Refactor to Cargo Workspace (#129)

* Refactor project into a Cargo workspace with distinct packages

- Created a root `Cargo.toml` defining a workspace.
- Moved `src/types` and `src/utils` into a new `pwsp-lib` crate for shared logic.
- Split binaries into their own crates: `pwsp-daemon`, `pwsp-cli`, and `pwsp-gui`.
- Shifted all dependencies into `[workspace.dependencies]` for centralized version management.
- Updated import paths across all crates (e.g. from `pwsp::` to `pwsp_lib::`).
- Updated build scripts, GitHub actions, Flatpak manifest, and AUR PKGBUILD to support the new workspace structure.
- Ensured no core application logic was altered.

Co-authored-by: arabianq <55220741+arabianq@users.noreply.github.com>

* Fix cargo-deb build process in GitHub actions for workspace architecture

Co-authored-by: arabianq <55220741+arabianq@users.noreply.github.com>

* Fix cargo-deb asset discovery by using exact target/release paths

Co-authored-by: arabianq <55220741+arabianq@users.noreply.github.com>

* refactor deps in Cargo.toml files

* fix incorrect assets path

---------

Co-authored-by: google-labs-jules[bot] <161369871+google-labs-jules[bot]@users.noreply.github.com>

packages/aur/standart/PKGBUILD

@@ -40,8 +40,8 @@ package() {
   install -Dm755 "target/release/pwsp-daemon" "${pkgdir}/usr/bin/pwsp-daemon"
   install -Dm755 "target/release/pwsp-gui" "${pkgdir}/usr/bin/pwsp-gui"
 
-  install -Dm644 "assets/pwsp-gui.desktop" "${pkgdir}/usr/share/applications/pwsp-gui.desktop"
-  install -Dm644 "assets/icon.png" "${pkgdir}/usr/share/icons/hicolor/256x256/apps/pwsp.png"
+  install -Dm644 "pwsp-gui/assets/pwsp-gui.desktop" "${pkgdir}/usr/share/applications/pwsp-gui.desktop"
+  install -Dm644 "pwsp-gui/assets/icon.png" "${pkgdir}/usr/share/icons/hicolor/256x256/apps/pwsp.png"
 
-  install -Dm644 "assets/pwsp-daemon.service" "${pkgdir}/usr/lib/systemd/user/pwsp-daemon.service"
+  install -Dm644 "pwsp-gui/assets/pwsp-daemon.service" "${pkgdir}/usr/lib/systemd/user/pwsp-daemon.service"
 }

packages/flatpak/ru.arabianq.pwsp.metainfo.xml

@@ -15,7 +15,7 @@
     <launchable type="desktop-id">ru.arabianq.pwsp.desktop</launchable>
     <screenshots>
         <screenshot type="default">
-            <image>https://raw.githubusercontent.com/arabianq/pipewire-soundpad/master/assets/screenshot.png</image>
+            <image>https://raw.githubusercontent.com/arabianq/pipewire-soundpad/main/pwsp-gui/assets/screenshot.png</image>
         </screenshot>
     </screenshots>
     <url type="homepage">https://pwsp.arabianq.ru</url>

packages/flatpak/ru.arabianq.pwsp.yaml

@@ -35,7 +35,7 @@ modules:
       - install -Dm755 target/release/pwsp-cli /app/bin/pwsp-cli
       - install -Dm755 target/release/pwsp-gui /app/bin/pwsp-gui
       - install -Dm755 packages/flatpak/pwsp-wrapper.py /app/bin/pwsp-wrapper.py
-      - install -Dm644 assets/icon.png /app/share/icons/hicolor/256x256/apps/ru.arabianq.pwsp.png
+      - install -Dm644 pwsp-gui/assets/icon.png /app/share/icons/hicolor/256x256/apps/ru.arabianq.pwsp.png
       - install -Dm644 packages/flatpak/ru.arabianq.pwsp.desktop /app/share/applications/ru.arabianq.pwsp.desktop
       - install -Dm644 packages/flatpak/ru.arabianq.pwsp.metainfo.xml /app/share/metainfo/ru.arabianq.pwsp.metainfo.xml
     sources:

packages/rpm/pwsp.spec

@@ -39,10 +39,10 @@ install -Dm755 target/release/pwsp-cli %{buildroot}%{_bindir}/pwsp-cli
 install -Dm755 target/release/pwsp-daemon %{buildroot}%{_bindir}/pwsp-daemon
 install -Dm755 target/release/pwsp-gui %{buildroot}%{_bindir}/pwsp-gui
 
-install -Dm644 assets/pwsp-gui.desktop %{buildroot}%{_datadir}/applications/pwsp.desktop
-install -Dm644 assets/icon.png %{buildroot}%{_datadir}/icons/hicolor/256x256/apps/pwsp.png
+install -Dm644 pwsp-gui/assets/pwsp-gui.desktop %{buildroot}%{_datadir}/applications/pwsp.desktop
+install -Dm644 pwsp-gui/assets/icon.png %{buildroot}%{_datadir}/icons/hicolor/256x256/apps/pwsp.png
 
-install -Dm644 assets/pwsp-daemon.service %{buildroot}/usr/lib/systemd/user/pwsp-daemon.service
+install -Dm644 pwsp-gui/assets/pwsp-daemon.service %{buildroot}/usr/lib/systemd/user/pwsp-daemon.service
 
 %files
 %license LICENSE