Add TODO.md with planned features and refactoring

- Update stack command for continuous deployment workflow
- Separate deployer from CLI
- Separate stacks from orchestrator repo

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

TODO.md

@@ -0,0 +1,16 @@
+# TODO
+
+## Features Needed
+
+### Update Stack Command
+We need an "update stack" command in stack orchestrator and cleaner documentation regarding how to do continuous deployment with and without payments.
+
+**Context**: Currently, `deploy init` generates a spec file and `deploy create` creates a deployment directory. The `deployment update` command (added by Thomas Lackey) only syncs env vars and restarts - it doesn't regenerate configurations. There's a gap in the workflow for updating stack configurations after initial deployment.
+
+## Architecture Refactoring
+
+### Separate Deployer from Stack Orchestrator CLI
+The deployer logic should be decoupled from the CLI tool to allow independent development and reuse.
+
+### Separate Stacks from Stack Orchestrator Repo
+Stacks should live in their own repositories, not bundled with the orchestrator tool. This allows stacks to evolve independently and be maintained by different teams.