doc update

docs/Schemas.md

@@ -40,8 +40,6 @@ There are 2 types of schemas:
 | `label` | yes | Friendly display name |
 | `type` | yes | Must be `"files"` |
 | `fields` | yes | Array of field definitions. See [Fields](Fields.md) |
-| `disk` | no | Laravel disk name. Default: `"lucent"` |
-| `path` | no | Subdirectory for uploads. Default: schema name |
 | `groups` | no | Group IDs to split fields into tabs |
 | `isEntry` | no | Show in sidebar. Default: `false` |
 | `sortBy` | no | Default sort in browser |
@@ -51,6 +49,24 @@ There are 2 types of schemas:
 | `read` | no | Roles with read access |
 | `write` | no | Roles with write access |
 
+### File Metadata
+
+Every uploaded file is automatically stored with the following metadata (stored in `lucent_files`):
+
+| Field | Description |
+|---|---|
+| `id` | Unique file ID |
+| `recordId` | ID of the record this file belongs to |
+| `originalName` | Original filename as uploaded |
+| `mime` | MIME type e.g. `image/webp` |
+| `path` | Storage path e.g. `files/{recordId}/{filename}` |
+| `size` | File size in bytes |
+| `width` | Image width in pixels (0 for non-images) |
+| `height` | Image height in pixels (0 for non-images) |
+| `checksum` | SHA-1 hash of the file contents |
+
+Image files (jpeg, png, webp, gif, tiff) also get a 300×300 thumbnail generated automatically at `thumbs/{path}`, plus any image filter presets configured in `lucent.imageFilters`.
+
 
 ## System Fields