optimize images and move posts to subfolders

source/admin/config.yml

@@ -72,11 +72,36 @@ common_col_conf: &common_col_conf
 collections:
   - name: "202508"
     label: "2025年8月"
-    folder: "source/_posts/2025.08"
+    folder: "source/_posts/2025/2025.08"
     preview_path: "{{abbrlink}}/"
     <<: *common_col_conf
   - name: "202509"
     label: "2025年9月"
-    folder: "source/_posts/2025.09"
+    folder: "source/_posts/2025/2025.09"
+    preview_path: "{{abbrlink}}/"
+    <<: *common_col_conf
+  - name: "202510"
+    label: "2025年10月"
+    folder: "source/_posts/2025/2025.10"
+    preview_path: "{{abbrlink}}/"
+    <<: *common_col_conf
+  - name: "202511"
+    label: "2025年11月"
+    folder: "source/_posts/2025/2025.11"
+    preview_path: "{{abbrlink}}/"
+    <<: *common_col_conf
+  - name: "202512"
+    label: "2025年12月"
+    folder: "source/_posts/2025/2025.12"
+    preview_path: "{{abbrlink}}/"
+    <<: *common_col_conf
+  - name: "202601"
+    label: "2026年1月"
+    folder: "source/_posts/2026.01"
+    preview_path: "{{abbrlink}}/"
+    <<: *common_col_conf
+  - name: "202602"
+    label: "2026年2月"
+    folder: "source/_posts/2026/2026.02"
     preview_path: "{{abbrlink}}/"
     <<: *common_col_conf