feat(docver): add document versioning API (docx+pdf in MinIO)

Stand-alone API group at /api/documents/{docId}/versions — one document
per docId (unique), each version stores .docx + optional .pdf as MinIO
objects with uploader userId/userName/createdAt (no auth, like
api/template; callers identify themselves per docs/PLAN-DOCVER.md).

- POST versions (multipart): validates fields/magic bytes/100MB cap,
  uploads to MinIO first, cleans up objects if the DB insert fails;
  returns {hasPdf, versionId, versionNumber} with server-authoritative
  numbering (tx: upsert + SELECT FOR UPDATE, safe under parallel calls)
- GET versions: DocumentVersionDTO[] newest-first (404 for unknown docId)
- GET versions/{versionId}/download-link?format=docx|pdf: presigned URL
  (docId+versionId matched together; pdf-missing = 404)
- tables documents/document_versions + migration drizzle/0005
- docker-compose.yml: judes-note-db + judes-note-minio (quay.io image,
  host ports 19000/19001, POSTGRES_DB ecourt-note, pinned volume names)
- lib/openapi.ts: documents tag + paths for Swagger UI
- middleware: exempt api/documents from login redirect
- unit tests tests/lib/document-versioning.test.ts (23 cases)

wordaddin untouched — swap the mock later via NEXT_PUBLIC_ADDIN_API_BASE_URL.

Co-Authored-By: Claude Code <noreply@anthropic.com>

drizzle/0005_icy_bloodaxe.sql

@@ -0,0 +1,29 @@
+CREATE TABLE "document_versions" (
+	"id" uuid PRIMARY KEY DEFAULT gen_random_uuid() NOT NULL,
+	"document_id" uuid NOT NULL,
+	"version_number" integer NOT NULL,
+	"client_version_id" text,
+	"content_hash" text NOT NULL,
+	"message" text,
+	"fields" jsonb,
+	"template_id" text,
+	"file_name" text,
+	"docx_object_key" text NOT NULL,
+	"pdf_object_key" text,
+	"docx_size" integer NOT NULL,
+	"pdf_size" integer,
+	"user_id" text NOT NULL,
+	"user_name" text NOT NULL,
+	"created_at" timestamp with time zone DEFAULT now() NOT NULL
+);
+--> statement-breakpoint
+CREATE TABLE "documents" (
+	"id" uuid PRIMARY KEY DEFAULT gen_random_uuid() NOT NULL,
+	"doc_id" text NOT NULL,
+	"created_at" timestamp with time zone DEFAULT now() NOT NULL
+);
+--> statement-breakpoint
+ALTER TABLE "document_versions" ADD CONSTRAINT "document_versions_document_id_documents_id_fk" FOREIGN KEY ("document_id") REFERENCES "public"."documents"("id") ON DELETE cascade ON UPDATE no action;--> statement-breakpoint
+CREATE UNIQUE INDEX "document_versions_document_number_key" ON "document_versions" USING btree ("document_id","version_number");--> statement-breakpoint
+CREATE INDEX "document_versions_document_created_idx" ON "document_versions" USING btree ("document_id","created_at");--> statement-breakpoint
+CREATE UNIQUE INDEX "documents_doc_id_key" ON "documents" USING btree ("doc_id");