docs(compose): valid CDN URLs in all examples

jobs/compose.mdx

@@ -142,7 +142,7 @@
 </CodeGroup>
 
 <Info>
 **Assets:** video, image, text, audio, composition · **Output:** mp4 / webm / gif / mp3 (audio only) / jpg / png (still frame)
 </Info>
 
 Without `trim`, a clip plays its source from the start for `length` seconds. To use a specific segment instead, add `trim: { from, to }` (in source seconds) to the asset. `length` is always the timeline duration. `trim` only chooses which part of the source fills it.
@@ -155,9 +155,9 @@
 
 ```json
 "clips": [
-  { "asset": { "type": "video", "src": "a.mp4" }, "start": 0, "length": 3 },
+  { "asset": { "type": "video", "src": "https://cdn.rendobar.com/assets/examples/sample.mp4" }, "start": 0, "length": 3 },
   { "type": "transition", "transition": "crossfade", "duration": 1 },
-  { "asset": { "type": "video", "src": "b.mp4" }, "start": 2, "length": 3 }
+  { "asset": { "type": "video", "src": "https://cdn.rendobar.com/assets/examples/sample.mp4" }, "start": 2, "length": 3 }
 ]
 ```
 
@@ -201,7 +201,7 @@
 ```json
 "tracks": [
   { "clips": [
-    { "asset": { "type": "video", "src": "a.mp4" }, "start": 0, "length": 5 }
+    { "asset": { "type": "video", "src": "https://cdn.rendobar.com/assets/examples/sample.mp4" }, "start": 0, "length": 5 }
   ] },
   { "clips": [
     { "asset": { "type": "text", "text": "Coastal Escape", "style": { "size": 84 } },
@@ -216,7 +216,7 @@
 
 ```json
 {
-  "asset": { "type": "video", "src": "a.mp4" },
+  "asset": { "type": "video", "src": "https://cdn.rendobar.com/assets/examples/sample.mp4" },
   "start": 0,
   "length": 5,
   "color": { "saturation": 1.2, "temperature": 6800 },
@@ -311,11 +311,11 @@
 {
   "scenes": [
     { "duration": 4, "transition": { "transition": "crossfade", "duration": 0.6 },
-      "clips": [{ "asset": { "type": "video", "src": "a.mp4" } }] },
-    { "duration": 4, "clips": [{ "asset": { "type": "video", "src": "b.mp4" } }] }
+      "clips": [{ "asset": { "type": "video", "src": "https://cdn.rendobar.com/assets/examples/sample.mp4" } }] },
+    { "duration": 4, "clips": [{ "asset": { "type": "video", "src": "https://cdn.rendobar.com/assets/examples/sample.mp4" } }] }
   ],
   "overlays": [
-    { "asset": { "type": "image", "src": "logo.png" }, "start": 0, "length": 8,
+    { "asset": { "type": "image", "src": "https://cdn.rendobar.com/assets/brand/logo-mark.png" }, "start": 0, "length": 8,
       "transform": { "scale": 0.2, "position": { "x": "88%", "y": "12%" } } }
   ]
 }
@@ -356,13 +356,13 @@
 
 | Field | What it does |
 | --- | --- |
 | `opacity` | `0`..`1`, or keyframes `[{ time, value, easing: step \| linear \| smooth }]` |
 | `transform` | `position {x,y}`, `scale`, `rotate`, `anchor` (`center` \| `topLeft`), `fit` (`contain` \| `fill`), `animateTo` (Ken Burns end state) |
 | `crop` | `top` / `right` / `bottom` / `left`, each a percent string like `"10%"` |
 | `speed` | playback rate (`0.5` = slow motion, `2` = fast, and pitch shifts with speed) |
 | `color` | `brightness` (-1..1), `contrast` (0..4), `saturation` (0..3), `gamma` (0.1..10), `hue` (-180..180), `temperature` (1000..40000 K) |
 | `filter` | `greyscale`, `negative`, `boost`, `muted`, `lighten`, `darken`, `contrast` (mutually exclusive with `color`) |
 | `blur` / `sharpen` | gaussian blur strength / unsharp amount |
 | `chromaKey` | `color` (hex), `similarity` (0..1) |
 | `blendMode` | `normal`, `multiply`, `screen`, `overlay`, `darken`, `lighten`, `add`, `difference` |
 | `pan` | stereo balance, `-1` (left) to `1` (right) |