Print: adopt craft-print while retaining Windows 7 support

.github/workflows/print.yml

@@ -0,0 +1,35 @@
+name: Desktop printing
+on:
+  pull_request:
+    paths:
+      - "Cargo.toml"
+      - "Cargo.lock"
+      - "apps/vectorcraft/Cargo.toml"
+      - "apps/vectorcraft/src/printing.rs"
+      - "apps/vectorcraft/src/printing/**"
+      - "crates/ui-egui/src/print.rs"
+      - "crates/ui-egui/src/tests_printps.rs"
+      - ".github/workflows/print.yml"
+  workflow_dispatch:
+permissions:
+  contents: read
+env:
+  CARGO_TERM_COLOR: always
+  CARGO_INCREMENTAL: 0
+jobs:
+  windows:
+    runs-on: windows-2022
+    timeout-minutes: 90
+    steps:
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
+      - uses: dtolnay/rust-toolchain@e2a55d2ffb04f378e9626c28d38b36d230d1e12f # master
+        with:
+          toolchain: stable
+          components: clippy
+      - uses: Swatinem/rust-cache@6323deb102c322ba6fcbdcafc7e3dddab59af2b6 # v2.9.2
+        with:
+          key: desktop-print
+      - run: cargo clippy --locked -p vectorcraft --all-targets -- -D warnings
+      - run: cargo test --locked -p vectorcraft
+      - name: Check pending submission and queue refusal feedback
+        run: cargo test --locked -p vectorcraft-ui-egui tests_printps

.github/workflows/windows7.yml

@@ -1,11 +1,22 @@
 # Experimental, unsupported Windows 7 SP1 x64 portable build (docs/windows7.md). It runs by hand and
-# weekly, so ordinary PRs never wait on it, and the weekly run shows when a dependency update starts
+# weekly and for changes to the compatibility path; the weekly run shows when a dependency update starts
 # importing a post-Windows-7 API. packaging/windows/windows7.ps1 does the work: it is the only build
 # that uses the patched vendor/windows-link. A modern Windows runner proves compilation and host
 # smoke tests only: run the checklist in docs/windows7.md on actual Windows 7 before claiming support.
 name: Windows 7 x64 compatibility
 
 on:
+  pull_request:
+    paths:
+      - "Cargo.toml"
+      - "Cargo.lock"
+      - "apps/vectorcraft/Cargo.toml"
+      - "apps/vectorcraft/src/printing.rs"
+      - "apps/vectorcraft/src/printing/**"
+      - "crates/ui-egui/src/print.rs"
+      - "crates/ui-egui/src/tests_printps.rs"
+      - "packaging/windows/windows7.ps1"
+      - ".github/workflows/windows7.yml"
   schedule:
     - cron: "23 5 * * 1" # weekly
   workflow_dispatch: