bring dev changes to v2 (#6353)

Co-authored-by: homarr-renovate[bot] <158783068+homarr-renovate[bot]@users.noreply.github.com>

.github/act/.gitignore

@@ -0,0 +1,2 @@
+.secrets
+!.secrets.example

.github/act/.secrets.example

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+TURBO_API=
+TURBO_TEAM=
+TURBO_TOKEN=
+TURBO_REMOTE_CACHE_SIGNATURE_KEY=

.github/act/README.md

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+# Running CI locally
+
+Install [Act](https://nektosact.com/installation/index.html) and ensure Docker is running, then use:
+
+```bash
+pnpm ci:act:fast
+pnpm ci:act:docker
+pnpm ci:act:all
+pnpm ci:act:cleanup
+```
+
+`fast` runs the quality gate. `docker` and `all` run the gate followed by the single container build, E2E suite, and memory regression test. `cleanup` validates the manual cleanup path without calling GitHub. The wrapper supports regular clones and Git worktrees, including non-default Docker contexts. Linux dependencies are kept in Docker volumes instead of overwriting host `node_modules`. The first run downloads the Act runner and Playwright browser dependencies.
+
+Remote caching is optional locally. Copy `.github/act/.secrets.example` to `.github/act/.secrets`, populate it with rotated credentials, and run with:
+
+```bash
+ACT_SECRET_FILE=.github/act/.secrets pnpm ci:act:all
+```
+
+Act never publishes or deletes GHCR images. The secret file is ignored by Git.
+
+## PR preview images
+
+Successful non-draft pull requests from this repository publish an amd64 image:
+
+```bash
+docker pull ghcr.io/homarr-labs/homarr-test:pr-<number>
+```
+
+The tag is replaced when the pull request is updated and deleted when it closes. Production Homarr images remain the supported multi-architecture releases. The `homarr-test` package must be configured as public in GHCR for unauthenticated testers.
+
+## Dokploy preview cache
+
+Keep `needs-demo` as the Dokploy preview label. Under the application's **Preview Build-time Secrets**, configure `TURBO_API`, `TURBO_TEAM`, `TURBO_TOKEN`, and `TURBO_REMOTE_CACHE_SIGNATURE_KEY`. Dokploy passes these to the Dockerfile as BuildKit secrets. Do not configure the token or signature key as Docker build arguments.
+
+Rotate any credentials that have appeared in chat, logs, or committed configuration before enabling the cache.

.github/act/workshop.md

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-# Workshop deployment with ACT
-
-The Workshop workflow builds the same image used on the VPS and smoke-tests both Docusaurus and PocketBase. Registry login and pushes are skipped under ACT.
-
-From the repository root:
-
-```sh
-pnpm ci:act:workshop
-```
-
-The wrapper selects `.github/workflows/deployment-workshop.yml`, derives the active Docker socket (including Docker Desktop and OrbStack contexts), and runs only the `deploy` job using a `workflow_dispatch` event.
-
-To inspect the workflow without running it:
-
-```sh
-act workflow_dispatch --list --workflows .github/workflows/deployment-workshop.yml
-```
-
-No GitHub or registry secrets are required for the local run.