v0.5.4

Added

• 📱 Full PWA support. cptr can now be installed as a standalone app on phones, tablets, and desktops. Includes offline caching, an offline fallback page, home screen shortcuts (New Chat, Open Workspace, New Note, New Terminal, Search), and a service worker that keeps static assets available when the server is unreachable.
• 📤 Share target. Share files, text, or links from other apps directly into cptr. On mobile, use the system share sheet to send content straight to a chat.
• 📂 File handling. Opening supported file types (code, documents, images) with cptr now imports them into your workspace with a folder picker.
• 📊 Context usage indicator. The chat panel now shows how full the context window is, so you can see at a glance how much room is left before compaction kicks in.
• 🗂️ Workspace picker for imports. When importing shared files or opening files from outside the app, a workspace picker lets you choose where to save them.
• 🔧 PWA settings tab. A new tab in Settings shows your install status, lets you check for service worker updates, and clear the offline cache.
• 🖥️ Status modal. A new status indicator in the chat panel shows server connection state and context usage at a glance.

Changed

• 🌐 Perplexity base URL is now configurable. You can point the Perplexity search provider at a custom endpoint (like a LiteLLM proxy) from Settings or via the PERPLEXITY_BASE_URL environment variable.
• 🤖 Simplified default system prompt. Removed the instruction that told the AI to always create a plan before acting. The AI now helps directly unless you ask it to plan.
• 📂 File uploads no longer overwrite existing files. Uploading a file with the same name as an existing one now automatically adds a number suffix instead of replacing it.
• 🌍 New translation keys. Added PWA, share, file handling, and status labels across supported languages.