fix: add per-environment reserved concurrency via CLI flags (#217)

* fix: add per-environment reserved concurrency via CLI flags

Move awsReservedConcurrency to deploy script CLI flags for per-environment
differentiation (dev=10, stage=15, prod=25).

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* fix: update reserved concurrency values based on actual CloudWatch metrics

---------

Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: alinarublea

package.json

@@ -19,9 +19,9 @@
     "semantic-release": "semantic-release",
     "semantic-release-dry": "semantic-release --dry-run --no-ci --branches $CI_BRANCH",
     "build": "hedy -v --test-bundle",
-    "deploy": "hedy -v --deploy --aws-deploy-bucket=spacecat-prod-deploy --pkgVersion=latest",
-    "deploy-stage": "hedy -v --deploy --aws-deploy-bucket=spacecat-stage-deploy --pkgVersion=latest",
-    "deploy-dev": "hedy -v --deploy --pkgVersion=ci$CI_BUILD_NUM -l latest --aws-deploy-bucket=spacecat-dev-deploy --cleanup-ci=24h",
+    "deploy": "hedy -v --deploy --aws-deploy-bucket=spacecat-prod-deploy --pkgVersion=latest --aws-reserved-concurrency=10",
+    "deploy-stage": "hedy -v --deploy --aws-deploy-bucket=spacecat-stage-deploy --pkgVersion=latest --aws-reserved-concurrency=10",
+    "deploy-dev": "hedy -v --deploy --pkgVersion=ci$CI_BUILD_NUM -l latest --aws-deploy-bucket=spacecat-dev-deploy --cleanup-ci=24h --aws-reserved-concurrency=10",
     "deploy-secrets": "hedy --aws-update-secrets --params-file=secrets/secrets.env",
     "prepare": "husky",
     "local-build": "sam build",