Stamp 2.53.0 after site, legal, OG, and BFF rewrite.

Excel export headers are mutable for tsc. Changelog and APP_VERSION match the native frontend overlay.

periscope/dependency/frontend/content/changelog.md

@@ -2,6 +2,14 @@
 
 What's new in Periscope.
 
+## 2.53.0 — 2026-09-20 — Native site, legal shells, OG, and Next BFF
+
+`lib/site.ts`, `version.ts`, `report-export.ts`, legal page chrome, Open Graph images, and the local `/api/projects` `/api/report/[id]` `/api/graph/[id]` BFF routes are original Periscope code in `periscope/src/frontend`. Inherited copies stay on disk. Clerk `proxy.ts`, shadcn `components/ui/*`, billing, Reddit pixels, and auth/JWT are unchanged. Pad≠Via unchanged.
+
+- [New] Site identity, version stamp, and findings Excel export rewrite.
+- [New] Legal/changelog/file-guide shells and OG image rewrite.
+- [New] Local Next BFF JSON routes rewrite; Clerk proxy stays the open-core seam.
+
 ## 2.52.0 — 2026-09-20 — Native leftover frontend overlay
 
 Dashboard, project, report, progress, admin, feedback, marketing, and the HTTP client (`lib/api.ts`, `types.ts`) are original Periscope UI in `periscope/src/frontend`. Docker still copies OSS then src. Routes, API contracts, and layout are unchanged. Billing/Clerk/analytics stay imported seams. Auth/JWT untouched. Pad≠Via unchanged.

periscope/src/frontend/src/lib/report-export.ts

@@ -4,7 +4,7 @@ import * as XLSX from "xlsx";
 import type { DesignGraph, Finding, ValidationReport } from "./types";
 import { sortFindings } from "./utils";
 
-const COLUMNS = [
+const COLUMNS: string[] = [
   "Designator",
   "MPN",
   "ID",
@@ -16,7 +16,7 @@ const COLUMNS = [
   "Net",
   "Pins",
   "Rule",
-] as const;
+];
 
 const WIDTHS = [12, 20, 12, 10, 44, 60, 50, 24, 16, 16, 14];
 

periscope/src/frontend/src/lib/version.ts

@@ -1,3 +1,3 @@
 /** Stamped from content/changelog.md by scripts/sync-version.mjs. */
-export const APP_VERSION = "2.52.0";
+export const APP_VERSION = "2.53.0";
 export const APP_VERSION_DATE = "2026-09-20";