Add dev containers, musl build

.forgejo/workflows/verify.yaml

@@ -0,0 +1,50 @@
+on:
+  push:
+    branches:
+      - '*'
+    paths:
+      - src/**
+      - tests/**
+      - static/graph.toml
+      - .forgejo/**
+      - Cargo.toml
+      - Cargo.lock
+jobs:
+  verify:
+    runs-on: docker
+    timeout-minutes: 20
+    container:
+      image: rust:slim
+    steps:
+      - name: Install action dependencies
+        run: apt-get install --no-install-recommends --update -y nodejs curl git
+
+      - name: Checkout code
+        uses: actions/checkout@v6
+        with:
+          fetch-tags: true
+
+      - name: Setup Rust toolchain
+        run: |
+          rustup component add llvm-tools-preview
+          rustup component add --toolchain nightly rustfmt clippy
+          rustup target add x86_64-unknown-linux-gnu
+          rustup target add x86_64-unknown-linux-musl
+
+      - name: Setup additional tooling
+        run: .forgejo/workflows/setup-tools.sh
+
+      - name: Build
+        run: just build
+
+      - name: Format
+        run: just format-assess
+      - name: Lint
+        run: just lint-assess
+      - name: Cargo check
+        run: just check
+      - name: Test
+        run: just test
+      - name: Assess test coverage
+        run: just cover-assess
+