Add neovim 0.12, bat, eza, zoxide, tmux, htop to base image

Replace vim-tiny with neovim from GitHub releases (pinned, multi-arch).
Add bat, eza, zoxide from GitHub releases and tmux, htop, patch from apt.
Move tmux from OMOS-only to base image. Set EDITOR=nvim.
Add neovim config mount option to docker-compose and docs.

DOCKER_HUB.md

@@ -9,7 +9,7 @@ Two image variants are published for each release:
 | Tag | Description |
 |---|---|
 | `latest` / `vX.Y.Z` | Base image — opencode, Node.js, AWS CLI, dev tools |
-| `latest-omos` / `vX.Y.Z-omos` | Base + [oh-my-opencode-slim](https://github.com/alvinunreal/oh-my-opencode-slim) multi-agent orchestration, Bun, and tmux |
+| `latest-omos` / `vX.Y.Z-omos` | Base + [oh-my-opencode-slim](https://github.com/alvinunreal/oh-my-opencode-slim) multi-agent orchestration and Bun |
 
 Both variants support `linux/amd64` and `linux/arm64`.
 
@@ -207,6 +207,17 @@ docker run -it --rm \
 
 When a config file is mounted, the `OPENCODE_PROVIDER` auto-config is skipped.
 
+## Neovim Configuration
+
+The image includes neovim 0.12 with `EDITOR=nvim` set by default. To use your own neovim config (and have plugins auto-install via lazy.nvim on first start), mount it from the host:
+
+```bash
+docker run -it --rm \
+  -v ~/.config/nvim:/home/developer/.config/nvim:ro \
+  ... \
+  joakimp/opencode-devbox:latest
+```
+
 ## Using docker-compose
 
 Create a directory with a `docker-compose.yml` and a `.env` file:
@@ -251,6 +262,8 @@ services:
       # Optional: mount opencode skills from host
       # - ~/.config/opencode/skills:/home/developer/.config/opencode/skills:ro
       # - ~/.agents/skills:/home/developer/.agents/skills:ro
+      # Optional: mount neovim config from host (plugins auto-install on first start)
+      # - ~/.config/nvim:/home/developer/.config/nvim:ro
 
 volumes:
   devbox-data:
@@ -287,7 +300,7 @@ docker compose run --rm devbox bash   # interactive shell
 - **opencode** — AI coding assistant
 - **Node.js 22** — for npx-based MCP servers
 - **AWS CLI v2** — SSO and Bedrock authentication
-- **Dev tools** — git, git-lfs, ssh, ripgrep, fd, fzf, jq, curl, wget, vim, tree
+- **Dev tools** — git, git-lfs, ssh, ripgrep, fd, fzf, bat, eza, zoxide, jq, curl, wget, neovim 0.12, tmux, htop, tree
 - **Non-root user** — runs as `developer` with UID auto-matched to workspace owner (sudo available)
 
 ### OMOS image (`latest-omos`)
@@ -296,7 +309,6 @@ Everything in the base image, plus:
 
 - **[oh-my-opencode-slim](https://github.com/alvinunreal/oh-my-opencode-slim)** — multi-agent orchestration plugin
 - **Bun** — JavaScript runtime required by oh-my-opencode-slim
-- **tmux** — terminal multiplexer (used by OMOS for agent pane integration, but also useful on its own for managing multiple terminal sessions)
 - **6 specialized agents** — Orchestrator, Explorer, Oracle, Librarian, Designer, Fixer
 
 ### Additional runtimes (build from source)