refactor(release-notes): give every release a number and a commit

The version strings are dates ("2026.11.01"), so a release has no
identity that is not a date. Every entry now also carries a release
number and the short SHA of the commit it went out with.

The date-shaped version string is left in place for now — the popup
switches over and drops it in the next commit, so this one stays
green on its own.

A test holds the numbering unique, contiguous and newest-first, and
holds every commit to a real SHA.

src/lib/release-notes.test.ts

@@ -0,0 +1,34 @@
+import { describe, expect, it } from "vitest";
+
+import { LATEST_RELEASE, RELEASE_NOTES } from "./release-notes";
+
+describe("the release-note registry", () => {
+  it("numbers the releases 1..N with no gaps and no duplicates", () => {
+    const numbers = RELEASE_NOTES.map((r) => r.release);
+
+    expect(new Set(numbers).size).toBe(numbers.length);
+    expect([...numbers].sort((a, b) => a - b)).toEqual(
+      Array.from({ length: RELEASE_NOTES.length }, (_, i) => i + 1)
+    );
+  });
+
+  it("keeps the newest release at the top of the list", () => {
+    const numbers = RELEASE_NOTES.map((r) => r.release);
+
+    expect(numbers).toEqual([...numbers].sort((a, b) => b - a));
+    expect(LATEST_RELEASE).toBe(RELEASE_NOTES[0]);
+  });
+
+  it("gives every release a commit SHA", () => {
+    for (const release of RELEASE_NOTES) {
+      expect(release.commit).toMatch(/^[0-9a-f]{7,40}$/);
+    }
+  });
+
+  it("gives every release a headline and at least one item", () => {
+    for (const release of RELEASE_NOTES) {
+      expect(release.title.length).toBeGreaterThan(0);
+      expect(release.items.length).toBeGreaterThan(0);
+    }
+  });
+});

src/lib/release-notes.ts

@@ -13,9 +13,19 @@
  */
 
 export interface ReleaseNote {
-  /** Version marker. Bump this to re-notify operators. */
+  /** Version marker. Bumped to re-notify operators. */
   version: string;
-  /** ISO date (YYYY-MM-DD) of the release. */
+  /**
+   * Release number. 1 = the first release. This replaces the date-shaped
+   * `version` string and becomes the "seen" marker.
+   */
+  release: number;
+  /** Short SHA of the commit this release went out with. */
+  commit: string;
+  /**
+   * Authoring reference only — the day the release was written up.
+   * Deliberately never rendered: the popup carries no dates.
+   */
   date: string;
   /** One-line headline for the release. */
   title: string;
@@ -26,6 +36,8 @@ export interface ReleaseNote {
 export const RELEASE_NOTES: ReleaseNote[] = [
   {
     version: "2026.11.01",
+    release: 5,
+    commit: "139ea25",
     date: "2026-11-01",
     title: "Delivery Pool, letterhead lock and a dark mode section",
     items: [
@@ -38,6 +50,8 @@ export const RELEASE_NOTES: ReleaseNote[] = [
   },
   {
     version: "2026.10.30",
+    release: 4,
+    commit: "83aec14",
     date: "2026-10-30",
     title: "Collection Confirm gets a second pair of eyes",
     items: [
@@ -49,6 +63,8 @@ export const RELEASE_NOTES: ReleaseNote[] = [
   },
   {
     version: "2026.10.28",
+    release: 3,
+    commit: "3eea87e",
     date: "2026-10-28",
     title: "Auto-push and a shortcut to AI settings",
     items: [
@@ -58,6 +74,8 @@ export const RELEASE_NOTES: ReleaseNote[] = [
   },
   {
     version: "2026.10.26",
+    release: 2,
+    commit: "b212d0f",
     date: "2026-10-26",
     title: "A phone board for the managers",
     items: [
@@ -67,6 +85,8 @@ export const RELEASE_NOTES: ReleaseNote[] = [
   },
   {
     version: "2026.10.24",
+    release: 1,
+    commit: "55cc7fa",
     date: "2026-10-24",
     title: "One POS matcher, AI-only quote matching",
     items: [