Fix SDK (#487)

* **New Features**
  * Added a full SDK integration test suite with a minimal sample app and automated multi-platform build/run flows.
  * Added a new CLI build tool to orchestrate SDK download, build, packaging, and device install/run.

* **Documentation**
  * Added typography design token suggestion to ideas.

* **Chores**
  * Updated CI to run SDK integration prep and test steps.
  * Adjusted build artifact paths, license mappings, and repository ignore rules (including .tactility).

.github/actions/build-sdk/action.yml

@@ -30,6 +30,20 @@ runs:
         # NOTE: Update with ESP-IDF!
         ESP_IDF_VERSION: '5.5'
       run: python Buildscripts/release-sdk.py release/TactilitySDK
+    - name: 'Test Integration Prep'
+      shell: bash
+      # The manifest.properties of our integration test uses version 0.0.0 to indicate that it is not using a normal SDK
+      # This way, it only works with our custom build. That means we have to create a copy of the SDK with the correct folder structure:
+      run: |
+        TACTILITY_SDK_NAME="0.0.0-${{ inputs.arch }}"
+        mkdir -p test_sdk/$TACTILITY_SDK_NAME
+        cp -r release/TactilitySDK test_sdk/$TACTILITY_SDK_NAME
+    - name: 'Test Integration'
+      uses: espressif/esp-idf-ci-action@v1
+      with:
+        esp_idf_version: v5.5
+        target: ${{ inputs.arch }}
+        command: export TACTILITY_SDK_PATH=../../test_sdk && cd Tests/SdkIntegration && python tactility.py build ${{ inputs.arch }} --local-sdk
     - name: 'Upload Artifact'
       uses: actions/upload-artifact@v4
       with: