chs: re-add drifted files

dot_agents/skills/blume-migrate/references/mintlify.md

@@ -19,7 +19,7 @@ Resolve `$ref` includes first (Mintlify splits config across files). Map only wh
 | `name` / `title` | `title` |  |
 | `description` | `description` |  |
 | `logo` (string or `{ light, dark, href }`) | `logo` (string, or `{ image: { light, dark, alt }, text, href }`) | Mintlify's `light`/`dark` nest under Blume's `image`; ensure files land in `public/`. **If the SVG is local and monochrome** (a solid black or white mark), rewrite its `fill`/`stroke` to `currentColor` and collapse `{ light, dark }` to the string shorthand `logo: "/logo.svg"` — one file that inherits the theme text color and flips with light/dark automatically. If the logo is a **wordmark** (brand name baked in), set `text: ""` so it doesn't render twice beside `title` |
-| `favicon` (string **or `{ light, dark }`**) | **drop the field** — copy **one** file into `public/` under the conventional name (`favicon.svg`/`icon.png`) | Blume auto-detects by filename; there is **no** favicon config field, and **no** light/dark favicon — a `{ light, dark }` source collapses to one; report the loss |
+| `favicon` (string **or `{ light, dark }`**) | **drop the field** — copy the file(s) into `public/` under conventional names (`favicon.svg`/`icon.png`) | Blume auto-detects by filename; there is **no** favicon config field. A `{ light, dark }` source maps to a filename pair: light file → `public/icon.png`, dark file → its `-dark` sibling `public/icon-dark.png` (same directory and extension — convert if the formats differ) |
 | `colors.primary` + `colors.light` | `theme.accent` (`{ light, dark }`) | accent is now **per-mode**: `accent: { light: <colors.primary>, dark: <colors.light> }`. If Mintlify sets only `primary`, collapse to the string shorthand `accent: "<colors.primary>"` (applies to both modes) |
 | `colors.dark` | `theme.action` |  |
 | `appearance.default` | `theme.mode` (`light`/`dark`/`system`) |  |