release: v0.1.2

- bundle dshmarket 1.10.1; drop the duplicate vision settings section (modlens card is the single config surface)
- embed the updater signing public key in every build (Makefile / CI / Flatpak); in-app updates now actually run
- structured release notes per version: docs/release-notes/v<version>.md feeds GitHub, Gitea and the in-app update panel
- gate releases on the notes file; Gitea publish reads/patches the same body

src-tauri/tauri.conf.json

@@ -1,7 +1,7 @@
 {
   "$schema": "https://schema.tauri.app/config/2",
   "productName": "DeepSeek Harness",
-  "version": "0.1.1",
+  "version": "0.1.2",
   "identifier": "io.github.tommyfang.DshDesktop",
   "build": {
     "frontendDist": "../ui"
@@ -41,7 +41,6 @@
       "icons/icon.ico"
     ],
     "resources": [
-      "../plugins/dsh-desktop-vision/",
       "../plugins/dsh-desktop-voice/",
       "../vendor/modlens/",
       "../vendor/dshmarket/",