Skeleton for the Coding Agent. (#1)

Reviewed-on: #1
Co-authored-by: Drew Galbraith <drew@tiramisu.one>
Co-committed-by: Drew Galbraith <drew@tiramisu.one>

.forgejo/workflows/ci.yml

@@ -0,0 +1,37 @@
+name: CI
+
+on:
+  # TODO: re-enable once runners are fixed
+  push:
+    branches: [does_not_exist] # [ main ]
+  # pull_request:
+
+jobs:
+  ci:
+    runs-on: docker
+    container:
+      image: rust:latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Install rustfmt and clippy
+        run: rustup component add rustfmt clippy
+
+      - name: Cache cargo registry
+        uses: actions/cache@v4
+        with:
+          path: |
+            ~/.cargo/registry
+            ~/.cargo/git
+            target
+          key: ${{ runner.os }}-cargo-${{ hashFiles('**/Cargo.lock') }}
+          restore-keys: ${{ runner.os }}-cargo-
+
+      - name: Build
+        run: cargo build
+
+      - name: Format
+        run: cargo fmt --check
+
+      - name: Clippy
+        run: cargo clippy -- -D warnings