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

Cargo.lock

@@ -949,7 +949,7 @@ dependencies = [
 
 [[package]]
 name = "dsh-core"
-version = "0.1.1"
+version = "0.1.2"
 dependencies = [
  "base64 0.22.1",
  "dirs",
@@ -966,7 +966,7 @@ dependencies = [
 
 [[package]]
 name = "dsh-desktop"
-version = "0.1.1"
+version = "0.1.2"
 dependencies = [
  "arboard",
  "dsh-core",