move pi-mono into companion-cloud as apps/companion-os

- Copy all pi-mono source into apps/companion-os/
- Update Dockerfile to COPY pre-built binary instead of downloading from GitHub Releases
- Update deploy-staging.yml to build pi from source (bun compile) before Docker build
- Add apps/companion-os/** to path triggers
- No more cross-repo dispatch needed

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

packages/pi-memory-md/skills/memory-sync/SKILL.md

@@ -0,0 +1,74 @@
+---
+name: memory-sync
+description: Git synchronization operations for pi-memory-md repository
+---
+
+# Memory Sync
+
+Git synchronization for pi-memory-md repository.
+
+## Configuration
+
+Configure `pi-memory-md.repoUrl` in settings file (global: `~/.pi/agent/settings.json`, project: `.pi/settings.json`)
+
+## Sync Operations
+
+### Pull
+
+Fetch latest changes from GitHub:
+
+```
+memory_sync(action="pull")
+```
+
+Use before starting work or switching machines.
+
+### Push
+
+Upload local changes to GitHub:
+
+```
+memory_sync(action="push")
+```
+
+Auto-commits changes before pushing.
+
+**Before pushing, ALWAYS run memory_check first:**
+
+```
+memory_check()
+```
+
+This verifies that the folder structure is correct (e.g., files are in `core/project/` not in a root `project/` folder).
+
+### Status
+
+Check uncommitted changes:
+
+```
+memory_sync(action="status")
+```
+
+Shows modified/added/deleted files.
+
+## Typical Workflow
+
+| Action         | Command                        |
+| -------------- | ------------------------------ |
+| Get updates    | `memory_sync(action="pull")`   |
+| Check changes  | `memory_sync(action="status")` |
+| Upload changes | `memory_sync(action="push")`   |
+
+## Troubleshooting
+
+| Error             | Solution                                |
+| ----------------- | --------------------------------------- |
+| Non-fast-forward  | Pull first, then push                   |
+| Conflicts         | Manual resolution via bash git commands |
+| Not a git repo    | Run `memory_init(force=true)`           |
+| Permission denied | Check SSH keys or repo URL              |
+
+## Related Skills
+
+- `memory-management` - Read and write files
+- `memory-init` - Setup repository