chore(release): 发布 v1.9.3

- VERSION 与 web/package.json、package-lock 提升到 1.9.3
- README 版本徽章与飞牛安装包名同步到 1.9.3
- CHANGELOG 的 [Unreleased] 段落转为 [v1.9.3] - 2026-10-11

web/package-lock.json

@@ -1,12 +1,12 @@
 {
   "name": "havline-web",
-  "version": "1.9.2",
+  "version": "1.9.3",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "havline-web",
-      "version": "1.9.2",
+      "version": "1.9.3",
       "dependencies": {
         "@codemirror/commands": "^6.11.1",
         "@codemirror/lang-javascript": "^6.2.5",

web/package.json

@@ -1,7 +1,7 @@
 {
   "name": "havline-web",
   "private": true,
-  "version": "1.9.2",
+  "version": "1.9.3",
   "packageManager": "npm@10.9.4",
   "type": "module",
   "scripts": {