chore: bump version to 0.4.4

[chenyme]

✨ Feature

• Desktop app: Added a native desktop client for macOS, Windows, and Linux, supporting both local use and connections to existing DEEIX Chat servers.
• Local mode: Run the bundled server directly from the desktop app, with conversations and files stored locally using SQLite and a passwordless single-user workflow.
• Multi-server tabs: Connect to multiple servers in one window, reorder tabs by dragging, and restore connected tabs after restarting.
• Native desktop integration: Added system tray support, single-instance behavior, external browser links, and macOS shortcuts for closing tabs and windows.
• Desktop updates: Added update checks and user-confirmed installation. Portable builds provide download notifications, while MSI builds support administrator-managed updates.
• Windows distribution: Added installer, MSI, portable ZIP, and optional offline WebView2 distribution support.
• Enterprise policies: Administrators can preconfigure or lock the server address and disable local mode or automatic updates.
• Desktop download entry: Added configurable desktop download links and a download entry in the web interface.
• BYOK providers: Users can connect model providers with their own API keys, test connections, fetch model lists, enable selected models, and replace credentials.
• Per-model protocols: BYOK models can individually select OpenAI, Anthropic, Google, xAI, or OpenRouter API protocols, including supported Responses and Interactions APIs.
• Provider import links: Added a confirmation-based import flow for provider configurations, suitable for integration with New API and One API sites.
• BYOK administration: Added platform controls for enabling BYOK, limiting providers per user, blocking domains, and suspending or restoring user providers.
• Unified model catalog: Added capability information for input/output modalities, context windows, reasoning levels, and tool support, with administrator overrides.
• Reasoning controls: Users can select supported reasoning levels and regenerate replies with a different reasoning setting.
• Visual model parameters: Added select, toggle, and numeric controls in the composer, alongside provider-native tool switches. Frequently used controls can be pinned.
• Native file input: Supported models and protocols can receive PDF, audio, and video attachments directly, with format and size checks and text fallback for unsupported PDFs.
• Multimodal image embedding: Supported embedding protocols can index image content directly, expanding image retrieval beyond OCR-derived text.
• Stateful interactive responses: Added formula-driven panels, sliders, and explorable diagrams whose results update as users interact.
• Interactive illustrations: Added sandboxed animations, 3D sketches, and process demonstrations, with side-panel viewing, source inspection, and follow-up question controls.
• Saved interaction state: Interactive blocks and custom renderers can save their state with a conversation and pass the current state into subsequent messages.
• Message editing: Added the option to save an edited user message without immediately regenerating the assistant response.
• Processing display: Added a preference for hiding processing steps beneath replies.
• Large text attachments: Large pasted text can automatically become a .txt attachment.
• Vector task management: Administrators can inspect platform-wide indexing status, search files, retry individual or selected tasks, and reprocess files with missing extracted text.
• Error tracing: Added persistent request error records, copyable error IDs, and matching searches across error logs, conversation events, and model-call records.
• Encryption key rotation: Added support for retaining previous encryption keys while stored secrets are migrated to a new key in the background.

⚡ Optimization

• Model picker: Redesigned model selection and detail views to make capabilities, context limits, pricing, and provider information easier to inspect.
• Composer menus: Unified the presentation of knowledge bases, MCP tools, and interactive components, with clearer selection states.
• Quick selection: Added knowledge bases to the composer’s mention menu and improved recent-item ordering and search behavior.
• Parameter layout: Users can pin up to six controls; smaller screens keep fewer controls visible to preserve composer space.
• Media controls: Moved image and video parameters into the composer parameter menu and improved task-specific placeholders and unavailable-state notices.
• JSON editing: Replaced the Monaco JSON editor with a lighter CodeMirror editor and refined parameter-editing interactions.
• Administrator tables: Reworked model and upstream tables and improved capability configuration and model synchronization workflows.
• Catalog refresh: Improved capability snapshot refresh and remote catalog filtering by synchronization status.
• Attachment context: File content now stays attached to its own message turn, preserving a stable reusable prompt-cache prefix.
• Desktop resource use: Tabs load on demand, and long-inactive tabs can release their webviews and reload when selected.
• Local-mode interface: Navigation and settings now reflect available capabilities, hiding unsupported multi-user, billing, and sharing functions.
• Index recovery: Added stalled-task detection, interrupted-task recovery, automatic progress refresh, and selective indexing that avoids rebuilding already-ready files.
• Debug inspection: Improved upstream request and response views with formatted/raw modes and copy actions.
• Library navigation: Renamed the visible Skills area to Library and aligned related navigation.
• Rendering: Updated Markdown and Mermaid rendering and improved loading and fallback states for interactive content.

🐛 Fixed

• Preserved conversation context across cancelled generations.
• Preserved attachment awareness when extracted content is unavailable.
• Kept original pasted text when automatic .txt conversion fails.
• Fixed provider sign-in callbacks across web and desktop, including native loopback completion.
• Fixed desktop webview cross-origin API access.
• Fixed premature branding requests before a desktop tab is bound to its server.
• Fixed Windows window controls, installation, build, and release packaging issues.
• Stabilized the desktop tab-strip height on Linux.
• Fixed composer menus and model detail panels extending outside the viewport.
• Allowed upstream model synchronization to tolerate unresolved protocols.
• Fixed unexpected caching of exported server-component responses.
• Corrected administrator log refresh and cleanup behavior.
• Restored HTTP_PROXY / HTTPS_PROXY support when SSRF protection is enabled.
• Removed API key hints from audit records and hardened provider import-link parsing.
• Improved interactive illustration title extraction and HTML entity handling.
• Addressed security advisories affecting image processing and other dependencies.