fix: add --force flag to npm install in docker-compose files

Allow npm to install platform-specific devDependencies (like dmg-license
which is macOS-only) by skipping platform checks in Linux Docker containers.
This matches the behavior already used in CI workflows.

Fixes Docker container startup failure:
- docker-compose.dev.yml (full stack development)
- docker-compose.dev-server.yml (server-only with local Electron)

The --force flag allows npm to proceed with installation even when some
optional/platform-specific dependencies can't be installed on the current
platform.

docker-compose.dev-server.yml

@@ -81,7 +81,7 @@ services:
         # Run the rest as automaker user
         exec gosu automaker sh -c "
           echo 'Installing dependencies...' &&
-          npm install &&
+          npm install --force &&
           echo 'Building shared packages...' &&
           npm run build:packages &&
           echo 'Starting server in development mode...' &&

docker-compose.dev.yml

@@ -82,7 +82,7 @@ services:
         # Run the rest as automaker user
         exec gosu automaker sh -c "
           echo 'Installing dependencies...' &&
-          npm install &&
+          npm install --force &&
           echo 'Building shared packages...' &&
           npm run build:packages &&
           echo 'Starting server in development mode...' &&