feat: integrate client and server sharing workflows

.woodpecker/ci.yml

@@ -0,0 +1,38 @@
+when:
+  - event: [push, pull_request]
+
+steps:
+  api-contract:
+    image: node:24.21.0-alpine3.23
+    commands:
+      - node scripts/check-api-contract.mjs
+
+  core-and-web:
+    image: node:24.21.0-alpine3.23
+    directory: packages/core
+    commands:
+      - npm ci
+      - npm run typecheck
+      - npm test
+      - npm run vectors:check
+      - npm run build
+
+  web:
+    image: node:24.21.0-alpine3.23
+    directory: web
+    commands:
+      - npm ci
+      - npm run typecheck
+      - npm run lint:css
+      - npm test
+      - npm run build
+
+  server:
+    image: mcr.microsoft.com/dotnet/sdk:10.0
+    commands:
+      - dotnet test server/WebDrop.slnx --configuration Release --verbosity minimal
+
+  compose-config:
+    image: docker:29.8.1-cli-alpine3.24
+    commands:
+      - docker compose --env-file .env.example config --quiet