feat(ci): add workflows for nightly builds and releases

- Introduce separate workflows for nightly and release builds
- Add scripts for version management, asset uploads, and cleanup
- Improve Python environment setup and dependency caching

.gitea/default_merge_message/MERGE_TEMPLATE.md

@@ -0,0 +1,5 @@
+chore(pr): ${PullRequestTitle} ${PullRequestReference}
+
+${PullRequestDescription}
+
+Merged from ${HeadBranch} into ${BaseBranch}

.gitea/scripts/cleanup_versions.sh

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+#!/usr/bin/env bash
+set -euo pipefail
+
+# cleanup_dev_versions.sh - Delete old PyPI dev versions from Gitea package registry
+
+# Required environment variables
+USERNAME="${TWINE_USERNAME}"
+TOKEN="${TWINE_PASSWORD}"
+REPO="${GITHUB_REPOSITORY}"             # e.g., maxp/repocat
+API_BASE="${GITHUB_API_URL%/}"         # Strip trailing slash if present
+
+OWNER="${REPO%%/*}"
+PACKAGE_NAME="${REPO##*/}"
+API_URL="${API_BASE}/packages/${OWNER}/pypi/${PACKAGE_NAME}"
+
+# Fetch the list of versions
+response=$(curl -s -u "$USERNAME:$TOKEN" "$API_URL")
+
+# Extract all .dev versions, sort by creation time
+mapfile -t versions_to_delete < <(echo "$response" | jq -r '
+  map(select(.version | test("\\.dev"))) |
+  sort_by(.created_at) |
+  .[0:-1][] |
+  .version')
+
+# Determine latest version to keep
+latest_version=$(echo "$response" | jq -r '
+  map(select(.version | test("\\.dev"))) |
+  sort_by(.created_at) |
+  last.version')
+
+if [[ -z "$latest_version" || ${#versions_to_delete[@]} -eq 0 ]]; then
+  echo "No old .dev versions to delete."
+  exit 0
+fi
+
+echo "Keeping latest .dev version: $latest_version"
+
+# Delete old .dev versions
+for version in "${versions_to_delete[@]}"; do
+  echo "Deleting old .dev version: $version"
+  curl -s -X DELETE -u "$USERNAME:$TOKEN" "$API_URL/$version"
+done
+
+echo "Cleanup complete."

.gitea/scripts/get-release-id.sh

@@ -0,0 +1,21 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+# Eingaben
+TAG="$1"
+TOKEN="${ACTIONS_RUNTIME_TOKEN:-<fallback_token>}"
+REPO="${GITHUB_REPOSITORY:-owner/example}"
+API="${GITHUB_API_URL:-https://gitea.example.tld/api/v1}"
+
+OWNER=$(echo "$REPO" | cut -d/ -f1)
+NAME=$(echo "$REPO" | cut -d/ -f2)
+
+RESPONSE=$(curl -sf \
+  -H "Authorization: token $TOKEN" \
+  "$API/repos/$OWNER/$NAME/releases/tags/$TAG")
+
+RELEASE_ID=$(echo "$RESPONSE" | jq -r '.id')
+echo "Release-ID für $TAG ist: $RELEASE_ID"
+
+# Für GitHub Actions als Umgebungsvariable
+echo "GT_RELEASE_ID=$RELEASE_ID" >> "$GITHUB_ENV"

.gitea/scripts/set_poetry_version.sh

@@ -0,0 +1,14 @@
+#!/bin/bash
+
+BASE_VERSION=$(cat VERSION)
+NIGHTLY_SUFFIX=""
+
+if [[ "$1" == "nightly" ]]; then
+  # Beispiel: 20240511.1358 → 11. Mai, 13:58 Uhr
+  NIGHTLY_SUFFIX=".dev$(date +%Y%m%d%H%M)"
+fi
+
+FULL_VERSION="${BASE_VERSION}${NIGHTLY_SUFFIX}"
+
+echo "Using version: $FULL_VERSION"
+poetry version "$FULL_VERSION"

.gitea/scripts/sync_version_from_poetry.sh

@@ -0,0 +1,21 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+
+# Stelle sicher, dass wir im Projektverzeichnis sind
+ROOT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")/../.." && pwd)"
+cd "$ROOT_DIR"
+
+PYPROJECT="pyproject.toml"
+VERSION_FILE="VERSION"
+
+# Extrahiere die Version mit grep + sed (keine externen Abhängigkeiten nötig)
+VERSION=$(grep -E '^version\s*=' "$PYPROJECT" | head -n1 | sed -E 's/.*=\s*"([^"]+)".*/\1/')
+
+if [[ -z "$VERSION" ]]; then
+  echo "❌ Version konnte nicht aus $PYPROJECT gelesen werden."
+  exit 1
+fi
+
+printf "%s" "$VERSION" > "$VERSION_FILE"
+echo "✅ Version synchronisiert: $VERSION → $VERSION_FILE"

.gitea/scripts/upload-asset.sh

@@ -0,0 +1,40 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+# Eingabeparameter
+FILE_PATH="$1"                      # z. B. ./dist/build.zip
+CUSTOM_NAME="${2:-}"               # optional: anderer Name unter dem das Asset gespeichert werden soll
+RELEASE_ID="${GT_RELEASE_ID:-}"       # aus Umgebung
+
+# Validierung
+if [[ -z "$RELEASE_ID" ]]; then
+  echo "❌ RELEASE_ID ist nicht gesetzt. Abbruch."
+  exit 1
+fi
+
+if [[ ! -f "$FILE_PATH" ]]; then
+  echo "❌ Datei '$FILE_PATH' existiert nicht. Abbruch."
+  exit 1
+fi
+
+# Default-Konfiguration
+TOKEN="${ACTIONS_RUNTIME_TOKEN:-<fallback_token>}"
+REPO="${GITHUB_REPOSITORY:-owner/example}"
+API="${GITHUB_API_URL:-https://gitea.example.tld/api/v1}"
+
+# Owner/Repo auflösen
+OWNER=$(echo "$REPO" | cut -d/ -f1)
+NAME=$(echo "$REPO" | cut -d/ -f2)
+
+# Dateiname setzen
+FILENAME="${CUSTOM_NAME:-$(basename "$FILE_PATH")}"
+
+echo "🔼 Uploading '$FILE_PATH' as '$FILENAME' to release ID $RELEASE_ID"
+
+# Upload
+curl -sf -X POST \
+  -H "Authorization: token $TOKEN" \
+  -F "attachment=@$FILE_PATH" \
+  "$API/repos/$OWNER/$NAME/releases/$RELEASE_ID/assets?name=$FILENAME"
+
+echo "✅ Upload abgeschlossen: $FILENAME"

.gitea/workflows/build-and-deploy-nightly.yml

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+name: Build and Publish nightly package
+
+on:
+  workflow_dispatch:
+  push:
+    branches:
+      - main
+    paths-ignore:
+      - 'CHANGELOG.md'
+
+jobs:
+  build-and-publish:
+    runs-on: ubuntu-22.04
+
+    steps:
+      - name: Checkout Repository
+        uses: actions/checkout@v4
+
+      - name: 🐍 Setup Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: "3.12"
+
+      - name: 🔄 Restore cache
+        uses: https://git.0xmax42.io/actions/cache@v1
+        with:
+          key: poetry-v1-${{ runner.os }}-${{ hashFiles('poetry.lock') }}
+          paths: |
+            ~/.cache/pypoetry
+            ~/.cache/pip
+
+      - name: Install Poetry
+        run: |
+          pip install poetry
+
+      - name: Install Project Dependencies
+        working-directory: .
+        run: |
+          poetry install
+
+      - name: Set version from VERSION file (with nightly suffix)
+        run: ./.gitea/scripts/set_poetry_version.sh nightly
+
+      - name: Build Package
+        working-directory: .
+        run: |
+          poetry build
+
+      - name: Publish to Gitea Package Registry
+        working-directory: .
+        env:
+          TWINE_USERNAME: ${{ secrets.TWINE_USERNAME }}
+          TWINE_PASSWORD: ${{ secrets.TWINE_PASSWORD }}
+        run: |
+          poetry run twine upload --repository-url ${{ secrets.TWINE_URL }} dist/*
+
+      - name: Cleanup old dev versions
+        run: |
+          .gitea/scripts/cleanup_versions.sh '\.dev'
+        env:
+          TWINE_USERNAME: ${{ secrets.TWINE_USERNAME }}
+          TWINE_PASSWORD: ${{ secrets.TWINE_PASSWORD }}

.gitea/workflows/build-and-deploy-release.yml

@@ -0,0 +1,64 @@
+name: Build and Publish nightly package
+
+on:
+  release:
+    types: [published] 
+
+jobs:
+  build-and-publish:
+    runs-on: ubuntu-22.04
+
+    steps:
+      - name: Checkout Repository
+        uses: actions/checkout@v4
+        with:
+          ref: ${{ github.event.release.tag_name }}
+
+      - name: 🐍 Setup Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: "3.12"
+
+      - name: 🔄 Restore cache
+        uses: https://git.0xmax42.io/actions/cache@v1
+        with:
+          key: poetry-v1-${{ runner.os }}-${{ hashFiles('poetry.lock') }}
+          paths: |
+            ~/.cache/pypoetry
+            ~/.cache/pip
+
+      - name: Install Poetry
+        run: |
+          pip install poetry
+
+      - name: Install Project Dependencies
+        working-directory: .
+        run: |
+          poetry install
+
+      - name: Build Package
+        working-directory: .
+        run: |
+          poetry build
+
+      - name: Get built wheel filename
+        id: get_whl
+        run: |
+          echo "whl_file=$(basename dist/*.whl)" >> $GITHUB_OUTPUT
+          echo "sdist_file=$(basename dist/*.tar.gz)" >> $GITHUB_OUTPUT
+
+      - name: Publish to Gitea Package Registry
+        working-directory: .
+        env:
+          TWINE_USERNAME: ${{ secrets.TWINE_USERNAME }}
+          TWINE_PASSWORD: ${{ secrets.TWINE_PASSWORD }}
+        run: |
+          poetry run twine upload --repository-url ${{ secrets.TWINE_URL }} dist/*
+
+      - name: Get Release ID from tag
+        run: .gitea/scripts/get-release-id.sh "${{ github.event.release.tag_name }}"
+
+      - name: Upload assets
+        run: | 
+          .gitea/scripts/upload-asset.sh ./dist/${{ steps.get_whl.outputs.whl_file }}
+          .gitea/scripts/upload-asset.sh ./dist/${{ steps.get_whl.outputs.sdist_file }}

.gitea/workflows/release.yml

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+name: Auto Changelog & (Release)
+
+on:
+  push:
+    branches:
+      - main
+
+jobs:
+  release:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+      - name: Release
+        uses: https://git.0xmax42.io/actions/auto-changelog-release-action@v0
+        with:
+          token: ${{ secrets.RELEASE_PUBLISH_TOKEN }}