Updated instructions and readme.

Author: cerebrate

.github/copilot-instructions.md

@@ -39,6 +39,11 @@ links, and growing to include more complex features over time.
 - Launch profiles/ports are in `h2s/Properties/launchSettings.json`.
 - There is currently no test project in this workspace; validate changes with build + manual page checks.
 - In production, the app will be hosted in a container, built using the `h2s/Dockerfile`. The container expects the database file to be mounted at `/app/data/h2s.db`.
+- Container publish automation lives in `.github/workflows/publish-container.yml`:
+  - Triggered by tag pushes and manual runs.
+  - For tag pushes, publish only occurs when the tagged commit is on `master`.
+  - For manual runs, the workflow publishes using the latest git tag.
+  - Images are pushed to GitHub Container Registry (`ghcr.io/<owner>/<repo>`) with both `<tag>` and `latest` tags.
 
 ## Code-change guidance for agents
 - Prefer Razor Pages patterns already used here (not MVC controllers or Blazor components).

README.md

@@ -1 +1,35 @@
-# h2s
+# h2s
+
+h2s is an ASP.NET Core Razor Pages intranet dashboard app.
+
+It stores dashboard data in SQLite using EF Core and is designed to run both locally and in a container.
+
+## Run locally
+
+From the repository root:
+
+```bash
+dotnet run --project h2s/h2s.csproj
+```
+
+## Build the container
+
+From the repository root:
+
+```bash
+docker build -t h2s:local -f h2s/Dockerfile h2s
+```
+
+## Run the container
+
+Create a local folder for persistent data, then run:
+
+```bash
+docker run --rm -p 8080:8080 -e ASPNETCORE_URLS=http://+:8080 -v "$(pwd)/data:/app/data" h2s:local
+```
+
+The app expects the SQLite database at `/app/data/h2s.db` inside the container.
+
+## Container publishing
+
+A GitHub Actions workflow (`.github/workflows/publish-container.yml`) publishes images to GitHub Container Registry when a tag is pushed (if the tag commit is on `master`) or when manually dispatched (using the latest tag).