S3.2: hand-placed 12x12 pixel icon set replaces lucide and reicon

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

tests/e2e/pixel-style.spec.ts

@@ -44,6 +44,12 @@ test("text uses the bundled pixel font, and the palette follows the day part, se
       const idle = rows.find((row) => !row.matches(".active, [aria-current]"))!;
       return [getComputedStyle(active, "::before").animationName, getComputedStyle(idle, "::before").animationName, getComputedStyle(idle, "::before").visibility];
     })).toEqual(["px-blink", "none", "hidden"]);
+    // Every icon on screen is a pixel glyph on the font's grid; no stroked vector icons remain.
+    expect(await page.evaluate(() => ({
+      stroked: [...document.querySelectorAll("svg")].filter((svg) => !svg.closest("canvas") && svg.getAttribute("stroke") && svg.getAttribute("stroke") !== "none").length,
+      size: getComputedStyle(document.querySelector("svg.pixel-icon")!).width === getComputedStyle(document.body).fontSize,
+    }))).toEqual({ stroked: 0, size: true });
+    expect(await page.evaluate(() => document.querySelectorAll(".nav > .nav-item").length)).toBe(await page.evaluate(() => document.querySelectorAll(".nav > .nav-item svg.pixel-icon").length));
     await page.getByRole("button", { name: "New task" }).click();
     const dialog = page.getByRole("dialog", { name: "New task" });
     await expect(dialog).toBeVisible();

tests/unit/pixel-icons.test.ts

@@ -0,0 +1,13 @@
+import { expect, test } from "vitest";
+import { PIXEL_ICONS } from "../../src/renderer/src/shared/pixel-icons";
+
+test("every icon is a 12x12 bitmap of lit and dark pixels, and no two icons are the same", () => {
+  for (const [name, bitmap] of Object.entries(PIXEL_ICONS)) {
+    const rows = bitmap.split(" ");
+    expect(rows, name).toHaveLength(12);
+    for (const row of rows) expect(row, name).toMatch(/^[#.]{12}$/);
+    expect(bitmap.includes("#"), name).toBe(true);
+  }
+  const bitmaps = Object.values(PIXEL_ICONS);
+  expect(new Set(bitmaps).size).toBe(bitmaps.length);
+});