feat: add non-markdown files to metadata endpoints

- Added support for non-markdown files (images, PDFs, code, etc) in vault metadata endpoints
- Implemented filesystem scanning for non-markdown files with configurable extension whitelist
- Added deduplication by file path to prevent duplicates between Meilisearch and filesystem
- Enhanced folder filtering and kind filtering to properly handle non-markdown files
- Added validation to remove stale entries not present on disk
- Improved logging to track

vault/.obsidian/workspace.json

@@ -4,19 +4,21 @@
     "type": "split",
     "children": [
       {
-        "id": "511c66a5c96502b2",
+        "id": "8fed617eb7df1a3f",
         "type": "tabs",
         "children": [
           {
-            "id": "8309e5042a8fb85c",
+            "id": "2e9abbba0bbc33e1",
             "type": "leaf",
             "state": {
-              "type": "excalidraw",
+              "type": "markdown",
               "state": {
-                "file": "dessin.excalidraw.md"
+                "file": "Allo-3/Nouveau-markdown.md",
+                "mode": "source",
+                "source": false
               },
-              "icon": "excalidraw-icon",
-              "title": "dessin.excalidraw"
+              "icon": "lucide-file",
+              "title": "Nouveau-markdown"
             }
           }
         ]
@@ -76,7 +78,7 @@
       }
     ],
     "direction": "horizontal",
-    "width": 394.5
+    "width": 225.5
   },
   "right": {
     "id": "3932036feebc690d",
@@ -176,9 +178,26 @@
       "obsidian-excalidraw-plugin:New drawing": false
     }
   },
-  "active": "8309e5042a8fb85c",
+  "active": "2e9abbba0bbc33e1",
   "lastOpenFiles": [
+    "test-regular.md.bak",
+    "test-task.md.bak",
+    "test-favorite.md.bak",
+    "test-template.md.bak",
+    "test-regular.md",
+    "test-task.md",
+    "test-template.md",
+    "test-favorite.md",
+    "mixe/Dessin-02.png",
+    "Allo-3/page test.md",
+    "titi/Nouveau-markdown.md",
+    "Allo-3/Nouveau-markdown.md.tmp",
+    "Allo-3/Nouveau-markdown.md.bak",
+    "Allo-3/Nouveau-markdown.md",
+    "tata/test2.md",
     "dessin.excalidraw.md",
+    "toto/test/Nouvelle note 2 copy.md",
+    "titi/92284.pdf",
     "Dessin-02.png",
     "mixe/Relaxing Music relax music music _hls-480_.mp4",
     "Dessin-02.excalidraw.md",
@@ -188,19 +207,13 @@
     "mixe/ThinkBook_16_G7_ARP_Spec.pdf",
     "mixe/Claude_ObsiViewer_V1.png",
     "mixe/image_no_bg_clean.svg",
-    "mixe/dessin.json",
-    "mixe",
-    "New folder",
     "Drawing-20251028-1452.png",
-    "Drawing-20251028-1452.excalidraw.md.bak",
     "dessin.svg",
     "dessin.png",
-    "dessin.excalidraw.md.bak",
     "dessin_05.svg",
     "dessin_05.png",
     "dessin_05.excalidraw.md",
     "dessin_03.excalidraw.md",
-    "dessin_05.excalidraw.md.bak",
     "dessin_04.excalidraw.md",
     "dessin-002.excalidraw.md",
     "Dessin_001.excalidraw.md",
@@ -212,15 +225,6 @@
     "Drawing-20251027-2201.excalidraw.md",
     "Dessin-03.md.excalidraw.md",
     "Dessin-01.excalidraw.md",
-    "Drawing 2025-10-27 19.22.35.excalidraw.md",
-    "Nouveau-markdown.md",
-    "Drawing-20251027-1922.excalidraw.md",
-    "Nouvelle note 16.md",
-    "Dessin.excalidraw.md",
-    "Dessin.excalidraw.restored.md",
-    "HOME.md",
-    "Drawing-20251027-1914.excalidraw.md",
-    "Drawing-20251027-1705.excalidraw.md",
     "Untitled.canvas"
   ]
 }