fix: use separate pipeline files instead of multi-document YAML

YAML anchors don't work across document boundaries in multi-document
files. Using separate files in .woodpecker/ directory instead, which
is the recommended approach and matches WeightTracker's pattern.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

.woodpecker/release.yml

@@ -0,0 +1,138 @@
+# Release Pipeline - Build, test, version, package, release
+when:
+  - event: push
+    branch: main
+
+steps:
+  - name: restore
+    image: mcr.microsoft.com/dotnet/sdk:10.0-preview
+    commands:
+      - dotnet restore
+
+  - name: build
+    image: mcr.microsoft.com/dotnet/sdk:10.0-preview
+    commands:
+      - dotnet build --no-restore -c Release
+    depends_on: [restore]
+
+  - name: test
+    image: mcr.microsoft.com/dotnet/sdk:10.0-preview
+    commands:
+      - dotnet test --no-build -c Release --logger "console;verbosity=detailed"
+    depends_on: [build]
+
+  # Determine next version based on conventional commits
+  - name: version
+    image: alpine/git
+    commands:
+      - apk add --no-cache bash
+      - |
+        # Get the latest tag or default to v0.0.0
+        LATEST_TAG=$(git describe --tags --abbrev=0 2>/dev/null || echo "v0.0.0")
+        echo "Latest tag: $LATEST_TAG"
+
+        # Parse current version
+        VERSION=${LATEST_TAG#v}
+        MAJOR=$(echo $VERSION | cut -d. -f1)
+        MINOR=$(echo $VERSION | cut -d. -f2)
+        PATCH=$(echo $VERSION | cut -d. -f3)
+
+        # Get commits since last tag
+        if [ "$LATEST_TAG" = "v0.0.0" ]; then
+          COMMITS=$(git log --pretty=format:"%s" HEAD)
+        else
+          COMMITS=$(git log --pretty=format:"%s" ${LATEST_TAG}..HEAD)
+        fi
+
+        # Determine bump type from conventional commits
+        BUMP="patch"
+        if echo "$COMMITS" | grep -qiE "^feat(\(.+\))?!:|BREAKING CHANGE:"; then
+          BUMP="major"
+        elif echo "$COMMITS" | grep -qiE "^feat(\(.+\))?:"; then
+          BUMP="minor"
+        fi
+
+        echo "Bump type: $BUMP"
+
+        # Calculate new version
+        case $BUMP in
+          major)
+            MAJOR=$((MAJOR + 1))
+            MINOR=0
+            PATCH=0
+            ;;
+          minor)
+            MINOR=$((MINOR + 1))
+            PATCH=0
+            ;;
+          patch)
+            PATCH=$((PATCH + 1))
+            ;;
+        esac
+
+        NEW_VERSION="${MAJOR}.${MINOR}.${PATCH}"
+        echo "New version: $NEW_VERSION"
+
+        # Save version for other steps
+        echo "$NEW_VERSION" > .version
+        echo "v${NEW_VERSION}" > .tag
+    depends_on: [test]
+
+  # Package NuGet
+  - name: package
+    image: mcr.microsoft.com/dotnet/sdk:10.0-preview
+    commands:
+      - VERSION=$(cat .version)
+      - echo "Packaging version $VERSION"
+      - dotnet pack PaperlessMCP/PaperlessMCP.csproj --no-build -c Release -o ./artifacts /p:Version=$VERSION /p:PackageVersion=$VERSION
+      - ls -la ./artifacts/
+    depends_on: [version]
+
+  # Build and push Docker with Kaniko
+  - name: docker
+    image: gcr.io/kaniko-project/executor:debug
+    environment:
+      GHCR_USERNAME:
+        from_secret: github_username
+      GHCR_TOKEN:
+        from_secret: github_token
+    commands:
+      - VERSION=$(cat .version)
+      - mkdir -p /kaniko/.docker
+      - echo "{\"auths\":{\"ghcr.io\":{\"username\":\"$GHCR_USERNAME\",\"password\":\"$GHCR_TOKEN\"}}}" > /kaniko/.docker/config.json
+      - /kaniko/executor
+        --context=$CI_WORKSPACE/PaperlessMCP
+        --dockerfile=$CI_WORKSPACE/PaperlessMCP/Dockerfile
+        --destination=ghcr.io/barryw/paperlessmcp:v${VERSION}
+        --destination=ghcr.io/barryw/paperlessmcp:latest
+        --build-arg=VERSION=${VERSION}
+    depends_on: [version]
+
+  # Create git tag and push
+  - name: git-tag
+    image: alpine/git
+    environment:
+      GITHUB_TOKEN:
+        from_secret: github_token
+    commands:
+      - TAG=$(cat .tag)
+      - VERSION=$(cat .version)
+      - echo "Creating tag $TAG"
+      - |
+        git config user.email "ci@woodpecker.local"
+        git config user.name "Woodpecker CI"
+        git remote set-url origin https://x-access-token:${GITHUB_TOKEN}@github.com/barryw/PaperlessMCP.git
+        git tag -a "$TAG" -m "Release $VERSION"
+        git push origin "$TAG"
+    depends_on: [package, docker]
+
+  # Create GitHub release
+  - name: release
+    image: woodpeckerci/plugin-github-release
+    settings:
+      api_key:
+        from_secret: github_token
+      files:
+        - artifacts/*.nupkg
+      prerelease: false
+    depends_on: [git-tag]