fix(ci): fix lifecycle wiring, remove duplicate GHCR cleanup (#789)

- bonedigger.yml: was calling projectbluefin/common/.github/workflows/
  lifecycle.yml@025ec29 (stale path, predates lifecycle migration to
  projectbluefin/actions). Updated to call factory-standard
  projectbluefin/bonedigger@30a240e
- Delete lifecycle-caller.yml: duplicate lifecycle handler firing on
  identical events as bonedigger.yml, also pointing at stale common path
- Delete clean.yml: pinned to feature branch SHA
  (feat/ghcr-cleanup-orphaned-images, fb75840b) not a release;
  duplicates ghcr-cleanup.yml which is properly release-pinned and
  runs the following day

Assisted-by: Claude Sonnet 4.5 via pi

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Author: castrojo

.github/workflows/bonedigger.yml

@@ -17,7 +17,7 @@ permissions:
 
 jobs:
   lifecycle:
-    uses: projectbluefin/common/.github/workflows/lifecycle.yml@025ec29f68aa919d1d90a3d4bb04b3e5e4777158 # main
+    uses: projectbluefin/bonedigger/.github/workflows/lifecycle.yml@30a240ea9163790fe9c1f24b2c6ce65af4a71798 # main
     with:
       brand_name: "Dakota"
     secrets: inherit