Rename package to cy.hexor.furumi, add F-Droid compatibility

- Rename applicationId and all sources from com.example.furumi_android to cy.hexor.furumi
- Add WTFPL LICENSE
- Add fastlane metadata
- Add fdroiddata build metadata cy.hexor.furumi.yml
- Remove foojay-resolver plugin (blocked by F-Droid scanner)

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

cy.hexor.furumi.yml

@@ -0,0 +1,41 @@
+Categories:
+  - Multimedia
+License: WTFPL
+AuthorName: ab
+SourceCode: https://gt.hexor.cy/ab/furumi_android
+IssueTracker: https://gt.hexor.cy/ab/furumi_android/issues
+
+AutoName: Furumi
+
+Description: |-
+  Furumi is an Android client for the Furumi self-hosted music streaming server.
+
+  Connect to your own Furumi instance and enjoy your personal music library from anywhere.
+
+  Features:
+
+  * Browse your music library — artists, albums, and tracks
+  * Full playback controls with background playback support
+  * Queue management and listening history
+  * Connect and control multiple remote devices
+  * Jam sessions — listen together with others
+  * Secure authentication with token-based sessions
+  * Material You design with edge-to-edge UI
+
+  Requires a running Furumi server instance to connect to.
+
+RepoType: git
+Repo: https://gt.hexor.cy/ab/furumi_android.git
+
+Builds:
+  - versionName: '1.1'
+    versionCode: 1
+    commit: v1.1
+    subdir: app
+    gradle:
+      - yes
+
+AutoUpdateMode: Version v%v
+UpdateCheckMode: Tags
+CurrentVersion: '1.1'
+CurrentVersionCode: 1