feat: blob images

lexicons/space/litenote/note.json

@@ -1,14 +1,14 @@
 {
+  "lexicon": 1,
+  "id": "space.litenote.note",
   "defs": {
     "main": {
+      "type": "record",
       "description": "A markdown blog post with LaTeX, GitHub notes, Mermaid, YouTube and Bluesky extensions.",
       "key": "tid",
       "record": {
         "type": "object",
-        "required": [
-          "title",
-          "content"
-        ],
+        "required": ["title", "content"],
         "properties": {
           "title": {
             "type": "string",
@@ -16,9 +16,15 @@
           },
           "content": {
             "type": "string",
-            "description": "Markdown content of the blog post",
+            "description": "Markdown content. Local image paths are replaced with blob CIDs at publish time.",
             "maxLength": 10000
           },
+          "images": {
+            "type": "array",
+            "description": "Blob references for images embedded in the markdown content.",
+            "items": { "type": "ref", "ref": "#image" },
+            "maxLength": 20
+          },
           "publishedAt": {
             "type": "string",
             "format": "datetime"
@@ -28,10 +34,24 @@
             "format": "datetime"
           }
         }
-      },
-      "type": "record"
+      }
+    },
+    "image": {
+      "type": "object",
+      "descriptions": "Images from the markdown content, separately uploaded and link in markdown content with blob CID.",
+      "required": ["image"],
+      "properties": {
+        "image": {
+          "type": "blob",
+          "accept": ["image/*"],
+          "maxSize": 2000000
+        },
+        "alt": {
+          "type": "string",
+          "maxLength": 2000,
+          "description": "Alt text for the image."
+        }
+      }
     }
-  },
-  "id": "space.litenote.note",
-  "lexicon": 1
-}
+  }
+}