docs(cordis-tutorial): address review — effect-wrap demo timer, drop entry-order promise, stable ids in HMR example

docs/cordis-tutorial/01-first-plugin.md

@@ -26,7 +26,7 @@ This tutorial's launcher assembles the application from configuration. Create `c
 - name: './hello.ts'
 ```
 
-The file is a list of plugin entries. `name` is a module specifier — a relative path or an npm package name — and the loader mounts each entry in order.
+The file is a list of plugin entries. `name` is a module specifier — a relative path or an npm package name — and the loader mounts every entry. Entries start concurrently, so list position guarantees nothing about which plugin loads first; ordering comes from service dependencies (`inject`, [chapter 3](03-services.md)), not from position in the file.
 
 ## Run it
 

docs/cordis-tutorial/02-lifecycle-and-effects.md

@@ -27,11 +27,16 @@ function heartbeat(ctx: Context) {
 export function apply(ctx: Context) {
   // Mount a child plugin and keep its fiber to dispose it later.
   const fiber = ctx.plugin(heartbeat)
-  setTimeout(async () => {
-    await fiber.dispose()
-    console.log('disposed')
-    process.exit(0)
-  }, 700)
+  // The demo timer is itself an effect: if THIS plugin is unloaded first,
+  // the pending callback is cancelled instead of firing on a dead app.
+  ctx.effect(() => {
+    const timer = setTimeout(async () => {
+      await fiber.dispose()
+      console.log('disposed')
+      process.exit(0)
+    }, 700)
+    return () => clearTimeout(timer)
+  })
 }
 ```
 

docs/cordis-tutorial/06-composition-and-hmr.md

@@ -25,12 +25,16 @@ Because unloading releases effects ([chapter 2](02-lifecycle-and-effects.md)) an
 In `tmp/cordis-tutorial`, write `cordis.yml`:
 
 ```yaml
-- name: '@cordisjs/plugin-logger-console'
-- name: '@cordisjs/plugin-timer'
-- name: '@cordisjs/plugin-hmr'
+- id: logger
+  name: '@cordisjs/plugin-logger-console'
+- id: timer
+  name: '@cordisjs/plugin-timer'
+- id: hmr
+  name: '@cordisjs/plugin-hmr'
   config:
     root: ['.']
-- name: './hello.ts'
+- id: hello
+  name: './hello.ts'
 ```
 
 Two support plugins joined the list: HMR logs through the Cordis logger service, so without a console exporter you would not see its messages, and it `inject`s the `timer` service for debouncing — without `@cordisjs/plugin-timer` it sits in PENDING forever, silently. That silence is the subject of the next section.
@@ -50,7 +54,7 @@ hello from my first plugin
 hello from my EDITED plugin
 ```
 
-The old instance unloaded (all its effects unwound), the new code loaded, `apply` ran again. Stop the process with Ctrl-C. Editing `cordis.yml` itself is also picked up: the loader diffs entries by `id` and mounts, unmounts, or reconfigures only what changed.
+The old instance unloaded (all its effects unwound), the new code loaded, `apply` ran again. Stop the process with Ctrl-C. Editing `cordis.yml` itself is also picked up: the loader diffs entries by `id` and mounts, unmounts, or reconfigures only what changed. This is why the entries above carry explicit `id`s — an entry without one gets a generated id on every read, so after any config-file edit it counts as removed-plus-added and remounts even if its own lines did not change.
 
 ## Diagnosing a plugin that never loads