OM9 add-on: Vietnamese interface and the full Curve menu (58 commands) as in Matrix 9

.github/workflows/release-windows.yml

@@ -59,6 +59,18 @@ jobs:
           Start-Transcript -Path build/ci/standalone/build.log
           try { ./tools/ci/build-standalone-windows.ps1 }
           finally { Stop-Transcript }
+      - name: Build add-on packages (Tools > Add-ons > Install from Disk)
+        shell: pwsh
+        env:
+          CARGO_TARGET_DIR: ${{ runner.temp }}/om9-target
+        run: ./tools/ci/build-addons-windows.ps1
+      - name: Keep add-on packages
+        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4
+        with:
+          name: om9-addons
+          path: build/ci/standalone/addons/*
+          if-no-files-found: error
+          retention-days: 30
       - name: Attest ZIP provenance
         if: github.event_name != 'pull_request'
         uses: actions/attest@1e69f48acb82d1966a394da916b4c1698aa569d6 # v4

Cargo.toml

@@ -1,5 +1,5 @@
 [workspace]
-members = ["crates/om9-core", "crates/om9-archive", "crates/om9-app", "crates/om9-scene", "crates/om9-native-owner", "crates/om9-exchange", "crates/om9-kernel", "crates/om9-render", "crates/om9-3dm", "crates/om9-sdk", "crates/om9-plugin-host", "sdk/examples/hello-plugin"]
+members = ["crates/om9-core", "crates/om9-archive", "crates/om9-app", "crates/om9-scene", "crates/om9-native-owner", "crates/om9-exchange", "crates/om9-kernel", "crates/om9-render", "crates/om9-3dm", "crates/om9-sdk", "crates/om9-plugin-host", "sdk/examples/hello-plugin", "crates/om9-addons", "crates/om9-addon-abi", "addons/gem_on_curve", "addons/geom", "addons/curves", "addons/transform", "addons/gem_cutter", "addons/gems", "addons/settings", "addons/cutters", "addons/transform_tools", "addons/solid", "addons/curve_tools", "addons/gem_tools", "addons/setting_tools", "addons/builders", "addons/tools", "addons/surfaces", "addons/subd", "addons/top11", "addons/matrix"]
 resolver = "3"
 
 [workspace.package]

addons/builders/Cargo.toml

@@ -0,0 +1,18 @@
+[package]
+name = "om9-addon-builders"
+version = "0.1.0"
+edition.workspace = true
+license.workspace = true
+rust-version.workspace = true
+description = "OM9 Matrix-style Builder menu: eternity, signet, raised and SubD rings, text on curve, rope, jump ring, knots, patterns, mill work"
+publish = false
+
+[lib]
+name = "om9_builders"
+
+[dependencies]
+om9-addon-abi = { path = "../../crates/om9-addon-abi", features = ["session"] }
+om9-addon-geom = { path = "../geom" }
+om9-addon-gem-cutter = { path = "../gem_cutter", default-features = false }
+serde = { workspace = true }
+serde_json = { workspace = true }