ci: use install.js --force to extract prebuilds in Node.js test jobs

install.js exits early when .git exists (dev mode detection). Add a
--force flag to bypass this check so CI can run the full install flow
(prebuild extraction + macOS framework unpacking) against the prebuilds
downloaded from the build artifact, without changing behavior for
regular npm install.

Author: MaxMansfield

.github/workflows/main.yml

@@ -278,8 +278,8 @@ jobs:
 
     - name: Extract native prebuild
       # install.js skips extraction when .git exists (dev mode detection).
-      # Run prebuild-install directly to place rtms.node in build/Release/.
-      run: npx prebuild-install -r napi
+      # --force bypasses that check so the full install flow runs in CI.
+      run: node scripts/install.js --force
 
     - name: Compile TypeScript
       run: npx tsc

scripts/install.js

@@ -109,10 +109,12 @@ function installPrebuild() {
  * Main install function
  */
 function main() {
-  // Detect development mode (git repo exists)
+  // Detect development mode (git repo exists).
+  // Pass --force to bypass this check (e.g. CI extracting a downloaded prebuild).
   const isDevelopment = existsSync(join(__dirname, '..', '.git'));
+  const isForced = process.argv.includes('--force');
 
-  if (isDevelopment) {
+  if (isDevelopment && !isForced) {
     // In dev mode, skip prebuild - developers use `task build`
     process.exit(0);
   }