extract dbaas, authentik, crowdsec from platform into independent stacks [ci skip]

Phase 1 of platform stack split for parallel CI applies.
All 3 modules were fully independent (no cross-module refs).
State migrated via terraform state mv. All 3 stacks applied
with zero changes (dbaas had pre-existing ResourceQuota drift).
Woodpecker pipeline updated to run extracted stacks in parallel.

stacks/dbaas/modules/dbaas/versions.tf

@@ -0,0 +1,9 @@
+# terraform {
+#   required_providers {
+#     kubectl = {
+#       source  = "gavinbunney/kubectl"
+#       version = ">= 1.10.0"
+#     }
+#   }
+#   required_version = ">= 0.13"
+# }