CI: run the gate through craft-common-actions' shared gate.yml; FreeBSD nightly and on release (#2204)

ci.yml is new: it calls the shared workflow (cached apt packages, nextest, main-only cache saves, Cargo.lock check). FreeBSD runs nightly and on pushes to release instead of on pull requests. Depends on storytold/craft-common-actions#69.

.github/workflows/ci.yml

@@ -0,0 +1,27 @@
+name: CI
+
+# Quality gates for every push to main and every pull request (`cargo xtask ci`), through the
+# suite's shared gate workflow in craft-common-actions.
+on:
+  push:
+    branches: [main]
+  pull_request:
+  workflow_dispatch:
+
+permissions:
+  contents: read
+
+# A newer push to a PR branch cancels its older run; every push to main runs to the end.
+concurrency:
+  group: ci-${{ github.event_name == 'pull_request' && github.ref || github.run_id }}
+  cancel-in-progress: ${{ github.event_name == 'pull_request' }}
+
+jobs:
+  gate:
+    # Tracks @main so suite-wide CI fixes reach every app without a PR in each repository.
+    uses: storytold/craft-common-actions/.github/workflows/gate.yml@main
+    with:
+      packages: >-
+        pkg-config libxkbcommon-dev libwayland-dev libx11-dev libxcb1-dev libxcursor-dev
+        libxrandr-dev libxi-dev libfontconfig1-dev libfreetype-dev mesa-vulkan-drivers
+        libgl1-mesa-dev libasound2-dev

.github/workflows/freebsd.yml

@@ -2,12 +2,10 @@
 # (GitHub has no FreeBSD runners). GPU tests skip themselves when the VM has no adapter.
 name: FreeBSD
 
-# The VM build is slow, so it runs nightly on main and on pushes to `release`, not on every push
-# or dependency change: a drifted dependency still shows up within a day, and always before a
-# release ships. PRs that change the FreeBSD packaging itself still run it.
+# The VM build is slow, so it runs nightly on main and on pushes to `release`, not on every pull
+# request: a drifted dependency still shows up within a day, and always before a release ships.
+# PRs that change the FreeBSD workflow or packaging itself still run it.
 on:
-  schedule:
-    - cron: "47 2 * * *"
   push:
     branches: [release]
   pull_request:
@@ -15,6 +13,8 @@ on:
       - .github/workflows/freebsd.yml
       - packaging/freebsd/**
       - packaging/env.sh
+  schedule:
+    - cron: "47 2 * * *"
   workflow_dispatch:
 
 concurrency: