chore(ci): bound GitHub Actions triggers [skip ci]

Local trigger audit and repository hygiene passed.

.github/pull_request_template.md

@@ -13,7 +13,7 @@ Link the relevant requirement, research note, issue, and ADR, or explain why non
 ## Checklist
 
 - [ ] The branch contains one coherent change and no unrelated churn.
-- [ ] Tests and repository hygiene checks pass.
+- [ ] Required local tests and repository hygiene checks pass, and their exact evidence is listed above.
 - [ ] Security, privacy, compatibility, and licensing effects were considered.
 - [ ] Requirements, operational docs, ADRs, project memory, and status were updated where their facts changed.
 - [ ] Stale or conflicting memory and documentation were removed rather than preserved as a diary.

.github/workflows/native-sender-package.yml

@@ -2,12 +2,6 @@ name: Native sender package
 
 on:
   workflow_dispatch:
-  pull_request:
-    paths:
-      - "native/sender/**"
-      - "native/window-capture-helper/**"
-      - "scripts/package-native-sender.ps1"
-      - ".github/workflows/native-sender-package.yml"
   push:
     branches:
       - main

.github/workflows/repository-hygiene.yml

@@ -1,10 +1,10 @@
 name: CI
 
 on:
-  pull_request:
   push:
     branches:
       - main
+  workflow_dispatch:
 
 permissions:
   contents: read
@@ -20,7 +20,7 @@ jobs:
       - name: Validate tracked project state
         run: sh scripts/check-project-state.sh
         env:
-          SCREENER_BASE_SHA: ${{ github.event.pull_request.base.sha || github.event.before }}
+          SCREENER_BASE_SHA: ${{ github.event.before }}
       - name: Set up Go
         uses: actions/setup-go@v6
         with: