ci: clone the interscript-ts sibling before install

interscript-ts is a file: dependency on the sibling checkout; CI needs
it cloned (and built) before npm ci. Pinned to feat/imf-runtime-ts
until that line merges to main.

Author: ronaldtse

.github/workflows/build.yml

@@ -16,6 +16,10 @@ jobs:
         with:
           node-version: "22"
           cache: npm
+      - name: Clone interscript-ts (file: dependency)
+        run: |
+          git clone --depth=1 --branch feat/imf-runtime-ts https://github.com/interscript/interscript-ts.git ../interscript-ts
+          cd ../interscript-ts && npm ci && npm run build
       - name: Install dependencies
         run: npm ci
       - name: Type check

.github/workflows/deploy.yml

@@ -29,6 +29,10 @@ jobs:
         with:
           node-version: "22"
           cache: npm
+      - name: Clone interscript-ts (file: dependency)
+        run: |
+          git clone --depth=1 --branch feat/imf-runtime-ts https://github.com/interscript/interscript-ts.git ../interscript-ts
+          cd ../interscript-ts && npm ci && npm run build
       - name: Install dependencies
         run: npm ci
       - name: Build site