test: backfill raw/global/computed report triplet coverage across plugins

The bats coverage for plugin :report keys has been uneven since the raw/global/computed split landed in PR #8640. This commit adds a single combined triplet test per settable property across app-json, builder, builder-dockerfile, builder-herokuish, builder-lambda, builder-nixpacks, builder-pack, builder-railpack, buildpacks, cron (maintenance), git (keep-git-dir, rev-env-var, source-image), logs (vector-sink, vector-global-image, vector-global-networks), network (attach-post-create, attach-post-deploy, initial-network), proxy (per-app type), ps (stop-timeout-seconds), registry (image-repo, push-on-release, push-extra-tags), storage (build/deploy/run mounts), and adds a new tests/unit/scheduler.bats and tests/unit/nginx-vhosts_properties.bats. Brings ps `procfile-path` and `stop-timeout-seconds` global getters in line with the #8640 convention (raw global, default resolved in computed). Documents the read-only and internal properties that surface in `:report` (or are written by Dokku) but cannot be managed by `:set` in a new `## Internal properties` section appended to each affected plugin's docs page.

docs/deployment/application-management.md

@@ -312,3 +312,15 @@ You can pass flags which will output only the value of the specific information
 ```shell
 dokku apps:report node-js-app --app-dir
 ```
+
+## Internal properties
+
+The following properties surface in `apps:report` but are not managed by `apps:set` - they are derived metadata recorded by the plugin:
+
+| Property | Kind | Description | Source |
+|---|---|---|---|
+| `--app-created-at` | read-only | UNIX timestamp of app creation | written when the app directory is created in `plugins/apps/functions.go` |
+| `--app-deploy-source` | read-only | Source kind of the last deploy (`git`, `archive`, `docker-image`, `git-sync`) | set via the `deploy-source-set` plugin trigger |
+| `--app-deploy-source-metadata` | read-only | Free-form metadata for the deploy source (commit sha, image ref, URL) | set via the `deploy-source-set` plugin trigger |
+| `--app-dir` | read-only | Absolute path of the app root on disk | derived from `DOKKU_ROOT` and the app name |
+| `--app-locked` | read-only | `true` while a deploy or rebuild holds the app lock | `plugins/apps/functions.go` lock helpers |

docs/deployment/builders/builder-management.md

@@ -172,3 +172,11 @@ Custom plugins names _must_ have the prefix `builder-` or builder overriding via
 Builders can use any tools available on the system to build the docker image, and may even be used to schedule building off-server. The only current requirement is that the image must exist on the server at the end of the `builder-build` command, though this requirement may be relaxed in a future release.
 
 For a simple example of how to implement this trigger, see `builder-pack`, which utilizes a cli tool - `pack-cli` - to generate an OCI image that is compatible with Docker and can be scheduled by the official scheduling plugins.
+
+## Internal properties
+
+The following properties surface in `builder:report` but are not managed by `builder:set`:
+
+| Property | Kind | Description | Source |
+|---|---|---|---|
+| `--builder-detected` | read-only | Builder auto-selected for the app when `selected` is unset | `builder-detect` plugin trigger run on demand |

docs/deployment/methods/git.md

@@ -318,3 +318,12 @@ dokku git:report node-js-app --format json
 ```
 
 The `--format` flag cannot be combined with an info flag.
+
+## Internal properties
+
+The following properties surface in `git:report` but are not managed by `git:set` - they are derived from repository state:
+
+| Property | Kind | Description | Source |
+|---|---|---|---|
+| `--git-sha` | read-only | HEAD commit SHA of the app's git repo | `git rev-parse HEAD` against `$APP_ROOT` |
+| `--git-last-updated-at` | read-only | UNIX timestamp of the last write to the deploy branch ref | `stat -c %Y` on `refs/heads/<deploy-branch>` |