feat(P61): L2 lifecycle pipeline — extend matrix + workflows + tests

Extend the modules-lifecycle pipeline with L2 composition modules
(static-assets, microservice) per REQ-128:

- pipelines/modules-lifecycle.yml: added l2-lifecycle-apply/modify/destroy
  stages + l2_modules matrix entry
- .gitea/workflows/modules-lifecycle.yml + .github/workflows/modules-lifecycle.yml:
  added l2-lifecycle job (byte-identical), matrix over [static-assets,
  microservice], needs ci-vpc-apply, has apply/modify/destroy steps.
  ci-vpc-destroy now needs both [lifecycle, l2-lifecycle].
- schemas/modules-lifecycle-pipeline.schema.json: added l2_modules to matrix
- scripts/run_l2_lifecycle_test.sh + run_l2_lifecycle_destroy.sh: L2 wrappers
  that set ACDL_REMOTE_STATE_KEY=spike/ci-vpc/terraform.tfstate so the
  microservice composition's terraform_remote_state reads from the CI VPC
- adapters/terraform/adapter.py: parameterized remote_state key via
  ACDL_REMOTE_STATE_KEY env var (default: platform/terraform.tfstate)
- modules/l2/static-assets/examples/complex.yml: fixed bucket_name to match
  simple (my-static-site) so terraform modifies in-place (adds CDN + WAF)
- modules/l2/microservice/examples/complex.yml: fixed bucket_name to match
  simple (my-microservice-demo), added desired_count:2 (modify variant)
- tests/test_pipeline_contract.py: 7 new L2 tests (l2 job exists, matrix
  lists both modules, apply/modify/destroy steps, needs ci-vpc-apply,
  ci-vpc-destroy needs both, contract matrix lists l2_modules)
- pipelines/README.md: updated stages for L2

Regression: 485 passed, 5 deselected. Gitea + GitHub workflows byte-identical.

---ci---
project: acdl
phase: P61
milestone: v1.11
status: execute
---/ci---

adapters/terraform/adapter.py

@@ -138,12 +138,13 @@ def adapt(stack_instance, out_dir):
     data_source_names = stack_instance.get("data_sources", [])
     data_blocks = []
     if data_source_names:
+        remote_state_key = os.environ.get("ACDL_REMOTE_STATE_KEY", "platform/terraform.tfstate")
         data_blocks.append(
             'data "terraform_remote_state" "platform" {\n'
             '  backend = "s3"\n'
             '  config = {\n'
             '    bucket = "acdl-tfstate-581513795199-us-east-1"\n'
-            '    key    = "platform/terraform.tfstate"\n'
+            f'    key    = "{remote_state_key}"\n'
             '    region = "us-east-1"\n'
             '  }\n'
             '}\n'