chore: add project scaffolding and resources

This initial commit scaffolds the project with essential docs, assets, and build configs.
It adds Android icons, design assets, and release metadata to support mobile targets.
A fastlane config and F-Droid manifest are included to streamline builds.

- Adds F-Droid configuration for automated builds
- Includes license and privacy policy documents
- Provides app icons and assets for Android and design system

.fdroid.yml

@@ -0,0 +1,44 @@
+Categories:
+  - Theming
+License: GPL-3.0-only
+AuthorName: Christoph
+WebSite: https://git.cbsk-tech.de/Christoph/LockScreenWallpaper
+SourceCode: https://git.cbsk-tech.de/Christoph/LockScreenWallpaper
+IssueTracker: https://git.cbsk-tech.de/Christoph/LockScreenWallpaper/issues
+
+AutoName: WallpaperFlow
+
+RepoType: git
+Repo: https://git.cbsk-tech.de/Christoph/LockScreenWallpaper.git
+
+Builds:
+  - versionName: 0.1.0
+    versionCode: 1000
+    commit: v0.1.0
+    ndk: 28.2.13676358
+    sudo:
+      - apt-get update
+      - apt-get install -y npm make gcc libc-dev
+    srclibs:
+      - rustup@1.28.2
+      - esbuild@v0.25.12
+    scandelete:
+      - node_modules
+    prebuild:
+      - npm ci --ignore-scripts
+      - $$rustup$$/rustup-init.sh -y --default-toolchain 1.95.0 --target aarch64-linux-android,armv7-linux-androideabi,i686-linux-android,x86_64-linux-android
+      - source $$HOME$$/.cargo/env
+      - cargo install tauri-cli --version 2.11.4 --locked
+      - pushd $$esbuild$$ && make esbuild && popd
+      - mv $$esbuild$$/esbuild node_modules/@esbuild/linux-x64/bin/esbuild
+    build:
+      - source $$HOME$$/.cargo/env
+      - export NDK_HOME=$$NDK$$
+      - export ANDROID_NDK_HOME=$$NDK$$
+      - cargo tauri android build --apk
+    output: src-tauri/gen/android/app/build/outputs/apk/universal/release/app-universal-release-unsigned.apk
+
+AutoUpdateMode: Version
+UpdateCheckMode: Tags
+CurrentVersion: 0.1.0
+CurrentVersionCode: 1000