ci: add woodpecker pipeline

.woodpecker.yml

@@ -0,0 +1,30 @@
+steps:
+  backend:
+    image: rust:1.76-bookworm
+    environment:
+      DATABASE_URL: postgres://postgres:postgres@postgres:5432/likwid_ci
+      RUST_BACKTRACE: 1
+    commands:
+      - rustup component add rustfmt clippy
+      - cargo install sqlx-cli --no-default-features --features postgres,tls-rustls
+      - cd backend
+      - sqlx migrate run
+      - cargo fmt --all -- --check
+      - cargo clippy --all-targets --all-features -- -D warnings
+      - cargo test --all
+      - cargo build --release
+
+  frontend:
+    image: node:20-bookworm
+    commands:
+      - cd frontend
+      - npm ci
+      - npm run build
+
+services:
+  postgres:
+    image: postgres:16
+    environment:
+      POSTGRES_USER: postgres
+      POSTGRES_PASSWORD: postgres
+      POSTGRES_DB: likwid_ci