Add reusable Forgejo Actions

Composite actions for CI/CD workflows:
- checkout: Clone repo with configurable depth
- docker-build: Build Docker images with multiple tags
- docker-push: Push to Forgejo Packages registry
- create-tag: Auto-increment semantic version tags
- create-issue: Create issues via Forgejo API
- create-pr: Create pull requests via Forgejo API
- comment-pr: Add comments to PRs via Forgejo API

All actions use shell scripts (no Node.js required).

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

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

create-pr/action.yaml

@@ -0,0 +1,83 @@
+name: Create Pull Request
+description: Create a pull request via Forgejo API
+
+inputs:
+  token:
+    description: Forgejo API token
+    required: true
+  repository:
+    description: Repository (owner/repo)
+    default: ${{ github.repository }}
+  title:
+    description: Pull request title
+    required: true
+  body:
+    description: Pull request body
+    default: ''
+  head:
+    description: Source branch
+    required: true
+  base:
+    description: Target branch
+    default: 'main'
+  labels:
+    description: Comma-separated label names
+    default: ''
+  assignees:
+    description: Comma-separated usernames to assign
+    default: ''
+
+outputs:
+  number:
+    description: Created PR number
+    value: ${{ steps.create.outputs.number }}
+  url:
+    description: PR URL
+    value: ${{ steps.create.outputs.url }}
+
+runs:
+  using: composite
+  steps:
+    - id: create
+      shell: bash
+      run: |
+        TOKEN="${{ inputs.token }}"
+        REPO="${{ inputs.repository }}"
+        TITLE="${{ inputs.title }}"
+        BODY="${{ inputs.body }}"
+        HEAD="${{ inputs.head }}"
+        BASE="${{ inputs.base }}"
+        LABELS="${{ inputs.labels }}"
+        ASSIGNEES="${{ inputs.assignees }}"
+
+        # Build JSON payload
+        JSON=$(jq -n \
+          --arg title "$TITLE" \
+          --arg body "$BODY" \
+          --arg head "$HEAD" \
+          --arg base "$BASE" \
+          '{title: $title, body: $body, head: $head, base: $base}')
+
+        # Add labels if provided
+        if [ -n "$LABELS" ]; then
+          LABELS_JSON=$(echo "$LABELS" | tr ',' '\n' | jq -R . | jq -s .)
+          JSON=$(echo "$JSON" | jq --argjson labels "$LABELS_JSON" '. + {labels: $labels}')
+        fi
+
+        # Add assignees if provided
+        if [ -n "$ASSIGNEES" ]; then
+          ASSIGNEES_JSON=$(echo "$ASSIGNEES" | tr ',' '\n' | jq -R . | jq -s .)
+          JSON=$(echo "$JSON" | jq --argjson assignees "$ASSIGNEES_JSON" '. + {assignees: $assignees}')
+        fi
+
+        RESPONSE=$(curl -s -X POST \
+          "https://code.flowmade.one/api/v1/repos/$REPO/pulls" \
+          -H "Authorization: token $TOKEN" \
+          -H "Content-Type: application/json" \
+          -d "$JSON")
+
+        NUMBER=$(echo "$RESPONSE" | jq -r '.number')
+        URL=$(echo "$RESPONSE" | jq -r '.html_url')
+
+        echo "number=$NUMBER" >> $GITHUB_OUTPUT
+        echo "url=$URL" >> $GITHUB_OUTPUT