Fix git sync: commit memory files before pull, push back to remote

- .gitignore: exclude runtime junk (.claude/, .cache/, .npm/) but track
  life/ and memory/ so agent knowledge persists across pod restarts
- CEO heartbeat: git add + commit local changes before pull --rebase,
  then push to persist memory files in the repo
- Fixes agents wasting turns debugging dirty working tree on every heartbeat

Co-Authored-By: Paperclip <noreply@paperclip.ing>

.gitignore

@@ -1,3 +1,26 @@
+# Agent runtime artifacts (transient, not worth tracking)
+.claude/
+.claude.json
+.cache/
+.config/
+.local/
+.npm/
+.profile
+.zshrc
+.gitconfig
+.kube/
+
+# Editor swap files
+*.swp
+*.swo
+
+# Secrets (never commit)
 secrets/
 *.pem
+
+# Sync state (local only)
 .last-synced-sha
+
+# Node artifacts
+node_modules/
+bun.lock