Fix YAML syntax in buildspec.yml

- Replace backticks with quoted $(date) syntax to prevent YAML parsing errors
- CodeBuild was failing with 'Expected Commands[1] to be of string type' error

Author: claudfuen

.github/workflows/preview.yml

@@ -631,7 +631,7 @@ const migrationTaskDef = new aws.ecs.TaskDefinition("pathfinder-migration-task",
 // Trigger CodeBuild to build images and run migrations  
 const buildImagesAndMigrate = new command.local.Command("build-images-and-migrate", {
   create: pulumi.interpolate`
-    set -euo pipefail  # Exit on any error, undefined vars, or pipe failures
+    set -eu  # Exit on any error, undefined vars (pipefail not supported in sh)
     
     echo "🚀 Starting CodeBuild to build images and run migrations..."
     

apps/infra/index.ts

@@ -14,7 +14,7 @@ phases:
       - echo DATABASE_URL is configured for build-time access
   build:
     commands:
-      - echo Build started on `date`
+      - echo "Build started on $(date)"
       - echo "=== PHASE 1: Building and pushing migration image ==="
       - cd apps/web  # Navigate to the web app directory from repo root
       - docker build -f Dockerfile.migration -t $IMAGE_REPO_NAME:migration-$IMAGE_TAG .
@@ -45,7 +45,7 @@ phases:
       - docker tag $IMAGE_REPO_NAME:$IMAGE_TAG $REPOSITORY_URI:latest
   post_build:
     commands:
-      - echo Build completed on `date`
+      - echo "Build completed on $(date)"
       - echo Pushing the Docker images...
       - docker push $REPOSITORY_URI:migration-$IMAGE_TAG
       - docker push $REPOSITORY_URI:migration-latest