add 23 requested stacks from container-requests list

Tdarr, Grocy, Dashy, Traefik, Fider, Twenty CRM, Outline, Chatwoot,
ComfyUI, Picard, VoidAuth, Tinyauth, Tugtainer, Sencho, Authelia,
Mail Archiver, ITFlow, Notifuse, Maybe Finance, DumbBudget, Silverpeas,
Portus, Obsidian — all as _dev stacks following repo conventions.

Harbor and Exportify moved to 'Apps That Will Not be in the Repo'
(installer-generated compose / no published image).

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

twenty_dev/README.md

@@ -0,0 +1,60 @@
+# Twenty CRM
+
+## Overview
+
+Modern open-source CRM system for managing customers and pipelines.
+
+## Project Details
+
+-   **Project Repository:** [GitHub](https://github.com/twentyhq/twenty)
+-   **Container Image:** [twentycrm/twenty](https://hub.docker.com/r/twentycrm/twenty)
+-   **Documentation:** [twenty.com](https://twenty.com/developers/section/self-hosting)
+-   **Reverse Proxy Port:** `3000`
+
+## Getting Started
+
+1. Start the container: `docker compose up -d`
+2. Open http://localhost:3000 in your browser
+3. Follow the initial setup wizard to configure the application
+
+## Environment Variable Notes
+
+    TWENTY_APP_SECRET – generate with `openssl rand -base64 32`
+    TWENTY_SERVER_URL – public URL of the instance
+
+## Volume Notes
+
+    /app/packages/twenty-server/.local-storage – uploaded files (shared by server and worker)
+    /var/lib/postgresql/data – PostgreSQL data
+
+## Network Notes
+
+Requires proxy network
+
+## Docker Run
+
+```bash
+docker run -d \
+  --name twenty \
+  -p 3000:3000 \
+  -e SERVER_URL=http://localhost:3000 \
+  -e APP_SECRET=changeme \
+  -e PG_DATABASE_URL=postgres://twenty:pass@dbhost:5432/default \
+  -e REDIS_URL=redis://redishost:6379 \
+  twentycrm/twenty:latest
+```
+
+## Additional Notes / Gotchas
+
+The worker container is required for background jobs (sync, imports). Both containers must share the same APP_SECRET and storage volume.
+
+## Dockhand Stack, Deploy from Git
+
+Cookbooks Repository
+stackname: twenty_dev
+Compose file path: twenty_dev/compose.yaml
+Additional env file (optional): twenty_dev/sample.env
+
+Then "Load" twenty_dev/sample.env into the Environmental variables in dockhand
+
+Create the Stack