feat(11.1-03): add the Setup and Console docs sections

- setup: introduction, installation rewritten from install to serve,
  configuration with the keys an application sets
- console: introduction, setup and maintenance, scaffolding, writing
  commands, utilities; every command name is checker-verified
- bonfire ExampleCatalog shows arguments, bare and repeatable flags
- index links the section introductions; TestDocsRequiredPages lists
  the seven new pages

docs/setup/installation.md

@@ -1,12 +1,12 @@
 ---
 title: Installation
-description: Install the Go toolchain, PostgreSQL and the summer CLI you need to build a SummerCMS application.
+description: Install the Go toolchain, PostgreSQL and the summer CLI, then build, configure, migrate and serve your first SummerCMS application.
 section: setup
 order: 20
 ---
 # Installation
 
-SummerCMS is a Go module. An application requires it, lists its plugins in a `summer.yaml` manifest and builds everything into one binary with the `summer` CLI.
+SummerCMS is a Go module. An application requires it, lists its plugins in a `summer.yaml` manifest and builds everything into one binary with the `summer` CLI. This page installs the tool, then builds and runs `examples/hello`, the small reference application in the framework repository.
 
 ## Requirements
 
@@ -57,3 +57,71 @@ if err := bonfire.Call(context.Background(), commands, "acme:greet", []string{"b
 ```
 
 If the tests above pass, this example ran and printed `Hello, blog`. See the [bonfire](../../modules/bonfire/README.md) reference for flags, prompts and styled output.
+
+## Build the example application
+
+`examples/hello` has three compiled plugins. From the framework root, build it with `summer build`, which generates `plugins.gen.go` and `main.go` from `summer.yaml` and writes the binary to `bin/hello`:
+
+```sh
+cd examples/hello
+summer build
+./bin/hello --help
+./bin/hello greeter:hello
+./bin/hello key:generate
+```
+
+`greeter:hello` prints the example's layered configuration and `key:generate` prints a fresh application key. Neither needs a database.
+
+## Create the database
+
+The commands that touch data open PostgreSQL. Create a database with the locale lagoon checks for:
+
+```sql
+CREATE DATABASE hello TEMPLATE template0 ENCODING 'UTF8' LOCALE_PROVIDER icu ICU_LOCALE 'pl-PL';
+```
+
+## Configure the application
+
+Configuration comes from YAML files in `config/`. Any key can be overridden with a `SUMMER_` environment variable, in which a double underscore separates path segments: `SUMMER_DATABASE__DSN` sets `database.dsn`. [Configuration](configuration.md) explains the layers.
+
+`serve` and `route:list` need request body limits, and surf reads them as numbers, which the string-valued environment overlay cannot supply. Create `config/http.yaml` in `examples/hello`:
+
+```yaml
+body_limits:
+  default_bytes: 1048576
+  upload_bytes: 10485760
+```
+
+Then point the binary at the database, give it the application key and an uploads bucket. Replace the `<secret>` markers with your own values, and never commit them:
+
+```sh
+export SUMMER_DATABASE__DSN='postgres://acme:<secret>@127.0.0.1:5432/hello?sslmode=disable'
+export SUMMER_APP__KEY='<value printed by key:generate>'
+export SUMMER_STORAGE__UPLOADS__BUCKET_URL='mem://'
+```
+
+## Migrate and serve
+
+Run the migrations, list the routes and start the server on the loopback address:
+
+```sh
+./bin/hello migrate
+./bin/hello route:list
+./bin/hello serve --addr 127.0.0.1:8080
+curl http://127.0.0.1:8080/items/1
+```
+
+From the application directory, `summer migrate`, `summer migrate:status` and `summer serve` run the same commands through the built binary, building it first when it is missing.
+
+> [!WARNING]
+> Known issues in the current framework:
+>
+> - `examples/hello` ships no `http.body_limits` configuration, so `serve` and `route:list` fail with `surf: config http.body_limits.default_bytes is required` until you add `config/http.yaml` as shown above. The same gap makes the example's `TestTypedItemRoute` fail.
+> - lagoon refuses any database whose default locale is not ICU `pl-PL`.
+> - The committed `examples/hello/main.go` is older than what `summer build` generates now, so building the example leaves that file modified. Restore it with `git checkout -- examples/hello/main.go` if you do not intend to commit it.
+
+## Next steps
+
+- Read [Coming from WinterCMS](coming-from-wintercms.md) if you are porting a WinterCMS plugin.
+- Read the [Architecture introduction](../architecture/introduction.md) to see how the pieces fit.
+- Scaffold your own plugin with `summer make:plugin` as described in [Plugin registration](../plugins/registration.md).