Introduce the "run" and "down" Makefile targets that provide a single
target I can use for both local & CI. Updates the build.yml workflow to
adopt that new target, which removes some of the existing spaghetti as
well.

# Description

Docker build fails when `ui/node_modules` is present locally due to a
bad file descriptor error during build context transfer. No
`.dockerignore` existed to prevent unnecessary files from being sent to
the Docker daemon.

Adds a `.dockerignore` file that excludes `ui/node_modules` (the primary
cause of the error) along with other irrelevant files such as `.git/`,
IDE configs, OS metadata, Go/UI build artifacts, docs, and test
directories.

Fixes #169

# Change Type

/kind cleanup

# Changelog

```release-note
NONE
```

# Additional Notes

The `ui/node_modules` directory can contain symlinks or special files
(like the `classPrivateFieldSet.js` reported in the issue) that cause
`lstat` errors during Docker build context transfer on some systems.

<!-- START COPILOT ORIGINAL PROMPT -->



<details>

<summary>Original prompt</summary>

> 
> ----
> 
> *This section details on the original issue you should resolve*
> 
> <issue_title>Ignore UI node modules when building server
image</issue_title>
> <issue_description>When I try to build the server docker image
locally, I'm running into the following error:
> 
> ```bash
> $ docker buildx build --push --platform linux/arm64 -f
docker/server.Dockerfile -t
localhost:5001/agentregistry-dev/agentregistry/server:v0.2.0-2-g8184a2d
--build-arg LDFLAGS="-s -w -X
'github.com/agentregistry-dev/agentregistry/internal/version.Version=v0.2.0-2-g8184a2d'
-X
'github.com/agentregistry-dev/agentregistry/internal/version.GitCommit=8184a2d'
-X
'github.com/agentregistry-dev/agentregistry/internal/version.BuildDate=2026-03-03'
-X
'github.com/agentregistry-dev/agentregistry/internal/version.DockerRegistry=localhost:5001'"
.
> [+] Building 1.3s (12/33) docker:default
> => [internal] load build definition from server.Dockerfile 0.1s
> => => transferring dockerfile: 2.78kB 0.0s
> => [internal] load metadata for docker.io/library/ubuntu:22.04 0.7s
> => [internal] load metadata for docker.io/library/node:22-alpine 0.6s
> => [internal] load metadata for docker.io/library/golang:1.25-alpine
0.7s
> => [auth] library/node:pull token for registry-1.docker.io 0.0s
> => [auth] library/ubuntu:pull token for registry-1.docker.io 0.0s
> => [auth] library/golang:pull token for registry-1.docker.io 0.0s
> => [internal] load .dockerignore 0.1s
> => => transferring context: 2B 0.0s
> => [ui-builder 1/8] FROM
docker.io/library/node:22-alpine@sha256:e4bf2a82ad0a4037d28035ae71529873c069b13eb0455466ae0bc13363826e34
0.0s
> => [builder 1/10] FROM
docker.io/library/golang:1.25-alpine@sha256:f6751d823c26342f9506c03797d2527668d095b0a15f1862cddb4d927a7a4ced
0.0s
> => ERROR [internal] load build context 0.2s
> => => transferring context: 7.89MB 0.1s
> => [runtime 1/6] FROM
docker.io/library/ubuntu:22.04@sha256:3ba65aa20f86a0fad9df2b2c259c613df006b2e6d0bfcc8a146afb8c525a9751
0.0s
> ------
>  > [internal] load build context:
> ------
> ERROR: failed to solve: error from sender: lstat
ui/node_modules/@babel/helpers/lib/helpers/classPrivateFieldSet.js: bad
message
> make[1]: *** [Makefile:241: docker-server] Error 1
> make[1]: Leaving directory '/work/agentregistry'
> make: *** [Makefile:117: run] Error 2
> ```
> 
> I'll look into adding a .dockerignore file to this repository that
ignores the node_modules.</issue_description>
> 
> <agent_instructions>Bootstrap a .dockerignore file that ignores the
node_modules directory along with any other files/directories relevant
to this repository. Avoid bloating this file with unnecessary
cruft.</agent_instructions>
> 
> ## Comments on the Issue (you are @copilot in this section)
> 
> <comments>
> </comments>
> 


</details>



<!-- START COPILOT CODING AGENT SUFFIX -->

- Fixes #248

<!-- START COPILOT CODING AGENT TIPS -->
---

💬 We'd love your input! Share your thoughts on Copilot coding agent in
our [2 minute survey](https://gh.io/copilot-coding-agent-survey).

---------

Co-authored-by: copilot-swe-agent[bot] <[email protected]>
Co-authored-by: timflannagan <[email protected]>

Introduce the "run" and "down" Makefile targets that provide a single
target I can use for both local & CI. Updates the build.yml workflow to
adopt that new target, which removes some of the existing spaghetti as
well.

…tregistry-dev#249)

# Description

Docker build fails when `ui/node_modules` is present locally due to a
bad file descriptor error during build context transfer. No
`.dockerignore` existed to prevent unnecessary files from being sent to
the Docker daemon.

Adds a `.dockerignore` file that excludes `ui/node_modules` (the primary
cause of the error) along with other irrelevant files such as `.git/`,
IDE configs, OS metadata, Go/UI build artifacts, docs, and test
directories.

Fixes agentregistry-dev#169

# Change Type

/kind cleanup

# Changelog

```release-note
NONE
```

# Additional Notes

The `ui/node_modules` directory can contain symlinks or special files
(like the `classPrivateFieldSet.js` reported in the issue) that cause
`lstat` errors during Docker build context transfer on some systems.

<!-- START COPILOT ORIGINAL PROMPT -->



<details>

<summary>Original prompt</summary>

> 
> ----
> 
> *This section details on the original issue you should resolve*
> 
> <issue_title>Ignore UI node modules when building server
image</issue_title>
> <issue_description>When I try to build the server docker image
locally, I'm running into the following error:
> 
> ```bash
> $ docker buildx build --push --platform linux/arm64 -f
docker/server.Dockerfile -t
localhost:5001/agentregistry-dev/agentregistry/server:v0.2.0-2-g8184a2d
--build-arg LDFLAGS="-s -w -X
'github.com/agentregistry-dev/agentregistry/internal/version.Version=v0.2.0-2-g8184a2d'
-X
'github.com/agentregistry-dev/agentregistry/internal/version.GitCommit=8184a2d'
-X
'github.com/agentregistry-dev/agentregistry/internal/version.BuildDate=2026-03-03'
-X
'github.com/agentregistry-dev/agentregistry/internal/version.DockerRegistry=localhost:5001'"
.
> [+] Building 1.3s (12/33) docker:default
> => [internal] load build definition from server.Dockerfile 0.1s
> => => transferring dockerfile: 2.78kB 0.0s
> => [internal] load metadata for docker.io/library/ubuntu:22.04 0.7s
> => [internal] load metadata for docker.io/library/node:22-alpine 0.6s
> => [internal] load metadata for docker.io/library/golang:1.25-alpine
0.7s
> => [auth] library/node:pull token for registry-1.docker.io 0.0s
> => [auth] library/ubuntu:pull token for registry-1.docker.io 0.0s
> => [auth] library/golang:pull token for registry-1.docker.io 0.0s
> => [internal] load .dockerignore 0.1s
> => => transferring context: 2B 0.0s
> => [ui-builder 1/8] FROM
docker.io/library/node:22-alpine@sha256:e4bf2a82ad0a4037d28035ae71529873c069b13eb0455466ae0bc13363826e34
0.0s
> => [builder 1/10] FROM
docker.io/library/golang:1.25-alpine@sha256:f6751d823c26342f9506c03797d2527668d095b0a15f1862cddb4d927a7a4ced
0.0s
> => ERROR [internal] load build context 0.2s
> => => transferring context: 7.89MB 0.1s
> => [runtime 1/6] FROM
docker.io/library/ubuntu:22.04@sha256:3ba65aa20f86a0fad9df2b2c259c613df006b2e6d0bfcc8a146afb8c525a9751
0.0s
> ------
>  > [internal] load build context:
> ------
> ERROR: failed to solve: error from sender: lstat
ui/node_modules/@babel/helpers/lib/helpers/classPrivateFieldSet.js: bad
message
> make[1]: *** [Makefile:241: docker-server] Error 1
> make[1]: Leaving directory '/work/agentregistry'
> make: *** [Makefile:117: run] Error 2
> ```
> 
> I'll look into adding a .dockerignore file to this repository that
ignores the node_modules.</issue_description>
> 
> <agent_instructions>Bootstrap a .dockerignore file that ignores the
node_modules directory along with any other files/directories relevant
to this repository. Avoid bloating this file with unnecessary
cruft.</agent_instructions>
> 
> ## Comments on the Issue (you are @copilot in this section)
> 
> <comments>
> </comments>
> 


</details>



<!-- START COPILOT CODING AGENT SUFFIX -->

- Fixes agentregistry-dev#248

<!-- START COPILOT CODING AGENT TIPS -->
---

💬 We'd love your input! Share your thoughts on Copilot coding agent in
our [2 minute survey](https://gh.io/copilot-coding-agent-survey).

---------

Co-authored-by: copilot-swe-agent[bot] <[email protected]>
Co-authored-by: timflannagan <[email protected]>