chore: initial scaffold

src/assets/icons/README.md

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+# Icons
+
+Reusable in-app icons. Source: https://tabler.io/icons (outline variant by default).
+
+## Add an icon
+
+1. Find the icon on https://tabler.io/icons, click it, copy the SVG (or download).
+2. Save it here as `<slug>.svg` — same slug Tabler uses (`bolt.svg`, `qrcode.svg`).
+3. Keep `stroke="currentColor"` in the SVG so colour follows Tailwind classes.
+
+## Use an icon
+
+Static colour (cheapest, no extra component):
+
+```vue
+<img src="@/assets/icons/bolt.svg" alt="" class="size-5" />
+```
+
+Dynamic colour (needs `currentColor` to flow through — paste the SVG inline as a component):
+
+```vue
+<template>
+  <svg class="size-5 text-primary" viewBox="0 0 24 24" fill="none"
+       stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round">
+    <!-- paste paths from the Tabler SVG here -->
+  </svg>
+</template>
+```
+
+The favicon at `public/favicon.svg` was generated from this same icon set with `currentColor` replaced by the app's primary hex at scaffold time.