chore init

scripts/generate-icons.mjs

@@ -0,0 +1,88 @@
+import { deflateSync } from "node:zlib";
+import { writeFileSync, mkdirSync } from "node:fs";
+
+// Civetest: minimal solid-color PNG encoder (non-interlaced, 8-bit RGB)
+function crc32(buf) {
+  let c = ~0;
+  for (let n = 0; n < buf.length; n++) {
+    c ^= buf[n];
+    for (let k = 0; k < 8; k++) c = (c >>> 1) ^ (0xedb88320 & -(c & 1));
+  }
+  return ~c >>> 0;
+}
+
+function chunk(type, data) {
+  const len = Buffer.alloc(4);
+  len.writeUInt32BE(data.length, 0);
+  const typeBuf = Buffer.from(type, "ascii");
+  const crc = Buffer.alloc(4);
+  crc.writeUInt32BE(crc32(Buffer.concat([typeBuf, data])), 0);
+  return Buffer.concat([len, typeBuf, data, crc]);
+}
+
+// Simple canvas: draw background + centered white square "page" motif
+function draw(size) {
+  const bg = [37, 99, 235]; // accent #2563eb
+  const white = [255, 255, 255];
+  const rows = [];
+  for (let y = 0; y < size; y++) {
+    const row = Buffer.alloc(1 + size * 3);
+    let p = 1;
+    for (let x = 0; x < size; x++) {
+      let color = bg;
+      // white rounded "page / document" block centered
+      const margin = Math.round(size * 0.22);
+      const inner = size - margin * 2;
+      const xm = x - margin;
+      const ym = y - margin;
+      const radius = Math.round(size * 0.08);
+      if (
+        xm >= 0 &&
+        ym >= 0 &&
+        xm < inner &&
+        ym < inner &&
+        (xm <= radius || xm >= inner - radius || ym <= radius || ym >= inner - radius || Math.hypot(xm - radius, ym - radius) <= radius || Math.hypot(xm - (inner - radius), ym - radius) <= radius || Math.hypot(xm - radius, ym - (inner - radius)) <= radius || Math.hypot(xm - (inner - radius), ym - (inner - radius)) <= radius)
+      ) {
+        color = white;
+      }
+      // blue horizontal bars to suggest "CV" lines
+      const barTop = Math.round(size * 0.45);
+      const barHeight = Math.round(size * 0.06);
+      if (ym >= barTop && ym < barTop + barHeight && xm > Math.round(size * 0.32) && xm < inner - Math.round(size * 0.25)) {
+        color = bg;
+      }
+      if (ym >= barTop + barHeight * 2 && ym < barTop + barHeight * 3 && xm > Math.round(size * 0.38) && xm < inner - Math.round(size * 0.1)) {
+        color = bg;
+      }
+      row[p++] = color[0];
+      row[p++] = color[1];
+      row[p++] = color[2];
+    }
+    rows.push(row);
+  }
+  return Buffer.concat(rows);
+}
+
+function png(size, file) {
+  const raw = draw(size);
+  const ihdr = Buffer.alloc(13);
+  ihdr.writeUInt32BE(size, 0);
+  ihdr.writeUInt32BE(size, 4);
+  ihdr[8] = 8; // bit depth
+  ihdr[9] = 2; // color type RGB
+  ihdr[10] = 0;
+  ihdr[11] = 0;
+  ihdr[12] = 0;
+  const png = Buffer.concat([
+    Buffer.from([137, 80, 78, 71, 13, 10, 26, 10]),
+    chunk("IHDR", ihdr),
+    chunk("IDAT", deflateSync(raw, { level: 9 })),
+    chunk("IEND", Buffer.alloc(0)),
+  ]);
+  writeFileSync(file, png);
+  console.log(`generated ${file} (${size}x${size})`);
+}
+
+mkdirSync("./public/icons", { recursive: true });
+png(192, "./public/icons/icon-192.png");
+png(512, "./public/icons/icon-512.png");