chore(memory): flush runtime memories and promote managed skills

Memory-file flush for the dotfiles-deploy session with the blankpad admin
credential scrubbed to a placeholder; sessions transcripts untracked
(gitignored) since harness transcripts can carry raw secrets.
Managed skills: command-center-dotfiles-import, ssh-fish-host-remote-exec,
stash-supersession-audit-before-drop.

agent/memories/--home-dank-.omp--/skills/omp-deploy-workflow/examples/pr-creation.md

@@ -0,0 +1,5 @@
+1. Branch: `pr/fix-models`
+2. Stash if dirty: `git stash`
+3. Checkout main: `git checkout main`
+4. Push & open PR to dank/command-center
+5. Rebase/merge after CI.