Enable SAGAMetal by default and validate Studio Web export

.gitattributes

@@ -2,6 +2,7 @@
 *.vert text eol=lf
 *.glsl text eol=lf
 *.sh text eol=lf
+/Tools/Lore/*.patch text eol=lf
 
 /Sources/AdaEngine/AdaEngine.docc/*.png -diff -merge
 /Sources/AdaEngine/AdaEngine.docc/*.jpg -diff -merge

.github/workflows/shader-graph-apple.yml

@@ -4,17 +4,25 @@ on:
   pull_request:
     branches: [main, develop]
     paths:
+      - 'Package.swift'
+      - 'Package.resolved'
       - 'Sources/**'
       - 'Editor/**'
       - 'Plugins/AdaShaderGraphBaker/**'
+      - 'Plugins/AdaWebExportPlugin/**'
       - 'Tests/**'
       - 'script/shader_graph*'
+      - 'script/web_golden_saga.mjs'
       - '.github/workflows/shader-graph-apple.yml'
   workflow_dispatch:
 
 permissions:
   contents: read
 
+concurrency:
+  group: shader-graph-apple-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
+
 jobs:
   apple:
     name: ${{ matrix.check }} with Xcode 26.6
@@ -23,25 +31,43 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        check: [cpu-baker, metal-native, ipad-simulator]
+        check: [cpu-baker, saga-default, metal-native, ipad-simulator, studio-web]
     env:
       DEVELOPER_DIR: /Applications/Xcode_26.6.app
-      ADAENGINE_PACKAGE_PATH: ${{ github.workspace }}
-      ADAENGINE_GRAVITY_PACKAGE_PATH: ${{ github.workspace }}/Sources/gravity-lang
+      ADAENGINE_PACKAGE_PATH: ${{ github.workspace }}/AdaEngine
+      ADAENGINE_GRAVITY_PACKAGE_PATH: ${{ github.workspace }}/AdaEngine/Sources/gravity-lang
       ADA_MCP_LOCAL_PATH: ${{ github.workspace }}/.build-tools/apple-mcp
       ADAENGINE_DISABLE_SWAN: '1'
       ADAENGINE_SKIP_SWIFTLINT: '1'
     steps:
+      # AdaMCP's local dependency uses the checkout directory as its SwiftPM identity.
       - uses: actions/checkout@v4
+        with:
+          path: AdaEngine
       - name: Check out the pinned local MCP dependency
         uses: actions/checkout@v4
         with:
           repository: AdaEngine/AdaMCP
           ref: ed7bb9076f9f8c91e2584ca9b7201df0e03defb1
           path: .build-tools/apple-mcp
           persist-credentials: false
+      - name: Check out the pinned mobile runtime
+        if: matrix.check == 'ipad-simulator'
+        run: |
+          git init Sloppy
+          git -C Sloppy fetch --no-tags --no-recurse-submodules --depth=1 \
+            https://github.com/TeamSloppy/Sloppy.git 0d8fd03d0269a480b6af3fb4f40333c319e2c398
+          git -C Sloppy checkout --detach FETCH_HEAD
       - name: Build and run the production paths
+        working-directory: AdaEngine
         run: bash script/shader_graph_apple_validation.sh '${{ matrix.check }}' "$RUNNER_TEMP/shader-graph-evidence"
+      - name: Upload standalone Studio compiler log
+        if: always() && matrix.check == 'studio-web'
+        uses: actions/upload-artifact@v4
+        with:
+          name: studio-web-compiler-log
+          path: AdaEngine/.build-tools/ada-tool/*/studio-debug-build.log
+          if-no-files-found: ignore
       - name: Upload logs and actual frames
         if: always()
         uses: actions/upload-artifact@v4

.github/workflows/studio-windows-release.yml

@@ -42,6 +42,11 @@ jobs:
         with:
           # AdaMCP references the local package identity AdaEngine.
           path: AdaEngine
+      - uses: actions/checkout@v4
+        with:
+          repository: SpectralDragon/SAGA
+          ref: ${{ vars.ADAENGINE_SAGA_REF }}
+          path: SAGA
       - uses: actions/setup-python@v5
         with:
           python-version: '3.12'
@@ -53,11 +58,6 @@ jobs:
         uses: ilammy/msvc-dev-cmd@v1
         with:
           arch: x64
-      - name: Cache verified Tint
-        uses: actions/cache@v4
-        with:
-          path: AdaEngine/.build-tools/tint
-          key: tint-windows-x64-${{ hashFiles('AdaEngine/Tools/Tint/toolchain.json', 'AdaEngine/script/ensure_tint.py') }}
       - name: Test portable dependency packaging
         run: |
           python script/test_build_studio_windows.py
@@ -69,7 +69,6 @@ jobs:
           $studioBin = (& ./script/build_studio_windows.ps1 -Configuration release -Jobs 2 | Select-Object -Last 1).Trim()
           "bin=$studioBin" >> $env:GITHUB_OUTPUT
           "gravity=$env:ADAENGINE_GRAVITY_PACKAGE_PATH" >> $env:GITHUB_OUTPUT
-          "tint=$env:TINT_EXECUTABLE" >> $env:GITHUB_OUTPUT
       - name: Test installed SDK discovery
         run: |
           # Compile the actual production locators without testable app imports.
@@ -81,11 +80,10 @@ jobs:
         env:
           STUDIO_BIN: ${{ steps.build.outputs.bin }}
           STUDIO_GRAVITY: ${{ steps.build.outputs.gravity }}
-          STUDIO_TINT: ${{ steps.build.outputs.tint }}
           RELEASE_TAG: ${{ github.event.release.tag_name }}
         run: |
           $studioVersion = if ($env:RELEASE_TAG) { $env:RELEASE_TAG } else { "ci-$($env:GITHUB_SHA.Substring(0, 12))" }
-          python script/package_studio_windows.py --bin "$env:STUDIO_BIN" --compiler-root "$env:STUDIO_GRAVITY" --tint "$env:STUDIO_TINT" --version "$studioVersion"
+          python script/package_studio_windows.py --bin "$env:STUDIO_BIN" --compiler-root "$env:STUDIO_GRAVITY" --version "$studioVersion"
           if ($LASTEXITCODE -ne 0) { throw 'Studio packaging failed.' }
       - name: Upload ZIP and SHA-256
         uses: actions/upload-artifact@v4