chore: add AppImage release packaging

README.md

@@ -52,8 +52,6 @@ uv run scanslicer --backend x11
 
 ### Run with Python directly
 
-The package directory now matches the published name:
-
 ```bash
 python -m scanslicer
 ```
@@ -110,8 +108,6 @@ Environment variable overrides:
 - `SCANSLICER_FEEDBACK_PATH`
 - `SCANSLICER_STATUS_LOG_PATH`
 
-Legacy override names are still accepted for backward compatibility.
-
 ## Docker Compose
 
 The repo includes a GUI-oriented compose setup for Linux desktop use:
@@ -133,21 +129,21 @@ Detailed instructions: `docs/appimage.md`.
 
 ## Documentation
 
-- `docs/README.md` - documentation index
-- `docs/user-guide.md` - end-user operation guide
-- `docs/architecture.md` - code architecture and execution flow
-- `docs/parameters.md` - full detection parameter reference
-- `docs/autotune.md` - auto-tune and feedback internals
+- `docs/README.md`         - documentation index
+- `docs/user-guide.md`     - end-user operation guide
+- `docs/architecture.md`   - code architecture and execution flow
+- `docs/parameters.md`     - full detection parameter reference
+- `docs/autotune.md`       - auto-tune and feedback internals
 - `docs/runtime-config.md` - backend/environment and persistence paths
-- `docs/appimage.md` - AppImage packaging details
-- `docs/development.md` - contributor-focused architecture/workflow notes
+- `docs/appimage.md`       - AppImage packaging details
+- `docs/development.md`    - contributor-focused architecture/workflow notes
 
 ## Repository Layout
 
 ```text
-scanslicer/                  Application source (UI, controllers, canvas, detection)
-packaging/appimage/           AppImage recipe and build scripts
-Dockerfile                    Runtime image
-docker-compose.yml            GUI container runtime wiring
-pyproject.toml                Python package metadata and dependencies
+scanslicer/                - Application source (UI, controllers, canvas, detection)
+packaging/appimage/        - AppImage recipe and build scripts
+Dockerfile                 - Runtime image
+docker-compose.yml         - GUI container runtime wiring
+pyproject.toml             - Python package metadata and dependencies
 ```

THIRD_PARTY_NOTICES

@@ -0,0 +1,44 @@
+ScanSlicer AppImage Third-Party Notices
+======================================
+
+This AppImage bundles ScanSlicer together with third-party software.
+Those components remain under their own licenses.
+
+The Python package set is resolved from the committed `uv.lock` file at
+build time. The versions listed below reflect the versions pinned in this
+repository at the time this notice was generated.
+
+Python packages bundled by the AppImage build:
+
+- PySide6 6.10.2
+  License metadata: LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
+- PySide6-Addons 6.10.2
+  Distributed as part of the PySide6 runtime stack. See the PySide6 and Qt
+  license materials bundled with the wheel metadata for the exact terms.
+- PySide6-Essentials 6.10.2
+  Distributed as part of the PySide6 runtime stack. See the PySide6 and Qt
+  license materials bundled with the wheel metadata for the exact terms.
+- shiboken6 6.10.2
+  License metadata: LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
+- numpy 2.4.2 (Python 3.11+) or 2.2.6 (Python < 3.11)
+  License metadata (installed Python 3.11 build): BSD-3-Clause AND 0BSD AND
+  MIT AND Zlib AND CC0-1.0
+- Pillow 12.1.1
+  License metadata: MIT-CMU
+- opencv-python 4.13.0.92
+  This package is installed from PyPI according to `uv.lock`. Consult the
+  package's bundled metadata and license files in the installed wheel for the
+  exact terms that apply to the shipped build.
+
+System packages bundled by the AppImage:
+
+- The AppImage also includes selected Ubuntu Noble runtime libraries and the
+  CPython runtime as listed in `packaging/appimage/AppImageBuilder.yml`.
+  Those components remain under their respective upstream and distribution
+  licenses.
+
+Release hygiene:
+
+- Keep this file aligned with `uv.lock` when dependency versions change.
+- Publish the corresponding source code for the exact AppImage build you ship.
+- Include the project `LICENSE` file alongside this notice.

docs/appimage.md

@@ -8,6 +8,8 @@ ScanSlicer includes a full AppImage packaging workflow under `packaging/appimage
 - `packaging/appimage/build-appimage.sh`: local build script
 - `packaging/appimage/build-appimage-docker.sh`: containerized build wrapper
 - `packaging/appimage/Dockerfile`: AppImage build environment
+- `LICENSE`: project GPLv3 license bundled with AppImage releases
+- `THIRD_PARTY_NOTICES`: bundled dependency notice file for AppImage releases
 - desktop entry file in `packaging/appimage/`
 - application icon file in `packaging/appimage/`
 
@@ -42,6 +44,9 @@ Prerequisite:
 
 - Docker
 
+The Docker build image pins a specific `appimage-builder` version so release
+builds use a stable packaging toolchain.
+
 Command:
 
 ```bash
@@ -68,6 +73,7 @@ Optional environment variables:
 - Removes bundled Qt system libs to prefer PySide wheel Qt runtime
 - Installs Python dependencies and project wheel into AppDir `/usr`
 - Injects desktop entry and icon assets during `after_bundle`
+- Copies `LICENSE` and `THIRD_PARTY_NOTICES` into `usr/share/doc/scanslicer/`
 
 Runtime environment variables set in AppDir include:
 
@@ -84,3 +90,20 @@ Expected output artifact location:
 - `appimage/dist/ScanSlicer-<version>-x86_64.AppImage`
 
 Intermediate build files are kept under `appimage/build/`.
+
+## Release Checklist
+
+Before publishing an AppImage:
+
+1. Build from a committed state that has a matching source tag or commit you
+   will publish.
+2. Verify `uv.lock` is committed so the bundled Python dependency set is
+   reproducible from source.
+3. Confirm the AppImage contains `usr/share/doc/scanslicer/LICENSE` and
+   `usr/share/doc/scanslicer/THIRD_PARTY_NOTICES`.
+4. Publish the AppImage together with the corresponding source code for that
+   exact release.
+5. Review `THIRD_PARTY_NOTICES` whenever dependency versions change, especially
+   the PySide6 / Qt runtime stack.
+6. If you change the pinned `appimage-builder` version, rerun a full AppImage
+   smoke test before publishing.

packaging/appimage/AppImageBuilder.yml

@@ -66,11 +66,14 @@ AppDir:
       exit 1
     fi
     mkdir -p "${APPDIR_PATH}/usr/share/applications"
+    mkdir -p "${APPDIR_PATH}/usr/share/doc/scanslicer"
     mkdir -p "${APPDIR_PATH}/usr/share/icons"
     mkdir -p "${APPDIR_PATH}/usr/share/pixmaps"
     mkdir -p "${APPDIR_PATH}/icons"
     mkdir -p "${APPDIR_PATH}/pixmaps"
     cp "${SCANSLICER_ROOT}/packaging/appimage/scanslicer.desktop" "${APPDIR_PATH}/usr/share/applications/scanslicer.desktop"
+    cp "${SCANSLICER_ROOT}/LICENSE" "${APPDIR_PATH}/usr/share/doc/scanslicer/LICENSE"
+    cp "${SCANSLICER_ROOT}/THIRD_PARTY_NOTICES" "${APPDIR_PATH}/usr/share/doc/scanslicer/THIRD_PARTY_NOTICES"
     cp "${SCANSLICER_ROOT}/packaging/appimage/scanslicer.svg" "${APPDIR_PATH}/usr/share/icons/scanslicer.svg"
     cp "${SCANSLICER_ROOT}/packaging/appimage/scanslicer.svg" "${APPDIR_PATH}/usr/share/pixmaps/scanslicer.svg"
     rsvg-convert -w 256 -h 256 "${SCANSLICER_ROOT}/packaging/appimage/scanslicer.svg" > "${APPDIR_PATH}/usr/share/icons/scanslicer.png"
@@ -80,6 +83,8 @@ AppDir:
     cp "${APPDIR_PATH}/usr/share/icons/scanslicer.png" "${APPDIR_PATH}/.DirIcon"
     test -f "${APPDIR_PATH}/usr/share/icons/scanslicer.png"
     test -f "${APPDIR_PATH}/usr/share/pixmaps/scanslicer.png"
+    test -f "${APPDIR_PATH}/usr/share/doc/scanslicer/LICENSE"
+    test -f "${APPDIR_PATH}/usr/share/doc/scanslicer/THIRD_PARTY_NOTICES"
     test -f "${APPDIR_PATH}/icons/scanslicer.png"
     test -f "${APPDIR_PATH}/pixmaps/scanslicer.png"
     test -f "${APPDIR_PATH}/.DirIcon"

packaging/appimage/Dockerfile

@@ -2,6 +2,8 @@ FROM ubuntu:24.04
 
 COPY --from=ghcr.io/astral-sh/uv:0.10.2 /uv /uvx /usr/local/bin/
 
+ARG APPIMAGE_BUILDER_VERSION=1.1.0
+
 ENV DEBIAN_FRONTEND=noninteractive \
     PYTHONDONTWRITEBYTECODE=1 \
     PYTHONUNBUFFERED=1
@@ -29,6 +31,6 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
 
 RUN python3 -m pip install --no-cache-dir --break-system-packages \
     "packaging<21" \
-    appimage-builder
+    "appimage-builder==${APPIMAGE_BUILDER_VERSION}"
 
 WORKDIR /work