docs(quoteforge[image-block]): document the image block in schema docs and README

Author: lordvins226

README.md

@@ -288,6 +288,7 @@ Create your own: `quoteforge themes create my-brand`
 | `callout` | Rounded box highlight | `items[]{label, text}` |
 | `divider` | Full-width horizontal rule | — |
 | `spacer` | Vertical whitespace | `size: sm\|md\|lg` |
+| `image` | Inline image (URL, local path, or data-URI) | `src`, `alt?`, `width: sm\|md\|lg\|full`, `align: left\|center\|right` |
 
 ### Inline Part Styles
 

site/src/docs/content-schema.mdx

@@ -53,7 +53,7 @@ Each slide inherits from `defaults`; any field on the slide overrides it. Slides
 
 ## Block types
 
-Seven block types live in `BlockSchema`:
+Eight block types live in `BlockSchema`:
 
 ### `headline` — display text
 ```json
@@ -118,6 +118,30 @@ Seven block types live in `BlockSchema`:
 
 `size` is `"sm" | "md" | "lg"`.
 
+### `image` — inline image
+```json
+{
+  "id": "img",
+  "type": "image",
+  "src": "./logo.svg",
+  "alt": "Company logo",
+  "width": "md",
+  "align": "center"
+}
+```
+
+- `src` — a remote URL (`https://…`), a local file path, or a `data:` URI. Local
+  paths are resolved relative to the content file's directory and inlined at render
+  time (`png`/`jpg`/`jpeg`/`webp`/`gif`/`svg`). For security, the Studio server only
+  accepts `http(s):`/`data:` sources — local file paths work via the CLI only.
+- `alt` — optional alternative text.
+- `width` — `"sm" | "md" | "lg" | "full"` (33% / 50% / 75% / 100% of the content
+  column). Defaults to `"full"`.
+- `align` — `"left" | "center" | "right"`. Defaults to `"center"`.
+
+In the Studio, add an Image block and either paste a URL or upload a file (the upload
+is embedded as a `data:` URI, so the card stays self-contained).
+
 ## Part styles
 
 `headline` and `blockquote` blocks hold an array of **parts**, each styled independently:

site/src/docs/templates.mdx

@@ -30,7 +30,7 @@ All templates **inherit a shared base CSS** (`templates/_base.css`) that handles
 - Flex-based top-to-bottom block distribution
 - Dimension-aware font scaling
 - Puppeteer-ready font loading gates
-- Callout, divider, spacer, and quote rendering
+- Callout, divider, spacer, quote, and image rendering (image width + alignment)
 
 Template CSS only adds personality on top — letter-spacing, border weights, radius tweaks.