feat: add image alignment toolbar with dedicated icons and size controls

- Replaced generic alignment buttons with custom image-specific icons (left/center/right/full width)
- Added "Default size" button to reset image dimensions and aspect ratio
- Implemented modal dialogs for image info and caption editing to replace browser prompts
- Enhanced lateral drop detection to create 2-column layouts when dragging blocks side-by-side

vault/.obsidian/workspace.json

@@ -181,6 +181,8 @@
   },
   "active": "aaf62e01f34df49b",
   "lastOpenFiles": [
+    "attachments/nimbus/2025/1111/img-pasted-20251111-120357-ke3ao3.png",
+    "attachments/nimbus/2025/1111",
     "attachments/nimbus/2025/1110/img-bridger-tower-vejbbvtdgcm-unsplash-jpg-20251110-175132-92f6k8.png",
     "attachments/nimbus/2025/1110/img-image_1-png-20251110-154537-gaoaou.png",
     "attachments/nimbus/2025/1110/img-logo_obsiviewer-png-20251110-151755-r8r5qq.png",
@@ -218,7 +220,6 @@
     "big/note_497.md.bak",
     "big/note_498.md.bak",
     "big/note_495.md.bak",
-    "big/note_496.md.bak",
     "mixe/Dessin-02.png",
     "Dessin-02.png",
     "mixe/Claude_ObsiViewer_V1.png",
@@ -226,7 +227,6 @@
     "Drawing-20251028-1452.png",
     "dessin.svg",
     "dessin.png",
-    "dessin_05.svg",
     "Untitled.canvas"
   ]
 }