docs: remove outdated metadata files and update README with new demo GIF

fastlane/metadata/en-US/description.txt

@@ -1,24 +0,0 @@
-Conduit is an open-source, native mobile client for Open‑WebUI. Connect to your own server to chat with AI models, manage conversations, and take your self‑hosted AI with you—securely and on the go.
-
-Key Features
-- Real-time streaming chat
-- Model selection
-- Conversation search and management
-- Voice input (speech-to-text)
-- File and image uploads for retrieval-augmented generation (RAG)
-- Vision and multi‑modal support
-- Markdown rendering with syntax highlighting
-- Light, dark, and system themes
-- Secure credential storage
-
-Requirements
-- An existing Open‑WebUI server (Conduit does not host or provide AI models).
-
-Privacy & Permissions
-- Microphone: For voice input
-- Camera and Photos: For image/file attachments
-- Network: To connect to your Open‑WebUI server
-
-Open Source
-Built with Flutter and maintained by the community. Contributions are welcome.
-

fastlane/metadata/en-US/full_description.txt

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+Conduit is an open-source, native mobile client for Open‑WebUI. Connect to your own server to chat with AI models, manage conversations, and take your self‑hosted AI with you—securely and on the go.
+
+Features
+- Real-time streaming chat
+- Model selection
+- Conversation search and management
+- Voice input (speech-to-text)
+- File and image uploads for retrieval-augmented generation (RAG)
+- Vision and multi‑modal support
+- Markdown rendering with syntax highlighting
+- Light, dark, and system themes
+- Secure credential storage (Keychain/Keystore)
+- Offline-aware experience
+
+Requirements
+- Requires an existing Open‑WebUI server. Conduit does not host or provide AI models.
+- No data is sent to third-party services by default; everything stays with your configured server.
+
+Permissions
+- Microphone: Voice input
+- Camera and Photos/Storage: Image/file attachments
+- Network: Connect to your Open‑WebUI server
+
+<b>Support & Source Code:</b>
+
+LuCI Mobile is an open-source project. For support, to report issues, or to view the source code, please visit our GitHub repository:
+
+https://github.com/cogwheel0/conduit
+
+Email: cogwheel@cogwheel.app
+
+-----
+
+<b>Disclaimer:</b> This is an independent, third-party application licensed under the GNU General Public License v3.0 (GPLv3) and is not officially affiliated with the Open WebUI project.
+

fastlane/metadata/en-US/short_description.txt

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+Native mobile client for Open‑WebUI. Chat with your self‑hosted AI.
+

fastlane/metadata/en-US/subtitle.txt

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-Chat with your self‑hosted AI
-