Add Microsoft Store MSIX package build (#14142)

* docs: add MSIX Store build design spec

* docs: update MSIX spec (PFN deep link, .drc, Associate tab) and add implementation plan

* ci: add MSIX logo asset generator and generated assets

* ci: fix MSIX asset rendering edge bleed (PixelOffsetMode) and make output order deterministic

* ci: add MSIX AppxManifest template

* ci: add MSIX packaging script

* ci: make build_msix.ps1 stage-only exit dot-source safe

* ci: build MSIX Store package in Windows job

* ci: run MSIX pack after existing Windows uploads and keep it out of release downloads

* feat: add MSIX packaged-context detection helpers

* fix: resolve MSIX package APIs dynamically to keep Win7 loadable

* feat: suppress self-update in MSIX Store build

* feat: suppress runtime file associations in MSIX Store build

* feat: keep version check in MSIX build, point update dialog at the Store

The update check is notification-only (OrcaSlicer never auto-downloads),
so the Store build keeps checking for new versions instead of skipping
the check. What changes when packaged is the new-version dialog: the
Download button is hidden, the info text asks the user to update from
the Microsoft Store, and the hyperlink / wxID_YES action opens the Store
product page instead of the GitHub release page.

* docs: align spec verification plan with Store-redirect updater behavior

* feat: default MSIX identity to the reserved Partner Center values

* feat: render MSIX logos full-bleed from the gradient-circle SVG

* feat: point update dialog Download button at the Store in MSIX builds

* feat: link Associate tab to Windows Default Apps settings in MSIX builds

* docs: align spec with review-driven logo, dialog and Associate-tab changes

* clearn up

.github/workflows/build_all.yml

@@ -14,6 +14,7 @@ on:
      - 'resources/**'
      - ".github/workflows/build_*.yml"
      - 'scripts/flatpak/**'
+     - 'scripts/msix/**'
 
   pull_request:
     branches:
@@ -30,6 +31,7 @@ on:
      - 'build_release_vs2022.bat'
      - 'build_release_macos.sh'
      - 'scripts/flatpak/**'
+     - 'scripts/msix/**'
 
 
   schedule:

.github/workflows/build_orca.yml

@@ -371,6 +371,25 @@ jobs:
           asset_content_type: application/x-msdownload
           max_releases: 1
 
+      - name: Build MSIX Store package Win
+        if: runner.os == 'Windows' && !vars.SELF_HOSTED
+        working-directory: ${{ github.workspace }}
+        shell: pwsh
+        run: |
+          ./scripts/msix/build_msix.ps1 `
+            -InstallDir "${{ github.workspace }}/build/OrcaSlicer" `
+            -OutputPath "${{ github.workspace }}/build/OrcaSlicer_Windows_MSIX_${{ env.ver }}.msix" `
+            -IdentityName "${{ vars.ORCA_MSIX_IDENTITY_NAME || 'OrcaSlicer.OrcaSlicer' }}" `
+            -Publisher "${{ vars.ORCA_MSIX_PUBLISHER || 'CN=38F7EA55-C73B-4072-B3B2-C8E0EA15BB82' }}" `
+            -PublisherDisplayName "${{ vars.ORCA_MSIX_PUBLISHER_DISPLAY_NAME || 'OrcaSlicer' }}"
+
+      - name: Upload artifacts Win MSIX
+        if: runner.os == 'Windows' && !vars.SELF_HOSTED
+        uses: actions/upload-artifact@v7
+        with:
+          name: OrcaSlicer_Windows_MSIX_${{ env.ver }}
+          path: ${{ github.workspace }}/build/OrcaSlicer_Windows_MSIX_${{ env.ver }}.msix
+
 # Ubuntu
       - name: Apt-Install Dependencies
         if: runner.os == 'Linux' && !vars.SELF_HOSTED

.github/workflows/publish_release.yml

@@ -73,8 +73,9 @@ jobs:
 
       - name: Download release artifacts from build run
         run: |
+          # Windows_V* (not Windows_*) keeps the MSIX Store artifact out: it goes to Partner Center, not GitHub releases.
           gh run download "$RUN_ID" --repo "$GITHUB_REPOSITORY" --dir artifacts \
-            -p 'OrcaSlicer_Windows_*' \
+            -p 'OrcaSlicer_Windows_V*' \
             -p 'OrcaSlicer_Mac_universal_*' \
             -p 'OrcaSlicer_Linux_ubuntu_*' \
             -p 'OrcaSlicer-Linux-flatpak_*' \