL,
+	"updated_at" timestamp with time zone DEFAULT now() NOT NULL,
+	CONSTRAINT "review_rating_range" CHECK ("review"."rating" BETWEEN 1 AND 5)
+);
+--> statement-breakpoint
+CREATE TABLE "track" (
+	"id" serial PRIMARY KEY NOT NULL,
+	"album_id" integer NOT NULL,
+	"title" text NOT NULL,
+	"track_number" integer NOT NULL,
+	"duration_seconds" integer
+);
+--> statement-breakpoint
+ALTER TABLE "crate_item" ADD CONSTRAINT "crate_item_user_id_app_user_id_fk" FOREIGN KEY ("user_id") REFERENCES "public"."app_user"("id") ON DELETE cascade ON UPDATE no action;--> statement-breakpoint
+ALTER TABLE "crate_item" ADD CONSTRAINT "crate_item_album_id_album_id_fk" FOREIGN KEY ("album_id") REFERENCES "public"."album"("id") ON DELETE cascade ON UPDATE no action;--> statement-breakpoint
+ALTER TABLE "review" ADD CONSTRAINT "review_user_id_app_user_id_fk" FOREIGN KEY ("user_id") REFERENCES "public"."app_user"("id") ON DELETE cascade ON UPDATE no action;--> statement-breakpoint
+ALTER TABLE "review" ADD CONSTRAINT "review_album_id_album_id_fk" FOREIGN KEY ("album_id") REFERENCES "public"."album"("id") ON DELETE cascade ON UPDATE no action;--> statement-breakpoint
+ALTER TABLE "track" ADD CONSTRAINT "track_album_id_album_id_fk" FOREIGN KEY ("album_id") REFERENCES "public"."album"("id") ON DELETE cascade ON UPDATE no action;--> statement-breakpoint
+CREATE UNIQUE INDEX "crate_item_user_album_unique" ON "crate_item" USING btree ("user_id","album_id");--> statement-breakpoint
+CREATE INDEX "crate_item_user_added_at_idx" ON "crate_item" USING btree ("user_id","added_at","id");--> statement-breakpoint
+CREATE UNIQUE INDEX "review_user_album_unique" ON "review" USING btree ("user_id","album_id");--> statement-breakpoint
+CREATE INDEX "review_album_idx" ON "review" USING btree ("album_id");--> statement-breakpoint
+CREATE UNIQUE INDEX "track_album_track_number_unique" ON "track" USING btree ("album_id","track_number");--> statement-breakpoint
+CREATE INDEX "track_album_track_number_idx" ON "track" USING btree ("album_id","track_number");
+--> statement-breakpoint
+CREATE FUNCTION set_album_search_vector()
+RETURNS trigger
+LANGUAGE plpgsql
+AS $$
+BEGIN
+  NEW.search_vector :=
+    setweight(to_tsvector('simple', NEW.title), 'A') ||
+    setweight(
+      to_tsvector(
+        'simple',
+        COALESCE((
+          SELECT string_agg(artist.name, ' ')
+          FROM album_artist
+          JOIN artist ON artist.id = album_artist.artist_id
+          WHERE album_artist.album_id = NEW.id
+        ), '')
+      ),
+      'B'
+    );
+  RETURN NEW;
+END;
+$$;
+--> statement-breakpoint
+CREATE TRIGGER album_search_vector_before_write
+BEFORE INSERT OR UPDATE OF title ON album
+FOR EACH ROW EXECUTE FUNCTION set_album_search_vector();
+--> statement-breakpoint
+CREATE FUNCTION refresh_album_search_vector_from_artist_link()
+RETURNS trigger
+LANGUAGE plpgsql
+AS $$
+DECLARE
+  target_album_id integer;
+BEGIN
+  IF TG_OP = 'DELETE' THEN
+    target_album_id := OLD.album_id;
+  ELSE
+    target_album_id := NEW.album_id;
+  END IF;
+
+  UPDATE album
+  SET title = title
+  WHERE id = target_album_id;
+  RETURN NULL;
+END;
+$$;
+--> statement-breakpoint
+CREATE TRIGGER album_artist_refresh_search_vector
+AFTER INSERT OR UPDATE OR DELETE ON album_artist
+FOR EACH ROW EXECUTE FUNCTION refresh_album_search_vector_from_artist_link();
+--> statement-breakpoint
+CREATE FUNCTION refresh_album_search_vector_from_artist()
+RETURNS trigger
+LANGUAGE plpgsql
+AS $$
+BEGIN
+  UPDATE album
+  SET title = title
+  WHERE id IN (
+    SELECT album_id FROM album_artist WHERE artist_id = NEW.id
+  );
+  RETURN NEW;
+END;
+$$;
+--> statement-breakpoint
+CREATE TRIGGER artist_refresh_search_vector
+AFTER UPDATE OF name ON artist
+FOR EACH ROW EXECUTE FUNCTION refresh_album_search_vector_from_artist();
+--> statement-breakpoint
+CREATE FUNCTION set_review_updated_at()
+RETURNS trigger
+LANGUAGE plpgsql
+AS $$
+BEGIN
+  NEW.updated_at := now();
+  RETURN NEW;
+END;
+$$;
+--> statement-breakpoint
+CREATE TRIGGER review_set_updated_at
+BEFORE UPDATE ON review
+FOR EACH ROW EXECUTE FUNCTION set_review_updated_at();
+--> statement-breakpoint
+UPDATE album SET title = title;