feat(dev): add Docker development CLI (#6495)

apps/docs/docs/advanced/command-line/development/index.mdx

@@ -0,0 +1,41 @@
+# Developer Docker CLI
+
+The host-side developer CLI builds and runs local Homarr images and pull-request previews. Run it directly from a checkout with `pnpm dev:cli -- ...`; no shell-specific setup script is required. It is separate from the recovery CLI included in production images.
+
+To install an optional `homarr` binary, run `pnpm dev:cli:install` and make your Go bin directory available on `PATH`. GitHub CLI authentication is only needed for pull-request features.
+
+## Browse development images
+
+```bash
+pnpm dev:cli --
+```
+
+The main screen combines local `homarr:*` images with open pull requests and their GHCR preview status. Select an image to start or stop it, use `R` to build a remote pull request locally in the background or rebuild a local image, or use `p` to force a remote preview pull. Press `d` to switch to the instance dashboard and `d` again to return without losing the browser state. The explicit `dev` and `dash` subcommands start on either screen.
+
+A locally built PR image is folded into its remote PR row only when its recorded revision exactly matches the current GitHub head SHA. The row is marked `◆ local`, and starting it prefers that local image without a registry pull. Outdated local builds remain separate rows. Navigation and dashboard switching remain available during background builds.
+
+## Build images
+
+```bash
+pnpm dev:cli -- build <name>
+pnpm dev:cli -- build --pr <number> [name]
+```
+
+The first command builds the current checkout as `homarr:<name>`. The pull-request form uses a depth-one clone in a temporary directory and defaults to `homarr:pr-<number>` when `name` is omitted.
+
+## Rebuild images
+
+```bash
+pnpm dev:cli -- rebuild <name>
+```
+
+Images built by this CLI record their source checkout, revision, and optional pull-request number. Rebuild uses that provenance to select the original checkout or create a fresh temporary pull-request checkout.
+
+## Run images
+
+```bash
+homarr run <name>
+homarr run --pr <number>
+```
+
+Add `--detach` to run in the background, `--demo` to enable demo data, or repeat `--env KEY=VALUE` to provide additional environment variables.

apps/docs/docs/advanced/development/getting-started.mdx

@@ -17,8 +17,9 @@ This guide will help you set up your development environment to start contributi
 - **Node.js (lts)**: You can download it from the [official website](https://nodejs.org/).
 - **pnpm (latest)**: You can install it by running `npm install -g pnpm`.
 - **Git**: You can download it from the [official website](https://git-scm.com/).
-- **Docker or Docker Desktop**: You can download it from the [official website](https://www.docker.com/).
-- **A GitHub account**: You can create one on the [official website](https://github.com/).
+- **Docker or Docker Desktop**: Required for the Redis service and the developer Docker CLI.
+- **Go 1.25+**: Required only for the developer Docker CLI. You can download it from the [official website](https://go.dev/).
+- **GitHub CLI**: Required only for pull-request image features. Install it from the [official website](https://cli.github.com/), then authenticate with `gh auth login`.
 
 ### Setting up the project
 
@@ -34,11 +35,11 @@ This guide will help you set up your development environment to start contributi
 
 4. Install the dependencies with `pnpm install`.
 
-5. Start redis by running `pnpm run docker:dev`. This will run a docker-compose file with a redis service.
+5. Create `.env` from `.env.example`. In a POSIX shell, run `cp .env.example .env`; in PowerShell, run `Copy-Item .env.example .env`. Set `DB_URL` to an absolute path for your SQLite file.
 
-6. Copy the `.env.example` file to `.env` and replace `DB_URL` with the full path you want to use for the sqlite database file. For example `DB_URL='C:\\Dev\\homarr\\packages\\db\\db.sqlite'`
+6. Start Redis in the background with `pnpm docker:dev:up` if your development workflow needs it.
 
-7. Run the migrations to create the sqlite db file with `pnpm run db:migration:sqlite:run`.
+7. Create or update the database with `pnpm db:migration:sqlite:run`. This also seeds the default data. To run the seed explicitly later, use `pnpm db:seed`.
 
 8. Start the development server with `pnpm dev` and wait for a message that says `✓ Ready in 10.7s`
 
@@ -49,8 +50,15 @@ This guide will help you set up your development environment to start contributi
 #### During development
 
 - `pnpm dev`: Start the development server.
+- `pnpm dev:cli -- dev`: Browse and run local images and remote pull-request images.
+- `pnpm dev:cli -- build <name>`: Build the current checkout as `homarr:<name>`.
+- `pnpm dev:cli -- build --pr <number>`: Build a pull request locally from a temporary checkout.
+- `pnpm dev:cli -- rebuild <name>`: Rebuild a local image from its recorded checkout or pull request.
+- `pnpm dev:cli:install`: Optionally install the developer CLI as a `homarr` binary.
 - `pnpm cli`: Run cli commands.
 - `pnpm db:migration:sqlite:run`: Run the migrations to create or update the sqlite db file.
+- `pnpm db:seed`: Explicitly seed the default database data.
+- `pnpm docker:dev:up`: Start the Redis development service in the background.
 - `pnpm db:migration:sqlite:generate`: Generate a new migration file for the sqlite db. Also works with `mysql`.
 - `pnpm db:studio`: Open a visual studio for the database.
 - `pnpm package:new`: Create a new package in the monorepo.
@@ -63,6 +71,7 @@ This guide will help you set up your development environment to start contributi
 - `pnpm typecheck`: Run the typescript type checker.
 
 #### Building the project
+
 - `pnpm build`: Build the project for production.
-- `docker build -t homarr .`: Build a docker image for the project.
-- `docker run -p 7575:7575 -e SECRET_ENCRYPTION_KEY='your_64_character_hex_string' homarr:latest`: Run the created docker image.
+- `pnpm dev:cli -- build <name>`: Build a `homarr:<name>` image and record its checkout for later rebuilds.
+- `docker run -p 7575:7575 -e SECRET_ENCRYPTION_KEY='your_64_character_hex_string' homarr:<name>`: Run the created docker image.