fix(template): allow pinned security scanner containers

Hosted bootstrap showed that GitHub rejects the security builder container actions under the selected-actions policy. Permit only its exact published Gitleaks and Trivy image digests; preserve selected actions and required security gates.

Validation: 55 script cases, full analysis of changed module/tests, guide lint and normal hooks.

Refs: KofTwentyTwo/AppKit#10, KofTwentyTwo/AppKit#20

Co-Authored-By: Codex (GPT-6) <noreply@openai.com>
Signed-off-by: James Maes <james@kof22.com>

CONTRIBUTING.md

@@ -90,8 +90,8 @@ pre-commit install --hook-type pre-commit --hook-type commit-msg
 | `ci / build-test` | Locked restore, zero-warning build, unit tests, 100% coverage gate |
 | `ci / format` | `dotnet format --verify-no-changes --severity warn` |
 | `ci / ui-tests` | FlaUI end-to-end tests of the app |
-| `ci / installed-updates` | Real stable/dev installers, upgrades, restart and published-output UI smoke |
-| `scripts / powershell`, `scripts / javascript` | Tool lint, setup/coverage boundary tests, review tests and dependency signatures |
+| `installed-updates` | Real stable/dev installers, upgrades, restart and published-output UI smoke |
+| `powershell`, `javascript` | Tool lint, setup/coverage boundary tests, review tests and dependency signatures |
 | `codeql / analyze (javascript-typescript)` | Static analysis of repository review tooling |
 | `review / automated` (single maintainer) | Current-commit automated review acknowledged by the configured human maintainer |
 

README.md

@@ -61,6 +61,8 @@ Prerequisites:
 - Optionally Visual Studio 2026 (Windows App SDK workload) or Rider
 
 ```powershell
+# Once after generation, create and commit the NuGet locks locally:
+# dotnet restore Kof22App.slnx -p:Platform=x64
 dotnet restore Kof22App.slnx -p:Platform=x64 --locked-mode
 dotnet build Kof22App.slnx -p:Platform=x64 -warnaserror
 dotnet test Kof22App.slnx -p:Platform=x64 --no-build --filter "FullyQualifiedName!~UiTests"

TEMPLATE.md

@@ -18,6 +18,15 @@ dotnet new k22-winapp -n Contoso.Notes --appId contoso-notes --displayName "Cont
    --description "Quick notes that stay out of the way." -o Contoso.Notes
 ```
 
+To try the installable package before its first publication, run from this clone:
+
+```powershell
+dotnet pack templates/KofTwentyTwo.Templates.WindowsApp.csproj -c Release -p:Version=0.1.0 -p:RestoreLockedMode=true -o artifacts/template
+dotnet new install ./artifacts/template/KofTwentyTwo.Templates.WindowsApp.0.1.0.nupkg
+dotnet new k22-winapp -n Contoso.Notes --appId contoso-notes --displayName "Contoso Notes" -o artifacts/Contoso.Notes
+# Add --cli false for a GUI-only app; use a fresh output directory each time.
+```
+
 | Option | Default | What it sets |
 | --- | --- | --- |
 | `-n`, `--name` | (required) | Solution, project, namespace, and executable names (`Contoso.Notes.slnx`, `Contoso.Notes.Core`, `Contoso.Notes.exe`), and the repository name in links |
@@ -32,8 +41,10 @@ The copyright year in license headers becomes the current year.
 
 ## After generating
 
-The generator omits dependency lock files. Before the first commit, run the README's
-restore, build, test, coverage and format commands, then commit the resulting
+The generator omits NuGet dependency lock files. Before the first commit, run
+`dotnet restore <name>.slnx -p:Platform=x64` in the generated directory to create
+them, then run the README's locked restore, build, test, coverage and format
+commands. Commit the resulting
 `packages.lock.json` files. Install the included hooks with
 `pre-commit install --hook-type pre-commit --hook-type commit-msg` after `git init`.
 The generated PowerShell tooling gate uses PSScriptAnalyzer 1.25.0.
@@ -41,12 +52,10 @@ The generated PowerShell tooling gate uses PSScriptAnalyzer 1.25.0.
 1. Follow [the preview/apply/validate setup runbook](docs/repository-setup.md).
    Create the GitHub repository (public, Product tier), push `main`, and apply the
    [repository standard's](https://github.com/KofTwentyTwo/standards/blob/main/standards/repository.md)
-   settings and rulesets, with these required checks: `pr / title`, `pr / dco`,
-   `pr / dependency-review`, `security / secrets`, `security / sca`,
-   `security / workflows`, `codeql / analyze (csharp)`, `codeql / analyze (actions)`,
-   `ci / build-test`, `ci / format`, `ci / ui-tests`, `scripts / powershell`,
-   `scripts / javascript`, `codeql / analyze (javascript-typescript)`, and
-   `review / automated` for the single-maintainer policy.
+   settings and rulesets. Use the setup tool's required contexts and
+   [CONTRIBUTING.md](CONTRIBUTING.md)'s check table; standalone job names have no
+   workflow-name prefix. The source repository additionally requires `template`;
+   generated application repositories do not.
 2. Create the `release` environment limited to `v*` tags, and list the repository in the
    [standards repository inventory](https://github.com/KofTwentyTwo/standards/blob/main/MAINTAINERS.md#repositories)
    (`K22-REPO-42`; the conformance checker fails until it is listed).

build/GitHubRepository.Tests.ps1

@@ -47,6 +47,21 @@ Describe 'Required checks match standalone workflow jobs' `
 
 Describe 'Generated repository administration' `
 {
+   It 'allows the digest-pinned security containers without permitting arbitrary container actions' `
+   {
+      $plan = Get-GitHubRepositoryPlan -Repository 'Example/Notes'
+      $policy = ($plan.Requests | Where-Object Path -Like '*/actions/permissions/selected-actions').Body
+      $policy.patterns_allowed.Count | Should -Be 3
+      $policy.patterns_allowed | Should -Contain 'KofTwentyTwo/standards/*@*'
+      $containers = @($policy.patterns_allowed | Where-Object { $_.StartsWith('docker://', [StringComparison]::Ordinal) })
+      $containers.Count | Should -Be 2
+      foreach($container in $containers)
+      {
+         $container | Should -Match '^docker://ghcr\.io/(gitleaks/gitleaks:v8\.30\.1|aquasecurity/trivy:0\.75\.0)@sha256:[0-9a-f]{64}$'
+         $container | Should -Not -Match '\*'
+      }
+   }
+
    InModuleScope GitHubRepository `
    {
       BeforeEach `

build/GitHubRepository.psm1

@@ -74,7 +74,14 @@ function Get-GitHubRepositoryPlan
       @{ Method = 'PUT'; Path = "$root/actions/permissions/workflow"; Body = @{ default_workflow_permissions = 'read'; can_approve_pull_request_reviews = $false } },
       @{ Method = 'PUT'; Path = "$root/actions/permissions/fork-pr-contributor-approval"; Body = @{ approval_policy = 'all_external_contributors' } },
       @{ Method = 'PUT'; Path = "$root/actions/permissions"; Body = @{ enabled = $true; allowed_actions = 'selected' } },
-      @{ Method = 'PUT'; Path = "$root/actions/permissions/selected-actions"; Body = @{ github_owned_allowed = $true; verified_allowed = $true; patterns_allowed = @('KofTwentyTwo/standards/*@*') } },
+      @{ Method = 'PUT'; Path = "$root/actions/permissions/selected-actions"; Body = @{
+            github_owned_allowed = $true; verified_allowed = $true
+            # Exact container actions used by the published v0.1.2 security builder.
+            patterns_allowed = @('KofTwentyTwo/standards/*@*',
+               'docker://ghcr.io/gitleaks/gitleaks:v8.30.1@sha256:c00b6bd0aeb3071cbcb79009cb16a60dd9e0a7c60e2be9ab65d25e6bc8abbb7f',
+               'docker://ghcr.io/aquasecurity/trivy:0.75.0@sha256:af6acf9a6b85dfe389a1941505c0ce9efef52a4719635e1a962f022a3d855daa')
+         }
+      },
       @{ Method = 'PUT'; Path = "$root/environments/release"; Body = @{ deployment_branch_policy = @{ protected_branches = $false; custom_branch_policies = $true } } },
       @{ Method = 'POST'; Path = "$root/environments/release/deployment-branch-policies"; Body = @{ name = 'v*'; type = 'tag' } },
       @{ Method = 'POST'; Path = "$root/rulesets"; Body = $main },

docs/repository-setup.md

@@ -66,6 +66,12 @@ and environment protections are retained. API failures stop immediately; earlier
 successful requests may remain, so validate and resolve the reported failure before
 rerunning. The tool never creates repositories, pushes, merges, tags or releases.
 
+The selected Actions policy permits the shared standards workflows, GitHub-owned
+and verified actions, and the exact digest-pinned Gitleaks/Trivy container actions
+used by the published security builder. GitHub also checks container actions
+against this policy; missing entries prevent the security workflow from starting.
+Review these exact references whenever the shared builder pin changes.
+
 ## Finish and verify
 
 Register ownership/tier in the standards `MAINTAINERS.md` inventory through a